1. Manuals
  2. Brands
  3. Newport Manuals
  4. Controller
  5. 6000
  6. Operation and maintenance manual

Newport 6000 Operation And Maintenance Manual

Laser controller
Hide thumbs
Table of Contents

Advertisement

Quick Links

Model 6000 Laser Controller
Operation and Maintenance Manual
i

Advertisement

Table of Contents
loading

Related Manuals for Newport 6000

Summary of Contents for Newport 6000

  • Page 1 Model 6000 Laser Controller Operation and Maintenance Manual...
  • Page 2 Newport Corporation, Irvine, California, has been certified compliant with ISO 9002 by the British Standards Institution. Corporate Headquarters Canada Italy Netherlands Taiwan R.O.C. Newport Corporation Telephone: 905-567-0390 Telephone: 02-924-5518 Telephone: 030-6592111 Telephone: 2-2769-9796 1791 Deere Avenue Facsimile: 905-567-0392 Facsimile: 02-923-2448...

  • Page 3: Limited Warranty

    If any such product proves defective during the applicable warranty period, Newport, at its option, either will repair the defective product with charge for parts and labor or will provide a replacement in exchange for the defective product.

  • Page 4: Ec Declaration Of Conformity

    EC DECLARATION OF CONFORMITY Model 6000 Laser Controller We declare that the accompanying product, identified with the “ ” mark, meets all relevant requirements of Directive 89/336/EEC and Low Voltage Directive 73/23/EEC. Compliance was demonstrated to the following specifications: EN50081-1 EMISSIONS:...

  • Page 5: Table Of Contents

    Tilt-Foot Adjustment ____________________________________________________ 8 2.2.3 Rack Mounting _________________________________________________________ 8 2.2.4 Ventilation Requirements _________________________________________________ 8 2.2.5 Power-Up Sequence _____________________________________________________ 8 Introduction to the 6000 Front Panel ___________________________________ 9 2.3.1 Model 6000____________________________________________________________ 9 2.3.2 Model 6000M and 6000MF ______________________________________________ 10 General Operation _________________________________________________ 11 2.4.1 Display Elements ______________________________________________________ 11 2.4.1.1...
  • Page 6 Rear Panel Familiarization __________________________________________ 21 2.5.1 GPIB Connector_______________________________________________________ 21 2.5.2 RS-232 Connector _____________________________________________________ 21 2.5.3 Input Power Connector _________________________________________________ 21 2.5.4 GND Post____________________________________________________________ 22 Warm Up and Environmental Consideration ___________________________ 22 Principles of Operation _________________________________________23 Introduction _______________________________________________________ 23 Laser Module Theory of Operation____________________________________ 24 3.2.1 Laser Interface ________________________________________________________ 24 3.2.2...
  • Page 7 Power Supplies ____________________________________________________ 34 3.5.1 Module Power Supplies _________________________________________________ 34 3.5.2 Main Supply __________________________________________________________ 35 Interlock Operation ________________________________________________ 35 3.6.1 Laser Interlock ________________________________________________________ 35 Laser Diode Driver Module Operation _____________________________37 Laser Diode Driver Module __________________________________________ 37 4.1.1 Introduction __________________________________________________________ 37 4.1.2 Installation ___________________________________________________________ 37 4.1.3...
  • Page 8 TEC Safety Features ________________________________________________ 53 5.2.1 Conditions Which Will Automatically Shut Off the TEC Output _________________ 53 The TEC Connectors________________________________________________ 53 5.3.1 TEC Grounding Consideration ___________________________________________ 54 TEC Module Operation _____________________________________________ 54 5.4.1 Quick Start ___________________________________________________________ 54 5.4.2 TEC Main Screen______________________________________________________ 54 5.4.3 TEC Setup Screen _____________________________________________________ 55 5.4.3.1...
  • Page 9 Calibration Overview _______________________________________________ 73 7.1.1 Environmental Conditions _______________________________________________ 73 7.1.2 Warm-Up ____________________________________________________________ 73 Laser Calibration __________________________________________________ 73 7.2.1 Recommended Equipment _______________________________________________ 73 7.2.2 Drive Current Load Resistor Selection ______________________________________ 74 7.2.3 Local Operation Current Source Calibration _________________________________ 74 7.2.4 Remote Operation Current Source Calibration ________________________________ 75 7.2.5 Local Operation I Current Calibration_____________________________________ 76...
  • Page 10 Table 11 - Recommended Test Equipment_____________________________________________ 80 Table 12 - Error Codes ___________________________________________________________ 93 Figures Figure 1 - Model 6000 Front Panel __________________________________________________ 9 Figure 2 - A Sample Screen with Various Data Fields ___________________________________ 13 Figure 3 - Model 6000 Menu Structure_______________________________________________ 14...

