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New Focus Swept-Wavelength Tunable Laser Source TLB 6500 Series User Manual

External-cavity tunable diode lasers
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Summary of Contents for New Focus Swept-Wavelength Tunable Laser Source TLB 6500 Series

  • Page 1 (217) 352-9330 | Click HERE Find the Newport / New Focus 6528-LN at our website:...
  • Page 2 U S E R ’ S G U I D E Swept-Wavelength Tunable Laser Source ™ External-Cavity Tunable Diode Lasers Model Series TLB 6500 U.S. Patent #5,319,668 & Other Patents Pending Use of controls or adjustments, or performance of procedures other than those specified herein, may result in hazardous radiation exposure.
  • Page 3 Warranty New Focus, Inc. guarantees its lasers to be free of material and workmanship defects for one year from the date of shipment. This warranty is in lieu of all other guarantees expressed or implied and does not cover incidental or consequential loss.

  • Page 4: Table Of Contents

    Contents User Safety Introduction ........7 Laser Safety .
  • Page 5 Appendix C: Specifications ..... . . 93 Appendix D: Cleaning Procedures....101 6 • Contents NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 6 ™ Swept-Wavelength Tunable Laser Source • 7 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 7 8 • NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 8: User Safety

    User Safety Introduction Your safe and effective use of this product is of utmost importance to us at New Focus. Please read the following laser safety information before attempting to operate the laser. Laser Safety The laser radiation emitted from this unit may be harmful.
  • Page 9 The following figures show the location of the warning label and certification label used with this product. Please be aware of them and use caution when working with the laser. 10 • User Safety NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 10 Figure 1: Aperature label on the front of the laser Figure 2: Certification and Caution! Risk of electrical shock! Do not remove cover. warning labels on Refer servicing to qualified service personnel. the back of the laser Alternating Current Protective Conductor Terminal Model Number: WARNING...

  • Page 11: Using The Safety Interlock

    The circuit carries 15-V DC. For the exact location of the safety interlock connector, see “Controller Back Panel and Tunable Laser Cavity Connections” on page 15. 12 • User Safety NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 12: Getting Started

    If parts are missing or you notice any signs of damage, such as dented or scratched covers, or broken knobs, please contact New Focus immediately. Save the shipping container and packing material for future shipping needs.
  • Page 13 Make sure the laser output is blocked or attached to an optical Note: Note: fiber and the fiber is connected to an appropriate receptacle on the other end. 14 • Getting Started NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 14 Controller Back Panel and Tunable Laser Cavity Connections Figure 4: 6 7 8 Controller WARNING back panel For continued protection against fire hazard,replace only with the Model Number: same type and rating of fuse. Input VAC Fuse 100 - 120 5.0 A T Serial Number: 220 - 240...

  • Page 15: Setting Up The Laser

    FC connector. The laser output comes to the front panel through a fiber with an optical isolator of 30 dB, preventing optical feedback into the laser cavity. 16 • Getting Started NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 16: Turning On The Power

    Turning on the Power The Swept-Wavelength Tunable Laser Source can operate at 100 – 120V (±10%) AC @ 50/60 (±10%) Hz or 200 – 240V (±10%) AC @ 50/60 (±10%) Hz, Pollution degree 2, Installation Category II. The input AC voltage is selected automatically by the universal AC power module.
  • Page 17 18 • Getting Started NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 18: General Operation

    General Operation Overview The Swept-Wavelength Tunable Laser Source is a stable, narrow- linewidth source of tunable light. The laser operates in four modes: Sweep Mode, Step-Scan Mode, Track Mode and Program Mode. Use it in Track mode to operate it at a set wavelength. In Sweep Mode, it is capable of fast and extremely linear scans between the start and stop wavelengths that you specify.

  • Page 19: Understanding The Laser's Operating Modes

    • Display Laser Information • Wavelength Offset and Trim (calibration) • Set Preferences • Set Language • Select Port 20 • General Operation NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 20 The System icon spins anytime the system is busy. When this icon stops spinning, the system is ready to process another request. Logging Into the System When you first power on the laser and the system initializes (about 30 seconds), the welcome screen appears with the spinning System icon in the lower left portion of the screen, indicating that the system is warming up.
  • Page 21 Use the large green Enter pad to accept the value you’ve entered. Figure 7: The touch-screen > keypad < – 22 • General Operation NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 22 Using the Selection Knob to Enter Data You can enter or edit numeric data using the Selection knob, located on the right side of the front screen. To use the Selection knob: 1. Turn the knob clockwise or counterclockwise to navigate through the screen.

  • Page 23: Performing A Wavelength Sweep (Sweep Mode)

    2. Enter the start wavelength value and choose Enter when you are finished.. You cannot change the start or stop wavelengths during a sweep. Note: Note: 24 • General Operation NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 24 Setting the Stop Wavelength To set the wavelength at which the sweep will end: 1. Select the Stop Wavelength icon. The keypad appears. 2. Enter the stop wavelength value and choose Enter when you are finished.. You cannot change the start or stop wavelengths during a scan. Note: Note: Setting the Scan Speed...
  • Page 25 “ramps” to the beginning and end of the scan range which allow the motor to get up to speed before the specified start wavelength and to 26 • General Operation NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 26 slow down after the specified stop wavelength. For example, if the ramp is enabled and you set a scan to run from 1500–1550 nm, the laser will actually start at 1498 nm and run through 1552 nm. The laser ships with the ramp feature turned off. To enable the wavelength ramp, select the Wavelength Ramp icon.