  • Page 11: General Information

    Link feature allows inter-module programming control not found in any other products. Built-in Temperature Controller (TEC) Module • Model 6000 and 6000M: 32 Watt (4A/8V), ultra stable bipolar output • Model 6000MF: 45 Watt (2.5A/18V), ultra stable bipolar output • Thermistor, AD590, LM335, and Pt RTD sensors Laser Diode Driver (LDD) Modules •...
  • Page 12 Chapter 1 General Information • Constant Resistance • Constant TE Current Short term stability is less than 0.0005°C while long term stability is better than 0.001°C. Four sensor types are compatible with this TEC module: • Thermistors • AD590 series •...

  • Page 13: Available Options And Accessories

    GPIB interface. In addition, standard serial RS-232C ports allow simpler interfacing to a PC. As your instrumentation needs change the Model 6000 Modular Controller will adapt to all your new laser diode applications giving you the ultimate in flexible laboratory equipment.

  • Page 14: Safety Terms And Symbols

    Chapter 1 General Information Safety Terms and Symbols 1.4.1 Terms The following safety terms are used in this manual: The WARNING heading in this manual explains dangers that could result in personal injury or death. The CAUTION heading in this manual explains hazards that could damage the instrument.
  • Page 15 CAUTION There are no serviceable parts inside the Model 8000. Work performed by persons not authorized by Newport Corporation may void the warranty. For instructions on obtaining warranty repair or service please refer to...

  • Page 17: System Operation

    However, be sure that the voltage setting is correct on the power input module and correct fuses are installed per section 6.2 before connecting to an AC source. The 6000 is shipped set for 120 VAC and a caution sticker is placed on the input power connector.

  • Page 18: Tilt-Foot Adjustment

    If the 6000 cannot successfully complete this test, an error message will be displayed. After this test, the 6000 is configured to the state it was in when the power was last shut off and displays the master display.

  • Page 19: Introduction To The 6000 Front Panel

    Introduction to the 6000 Front Panel 2.3.1 Model 6000 Described below are the functions of each area of the Model 6000 front panel, as shown in Figure 1. See the following section for the Model 6000M and 6000MF. Figure 1 - Model 6000 Front Panel Power On/Off Switch - Switches on/off the AC power to the unit.

  • Page 20: Model 6000M And 6000Mf

    Chapter 2 System Operation faster. Turning slowly allows for a fine adjustment at the smallest displayed decimal place. 2.3.2 Model 6000M and 6000MF The only physical difference on the front panel for the Model 6000M and Model 6000MF is the TEC On button has been replaced by the MOPA Amplifier On button, which allows independent control of each MOPA channel, and the LDD On button has been renamed to OSC On button.

  • Page 21: General Operation

    2.4.1 Display Elements The Model 6000 uses a character display to depict information about the current state of the system. The display can be broken down into four basic elements: static fields, non-editable data fields, editable data fields, and soft key labels.

  • Page 22: Soft Keys

    Chapter 2 System Operation fields are multi-choice fields, such as Yes/No fields. Both types are changed with the left and right arrows or the knob. 2.4.1.4 Soft Keys Soft key labels are labels for the two gray buttons located to the immediate right of the display.

  • Page 23: Function Keys

    2.4.2 Function Keys The FUNC button serves two purposes on the 6000: first, as a quick navigation method that speeds switching between laser module and TEC screens; and second, as a method of setting up and executing user defined macros and special functions.

  • Page 24: Menu Structure

    Chapter 2 System Operation 2.4.3 Menu Structure Master Display Main Menu Modules Laser/MOPA Osc Setup MOPA Amp Setup Setup Communications Local Configure Menu System Linking Save/Recall Calibration Figure 3 - Model 6000 Menu Structure...

  • Page 25: Master Display

    Chapter 2 System Operation 2.4.4 Master Display The Master Display is shown in Figure 4. This is the highest level display and indicates the general status of both the laser module and TEC in the system at the same time. →...

  • Page 26: Configure Menu

    LOCAL - When the unit is in remote mode, either through GPIB or RS-232C communications, the Local soft key will be available. Pressing it returns the 6000 to a local state. When in local mode, this key does not appear on the display.

  • Page 27: System Configure Screen

    Audible Beep controls the system’s audible beeper. The beeper indicates errors, invalid data entry, and other situations where the 6000 needs to alert the user. Each press of the MASTER button will clear one error.

  • Page 28: Save/Recall Screen

    6000 are stored. The user selects a “bin” number (1 - 5) for saving the parameters. Then, when that “bin” number is recalled, the 6000 is restarted and the parameters are reconfigured to the previously stored values.
  • Page 29 Chapter 2 System Operation The headings were abbreviated because of space limitations, and the full names are Source, Condition, Action, and Target. In addition, the condition and action values were also abbreviated. See the tables below for the full text of each abbreviation: Laser Conditions TEC Conditions Abbrev...

  • Page 30: Calibration Screen

    6000. Display of error messages on the 6000 screen may be disabled while in remote mode by setting Err While Rmt to No, or by using the GPIB command REMERR to set this value...

  • Page 31: Rear Panel Familiarization

    Metric lock screws. 2.5.2 RS-232 Connector The 6000 has an RS-232 connector located on the back panel. See the Computer Interfacing Manual for a more complete description of the RS-232 interface. 2.5.3 Input Power Connector Accepts a standard line cord for AC input.

  • Page 32: Gnd Post

    Use a minimum of 18 gauge wire to connect to this terminal. Warm Up and Environmental Consideration Operate the 6000 at an ambient temperature in the range of 0 to +40°C. Storage temperatures should be in the range of -20 to +60°C. To achieve rated accuracy, let the 6000 warm up for 1 hour.

  • Page 33: Principles Of Operation

    C H A P T E R Principles of Operation Introduction A functional block diagram of the 6000 is shown in Figure 13. In each of the following sections there are functional block diagrams for the various circuit boards of the 6000.

  • Page 34: Laser Module Theory Of Operation

    Chapter 3 Principles of Operation Laser Module Theory of Operation Figure 14 shows the functionality of the Laser Module. The following sections detail the theory of operation for each of the blocks in Figure 14. The circuit block diagrams for each laser mode of operation are shown in Figure 15, Figure 16, and Figure 17.

  • Page 35: Limit Dac

    Chapter 3 Principles of Operation 3.2.2 Limit DAC The microprocessor loads the current limit value into the 12-bit DAC. The Limit DAC converts a digital limit signal from the microprocessor to a voltage which becomes the Limit Set Point voltage for the Output Stage. The current limit value is updated at power-up, at a "bin"...

  • Page 36: Photodiode Feedback Amplifier

    Chapter 3 Principles of Operation 3.2.8 Photodiode Feedback Amplifier Photodiode feedback is amplified by a precision instrumentation amplifier. When constant Power mode is selected, the photodiode feedback signal is used to control the laser output. 3.2.9 Constant Current, High Bandwidth Mode This mode of laser operation is shown in Figure 15.

  • Page 37: Constant Power Mode

    Chapter 3 Principles of Operation Unregulated DC Voltage Regulator Modulation Input Pass Transistor Current Set Point Output Shorting Laser Diode Current Sense Figure 16 - Constant Current - Low Bandwidth Mode 3.2.11 Constant Power Mode In constant P mode the laser circuit is configured as shown in Figure 17. Photodiode feedback is used to control the laser output and the bandwidth is held low.

  • Page 38: Figure 17 - Constant Power Mode

    Chapter 3 Principles of Operation Unregulated DC Voltage Regulator Modulation Input Pass Transistor Current Set Point Output Shorting Laser Diode Current Photodiode Input Amp Sense Figure 17 - Constant Power Mode...

  • Page 39: Tec Module Theory Of Operation

    Chapter 3 Principles of Operation TEC Module Theory of Operation Figure 18 shows the functionality of the TEC module. The following sections detail the theory of operation for each of the blocks in Figure 18. To Microprocessor Optically Limit Set Point Isolated Limit DAC Serial Bus...

  • Page 40: Set Point Dac

    Chapter 3 Principles of Operation Stage. The current limit value is updated at power-up, at a "bin" recall, and whenever the LIM I value is changed. 3.3.3 Set Point DAC The microprocessor loads the digitally stored current set point value into the set point 16-bit DAC.

  • Page 41: Bipolar Output Stage

    3.3.9 TEC Control Modes The 6000 provides three control modes for operation, constant T (temperature), constant R (resistance, voltage, or current), and constant I (current) modes. Each of these modes is discussed in the following sections.

  • Page 42: R Mode

    Chapter 3 Principles of Operation When an LM335 sensor is used, a two-point conversion equation is used to determine the temperature. Its voltage is measured as well as the I current. When an AD590 sensor is used, another two-point conversion equation is used to determine the temperature.

  • Page 43: Microprocessor Board

    The Microprocessor Board contains the microprocessor, memory, the serial interface to the TEC and Laser Modules, front panel interface, and circuitry which monitors the AC line voltage and saves the state of the 6000 at power down. The block diagram of the Microprocessor Board is shown in Figure 19.

  • Page 44: Memory

    Principles of Operation 3.4.2 Memory The 6000 uses three types of memory. RAM memory is retained only while power is applied to the unit. ROM memory contains the firmware. The third type of memory is electrically erasable programmable memory: EEPROM.

  • Page 45: Main Supply

    Chapter 3 Principles of Operation Rectifiers LDD Module Transformer Regulators and Filters Supply Power Entry Rectifiers TEC Module Regulators Module and Filters Supply Transformer Rectifiers Main Regulators and Filters Supply Figure 20 - Power Supply Block Diagram 3.5.2 Main Supply This supply provides digital circuit power for all functions except the laser module and TEC.

  • Page 47: Laser Diode Driver Module Operation

    Features of the 6500 Series include: • Service-free modularity (calibration information is stored on the module) • Closed-case calibration • High-stability, low noise design • Flexible setup with 6000 Save/Recall front panel functions • Photodiode feedback control mode • Modulation input • Fault detection •...

  • Page 48: Laser Diode Protection Requirements

    Turn the 6000 power off. Installing a module with the 6000 on can damage the module and the 6000. Place the module into the open bay on the back of the 6000 and slide the module into place. There are tracks at the top and bottom of the bay which guide the module into place.
  • Page 49 Chapter 4 Laser Diode Driver Module Operation ♦ Recess the laser diode inside a metal shielded enclosure, such as a Model 700C laser diode mount, recessed at least ¼” with the minimum aperture necessary to allow beam exit (less than 0.125”). ♦...

  • Page 50: Laser Safety Features

    Chapter 4 Laser Diode Driver Module Operation 3.5 uH Ferrite Beads LDD Connector Mouser P/N 542-FB73-287 D-Sub 9 PD Anode (pin 7) .1 uF When applying high LD Anode (pin 8,9) speed modulation to the .1 uF laser diode, this circuit will reduce the maximum LD Cathode (pin 4,5)

  • Page 51: Turn On Delay

    4.2.3 Turn On Delay The 6000 is CDRH Compliant with a user programmable turn on delay. The default turn on delay is three seconds, but is user programmable from 0 to 30 seconds. The delay setting is in the system configure screen, which can be reached by pressing the MENU button, followed by the Config soft key, then the System soft key.

  • Page 52: Modulation

    Connecting to Your Laser When connecting laser diodes and other sensitive devices to the module, we recommend that the 6000 be powered-up and the laser output be off . In this condition, a low impedance shunt is active across the output terminals. When...

  • Page 53: Laser Diode Connections And Shielding

    These circuits detect the abrupt change in current that occurs when the output circuit is opened, and the 6000 will generate an E-503 error. Experience indicates that should an open circuit occur during laser operation, the laser may be damaged.

  • Page 54: Photodiode Feedback Connections

    Chapter 4 Laser Diode Driver Module Operation NOTE Although the intermittent contact circuitry works well in helping to protect the laser diode, there is still a danger in having poor connections, as no circuit can protect completely. NOTE It is possible with some modes of modulation, especially square-wave, to trigger the intermittent contact circuit and cause a shut-down.

  • Page 55: Figure 22 - Common Laser Cathode / Photodiode Cathode

    Chapter 4 Laser Diode Driver Module Operation Output 6500 module Bias L.D. P.D. Earth Ground Figure 22 - Common Laser Cathode / Photodiode Cathode Output 6500 module Bias L.D. P.D. Earth Ground Figure 23 - Common Laser Cathode / Photodiode Anode Output 6500 module Bias...

  • Page 56: Grounding Consideration

    4.5.1 Quick Start After the power-on sequence is complete, the 6000 goes to the Master display. To set up a laser module, press the MENU button, then the Modules soft key, then select the laser driver, and finally, the Setup soft key. At this point, the display shows all laser parameters.

  • Page 57: Laser Setup Screen

    4.5.3 Laser Setup Screen The laser setup screen for the Model 6000 is shown in Figure 27 and described in detail below. The Model 6000M and 6000MF laser setup screens are shown in Figure 28. Channel B of the MOPA module is shown here to illustrate every element.

  • Page 58: Figure 27 - Laser Setup Screens

    Chapter 4 Laser Diode Driver Module Operation Mode → → → → Io Lim = 260 mA Vcomp 6.989 V Im Lim = 2500 uA → → → → Po Lim = 1500 mW Tol T = 1.000 S Tol Iop= 10.0 mA IntCont= Disable...

  • Page 59: Mode

    250 mA 6540M: Chan B (AMP) Vcomp 5.000 V → → → → Im Lim = 10000 uA Po Lim = 6000 mW 6540M: Chan B (AMP) Tol T = 0.000 S Tol Iop= 0.0 mA 6540M: Chan B (AMP) PD Resp= 0.00...

  • Page 60: Bandwidth

    Chapter 4 Laser Diode Driver Module Operation In the Io mode, the active set point is the actual drive current. A set point of 1000 mA will cause the module to drive 1000 mA through the laser diode, assuming the Io Lim is set at or above 1000 mA.

  • Page 61: Im Lim

    Chapter 4 Laser Diode Driver Module Operation 4.5.3.6 Im Lim The photodiode current limit is a software monitored limit on the current delivered from the photodiode. Because this limit is a software monitored limit, shutdown can occur up to a second after the condition is true. The oscillator channel of the MOPA module does not support this setting.

  • Page 62: Pd Zero

    Chapter 4 Laser Diode Driver Module Operation 4.5.3.11 PD Zero The PD Zero element is the photodiode offset that is removed from the photodiode read back before any values are displayed, and conversely, is added to any photodiode set point. The photodiode offset is a combination of any dark current or stray light picked up while the laser is off.

  • Page 63: Temperature Controller Operation

    C H A P T E R Temperature Controller Operation Temperature Controller (TEC) Module The Temperature Controller is a precision thermoelectric cooler control module that is an integral part of the Model 6000 Controller. Features of module include: • Close-case calibration •...

  • Page 64: Tec Grounding Consideration

    5.4.1 Quick Start After the power-on sequence is complete, the 6000 goes to the Master display. To set up a TEC module, press the MENU button, then the Modules soft key, then select the TEC module, and finally, the Setup soft key. At this point, the display shows all TEC parameters.

  • Page 65: Tec Setup Screen

    Sensor, and RTD cable null can be selected. LINK - Pushing the adjacent soft key activates the linking screen. This establishes any interaction that may be desired between different modules. See the Model 6000 main manual for a description of the linking process.

  • Page 66: Sensor

    This mode holds the TEC at a constant temperature based on feedback from the sensor in the TEC mount, using “Ts=” and “T=” variables. In this mode, the 6000 uses a control loop comparing the sensor input to the temperature set point, driving the I current positive or negative to reach and maintain that set point.

  • Page 67: Constant Current Mode (Const Ite )

    Chapter 5 Temperature Controller Operation are primarily intended for users who know a sensor set point in “sensor” units, not in ºC. I current is also displayed in these modes. 5.4.3.2.3 Constant Current Mode (Const I Unlike the modes above, the Const I mode allows the operator to explicitly set the amount and direction of current flow through the TEC, using “Is=”...

  • Page 68: Limits

    Chapter 5 Temperature Controller Operation Fast. The number actually defines the proportional loop gain. The slow/fast suffix indicates the speed at which the integrator’s output increases. The slow setting allows for larger masses or greater distance between the sensor and the thermo-electric cooler by slowing the speed of the integrator.

  • Page 69: C1, C2, C3, And Ro

    Chapter 5 Temperature Controller Operation range from 0.001 seconds to 50 seconds. The Tol Temp value is displayed in ºC (the most common usage), and can range from 0.01 to 10.00. If at any time it goes outside the tolerance range, the time restarts at zero. As an example, if the Tol Time is set to 5 seconds, the Tol Temp is set to 0.2ºC, and the temperature set point was 25.0ºC, the TEC module would have to stay within 24.8ºC and 25.2ºC to be within tolerance.

  • Page 70: Thermistor And Thermistor Current Selection

    Thermistor resistance and voltage are related through Ohm's Law (V = I x R). The 6000 supplies current to the thermistor, either 10 µA or 100 µA , and as the resistance changes a changing voltage signal is available to the thermistor inputs of the 6000.

  • Page 71: Temperature Resolution

    Temperature Resolution You must also consider measurement resolution since the resolution decreases as the thermistor temperature increases. The 6000 uses an A/D converter that has a maximum resolution of about 76 µV. The microprocessor converts this digital number to resistance, stores this resistance, then converts it to a temperature using the Steinhart-Hart equation, and stores this temperature.

  • Page 72: Selecting Thermistor Current

    If you require a different temperature range or the accuracy you need can't be achieved with either current setting, select another thermistor. Thermistor temperature curves, supplied by the manufacturer, show the resistance verses temperature range for many other thermistors. Newport, Inc. will also offer help for your specific application.

  • Page 73: The Steinhart-Hart Equation

    Chapter 5 Temperature Controller Operation 5.4.4.1.6 The Steinhart-Hart Equation The Steinhart-Hart equation is used to derive temperature from the non-linear resistance of an NTC (Negative Temperature Coefficient) thermistor. The following section contains an explanation of the Steinhart-Hart equation and the values of these constants for some common thermistors.

  • Page 74: Table 6 - Comparison Of Curve Fitting Equations

    Chapter 5 Temperature Controller Operation Figure 32 - Thermistor Resistance versus Temperature ----------Error T (°C)---------- T Actual First Order Third Order Fit. Eq. 2 Fit. Eq. 1 97072 -20.00 -0.00 -0.32 55326 -10.00 0.00 -0.06 32650 0.00 -0.00 0.09 19899 10.00 -0.00 0.15...

  • Page 75: Table Of Constants

    5.4.4.1.7 Table of Constants We have listed some common thermistors and included the appropriate calibration constants for the temperature range -20 °C to 50 °C in Table 7. The Model 6000, by default, uses the BetaTHERM 10K3A2 thermistor values. Manufacturer BetaTHERM 10K3 1.129241...

  • Page 76: Ad590 And Lm335

    = C1 + (C2 * T ), is then computed, where C1 and C2 are the constants stored in the 6000 for the AD590. The AD590 grades of tolerance vary, but typically without adjusting C1 and C2, the temperature accuracy is ±1°C over its rated operating range.

  • Page 77: Lm335 Sensor

    , which is displayed by the 6000 is calculated as follows: = C1 + (C2 * T where C1 and C2 are the constants stored in the 6000 for the LM335. When the LM335 is calibrated to 25°C, C1 = 0 and C2 = 1, and the temperature...

  • Page 78: Determining C1 And C2 For The Ad590 And Lm335

    It is used to determine the zero offset of the device, and it assumes that the gain (slope) is known. Allow the 6000 to warm up for at least one hour. Select the desired sensor type in the setup menu.

  • Page 79: Rtd Sensors

    The accuracy of this procedure depends on the accuracy of the externally measured temperature. It is used to determine the zero offset of the device and the gain (slope). Allow the 6000 to warm up for at least one hour. Select the desired sensor type in the setup menu.

  • Page 80: Rtd Constants

    Chapter 5 Temperature Controller Operation 5.4.4.3.1 RTD Constants The constants entered for an RTD depend on the type of curve it has. Table 8 shows three standard types. Curve (Ω Ω Ω Ω /Ω Ω Ω Ω /° ° ° ° C) Laboratory .003926 3.9848x10...

  • Page 81: Maintenance

    Do not attempt to remove the cover. Fuse Replacement The fuses are accessible on the back panel of the 6000. Before replacing a fuse, turn power off and disconnect the line cord. Use only the fuses indicated below.

  • Page 83: Calibration

    0°C to 40°C. 7.1.2 Warm-Up The 6000 should be allowed to warm up for at least 1 hour before calibration. Laser Calibration This chapter describes how to calibrate the 6500 Series laser modules. 7.2.1 Recommended Equipment Recommended test equipment for calibrating the module is listed in Table 1.

  • Page 84: Drive Current Load Resistor Selection

    Chapter 7 Calibration 7.2.2 Drive Current Load Resistor Selection Laser Drive Current Resistor 30 Ω, 2 W 200 mA 10 Ω, 5 W 500 mA 5 Ω, 10 W 1,000 mA 2 Ω, 25 W 3,000 mA 1 Ω, 50 W 6,000 mA Table 10 - Drive Current Load Resistor Selection 7.2.3...

  • Page 85: Remote Operation Current Source Calibration

    6000 will apply a new current equal to approximately one-fourth (¼) the previous set point. The 6000 will be ready to receive the second current value when, after a LAS:CAL:LDI? query is sent, the response from the 6000 is "1".

  • Page 86: Local Operation I

    P modes. The user enters the actual value of the current, as measured by an external DMM. The 6000 then automatically calibrates the laser feedback circuits. MOPA modules have photodiode feedback circuits on channel B only. The I calibration circuit is diagrammed below.

  • Page 87: Remote Operation I

    Chapter 7 Calibration where V is the measured voltage across the resistor, and R is the measured load resistance. Go to the single module display by first pressing the MENU button, then the Modules soft key, then the slot soft key that corresponds to the module to be calibrated.

  • Page 88: Local Operation Laser Voltage Measurement Calibration

    After a few seconds, the 6000 will be ready for the actual photodiode current to be entered via the LAS:MDI command. The measured value of the current should not be entered until the 6000 is ready to receive it. The 6000 will be ready to receive the current value when, after a LAS:CAL:MDI? query is sent, the response from the 6000 is "1".

  • Page 89: Remote Operation Laser Voltage Measurement Calibration

    6000 will apply a new current equal to approximately one-fourth (¼) the previous set point. The 6000 will be ready to receive the second voltage value when, after a LAS:CAL:LDV? query is sent, the response from the 6000 is "1".

  • Page 90: Tec Calibration

    6000 leaves the current calibration mode. If, at any time prior to the second LAS:LDV, a command other than LAS:LDV or LAS:CAL:LDV? is sent to the 6000, the 6000 will cancel the calibration mode and then process the command(s).

  • Page 91: Remote Operation Thermistor Calibration

    TEC:R <nrf value> command. If, at any time prior to TEC:R, a command other than TEC:R or TEC:R? is sent to the 6000, the 6000 will cancel the calibration mode and then process the command(s). Once the TEC:R value is sent, the OPC? query may be used to determine when the calibration is completed.

  • Page 92: Local Operation Ad590 Sensor Calibration

    Enter the TEC:SEN 4 and TEC:CAL:SEN to select the AD590 sensor and enter sensor calibration mode. The 6000 will be ready to receive the current value when, after a TEC:CAL:SEN? query is sent, the response from the 6000 is “1”.

  • Page 93: Local Operation Lm335 Sensor Calibration

    Enter the TEC:SEN 3 and TEC:CAL:SEN to select the LM335 sensor and enter sensor calibration mode. The 6000 will be ready to receive the voltage value when, after a TEC:CAL:SEN? query is sent, the response from the 6000 is "1".

  • Page 94: Local Operation Rtd Calibration

    <nrf value>) via the TEC:R <nrf value> command. If, at any time prior to TEC:R, a command other than TEC:R or TEC:R? is sent to the 6000, the 6000 will cancel the calibration mode and then process the command(s). Once the TEC:R value is sent, the OPC? query may be used to determine when the calibration is completed.

  • Page 95: Rtd Lead Resistance Calibration (Offset Null)

    Chapter 7 Calibration 7.3.10 RTD Lead Resistance Calibration (Offset Null) Because the RTD sensor reflects changes in temperature with small changes in resistance, even a small lead resistance (resistance caused by the wire running between the TEC module and the RTD sensor) can cause significant temperature offset.

  • Page 96: Remote Operation Ite Current Calibration, Single Channel Tec

    TEC:CAL:ITE? query is sent, a “1” is returned. Input the actual current (as an <nrf value>) via the TEC:ITE <nrf value> command. The 6000 will then drive the current to 25% of the initial set point. The 6000 will be ready to receive the second measured current value when, after a TEC:CAL:ITE? query is sent, a “1”...
  • Page 97 <nrf value> command. If, at any time prior to the last TEC:ITE, a command other than TEC:ITE or TEC:ITE? is sent to the 6000, the 6000 will cancel the calibration mode and then process the command(s). Once the TEC:ITE value is sent, the OPC? query may be used to determine when the calibration is completed.

  • Page 99: Factory Service

    2. Instrument serial number (On rear panel) 3. Description of the problem. If the instrument is to be returned to Newport Corporation, you will be given a Return Materials Authorization (RMA) number, which you should reference in your shipping documents as well as clearly marked on the outside of the shipping container.
  • Page 101 Service Form Newport Corporation USA Office: 949/863-3144 FAX: 949/253-1800 Name RETURN AUTHORIZATION # Company (Please obtain prior to return of item) Address Country Date P.O. Number Phone Number Item(s) being returned: Model # Serial # Description Reason for return of goods (please list any specific problems)
  • Page 102 Where is measurement being performed? (factory, controlled laboratory, out-of-doors, etc.) What power line voltage is used? Variation? Frequency? Ambient Temperature? Any additional information. (If special modifications have been made by the user, please describe below)

  • Page 103: Error Messages

    TEC Control Errors E-500 to E-599 Laser Control Errors Table 12 contains all of the error messages which may be generated by the 6000. Not all of these messages may be displayed. Some refer to GPIB activities only, for example.
  • Page 104 Error Messages Error Explanation Code E-301 A response message was ready, but controller failed to read it. E-302 6000 is talker, but controller didn't read entire message. E-303 Input buffer overflow E-304 Output buffer overflow E-305 Parser buffer overflow E-402 Sensor open disabled output.
  • Page 105 Chapter 9 Error Messages Error Explanation Code on and the sensitivity set to zero to start. E-521 Modulation select change shutdown laser outputs (MOPA only) E-531 Laser link condition forced output on E-532 Laser link condition forced output off E-533 Attempted to select non-laser channel for laser operation.

  • Page 107: Specifications

    C H A P T E R Specifications 10.1 Laser Diode Driver (LDD) Modules Specifications 6505 6510 6530 6560A Laser Output Output Current Range (mA) 0 to 500 mA 0 to 1,000 mA 0 to 3,000 mA 0 to 6,000 mA Output Current Resolution (mA) (16-bit) 0.0076 0.0153...

  • Page 108: Mopa Laser Diode Driver Module

    PD Resp. Resolution (µA/mW) 0.01 0.01 0.01 0.01 Optical Power Range (mW) 0.00 to 500.00 0.00 to 1000.0 0.00 to 3000.0 0.00 to 6000.0 Optical Power Resolution (mW) 0.01 0.01 0.01 0.01 10.2 MOPA Laser Diode Driver Module Specifications Oscillator...
  • Page 109 Chapter 10 Specifications PD Resp. Resolution (µA/mW) 0.01 Optical Power Range (mW) 0.00 to 4000.0 Optical Power Resolution (mW) 0.01...

  • Page 110: Temperature Controller (Tec) Specifications

    Chapter 10 Specifications 10.3 Temperature Controller (TEC) Specifications Specifications 6000 and 6000M 6000MF TEC Output Maximum Current 4 Amps 2.5 Amps Maximum Voltage 8 Volts 18 Amps Typical Power 32 Watts 45 Watts TE Current Resolution (mA) 0.153 0.153 TE Current Accuracy (mA) ±...

  • Page 111: Mainframe And General Specifications

    Brightness and Contrast (contrast optimizes viewing angle) Channel Active For Model 6000, Green LDD LED indicates that Laser Diode output is on. Green TEC ACTIVE LED indicates that TEC output is on. For Model 6000M and 6000MF, Green OSC LED and AMP LED indicate the oscillator and amplifier are on, respectively.

Table of Contents