  • Page 27: Performing A Step-Scan

    To perform a step-scan, select the Step-Scan Mode icon. The Step-Scan Mode screen appears. From this screen, you can set the parameters for your step-scan. 28 • General Operation NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 28 Figure 9: The Step- 1500.0000 1600.0000 Scan Mode screen 1.50 dBm 10.10 Setting the Start Wavelength To set the wavelength at which the step-scan will begin: 1. Select the Start Wavelength icon. The keypad appears. 2. Enter the start wavelength value and choose Enter when you are finished.
  • Page 29 1. Select the Pause Time icon. The keypad appears. 2. Enter the dwell time value and choose Enter when you are finished. 30 • General Operation NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 30: Scanning Wavelengths In Track Mode

    Turning Laser Diode On or Off To turn on the current to the laser diode, select the Laser Diode icon. When the current is off, this icon will display a grey star. When the current is on, this icon will display a green star. The icon will flash during the five-second safety delay before the current is activated.
  • Page 31 5. The system will store the wavelength values you enter in a list. 6. To switch between wavelengths, click the wavelength values in the list. 32 • General Operation NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 32 Setting the Laser Power To set the power at which the laser should scan the given wavelength: 1. Select the Set Power Level icon. The keypad appears. 2. Enter the laser power level value and choose Enter when you are finished.

  • Page 33: Scanning Wavelengths In Program Mode

    2. On this screen you can Add, Edit, or Delete Wavelength values from the Program List. When you have finished creating your wavelength list, select the CheckMark icon. 34 • General Operation NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 34 Figure 12: The Wavelength List screen Adding Wavelength Values to the List Select the Add a Wavelength icon. The keypad appears. Enter the wavelength value and choose Enter when you are finished. The first wavelength value you enter will be the “start” wavelength in the list. Each wavelength that you add after that will be added sequentially in the list.
  • Page 35 flash during the five-second safety delay before the current is activated. The icon will remain green while current is flowing to the laser diode. 36 • General Operation NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 36: Configuring The System

    Starting the Sweep Once you have set up the Program List, begin the sweep by selecting the Start Test icon. Stopping or Aborting a Sweep 1. To stop an ongoing sweep, select the Reset icon. The laser will finish the current sweep and return to the Start wavelength. 2.
  • Page 37 6500 Extenal-Cavity Tunable Diode Lasers. All specifications in Appendix C are guaranteed for Constant Power Mode. Advance notification is required if Constant Current Mode is preferred. 38 • General Operation NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 38 From the Preference screen, select the Constant Power icon to set laser to Constant Power Mode. The keypad appears. Enter password and choose Enter when you are finished. Select the green CheckMark icon to finish. Turn laser diode off before switching modes. Note: Note: Constant Power Mode will display value in dBm or mW.

  • Page 39: Monitoring Swept Scans

    You should not use the Laser Sync Output as a trigger, since the error is Note: Note: usually greater than 1 ms. 40 • General Operation NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 40: Modulating The Laser Output

    Modulating the Laser Output Modulate the laser current (amplitude) using an externally generated low-level signal. Connect the line for the input signal to the Current Modulation connector on the back of the controller. Make sure the signal conforms to the following specifications: Current Modulation Input Guidelines (DC-coupled) Connector Type Max.

  • Page 41: Reading An Input Signal

    Detector Input Guidelines Connector Type Voltage Range 0 V to +10 V Input Frequency DC–1 kHz Impedance 51 kΩ 42 • General Operation NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 42: Computer Control

    Computer Control Introduction The Swept-Wavelength Tunable Laser Source can be operated remotely through the parallel IEEE-488 (GPIB) interface, the serial RS-232 interface, or the Ethernet interface. Most computers have RS-232 interfaces built in. In order to use the IEEE-488 interface, a special card or interface box is necessary.
  • Page 43 Enter button. On the Select Port screen, choose the green CheckMark icon. 44 • Computer Control NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 44: Using The Rs-232 Interface

    Using the RS-232 Interface The RS-232 9-pin connector on the back of the controller allows remote operation through an RS-232 serial connection. To use the RS-232 interface, attach a 3-wire, straight-through RS-232 cable with a male D-sub 9 connector to the RS-232 port on the back of the laser. The cable should be less than 50-feet long.

  • Page 45: Using The Ethernet Interface

    Ethernet screen, you can automatically configure the IP Address, SubnetMask, and Gateway Address.The Obtain IP Address Via DHCP button is red when it is enabled. 46 • Computer Control NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 46: Restoring Local Control

    6. You must reset the laser once the Ethernet setting has been changed. Manually Configuring the Ethernet Interface 1. To Manually configure, disable DHCP lookup. Select the Obtain IP Address Via DHCP button. This button is grey when it is disabled. 2.

  • Page 47: Understanding The Command Types

    Only one command can be issued per line. For example, if the controller receives WAVE 1550;*IDN?, it will change the wavelength to 1550, but the Identification Query will be ignored. 48 • Computer Control NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 48 Laser-Controller Responses All commands evoke a response from the driver (set commands return an “OK” when executed). If you are using RS-232, the response is sent immediately; with IEEE-488 and Ethernet, the response is loaded into the output buffer (a first-in, first-out buffer with a capacity of 5 messages).

  • Page 49: Conventions

    • Commands all begin with an asterisk character, “*”,or a colon, “:”. These characters are not optional. 50 • Computer Control NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 50: Command Summary

    Command Summary System Status and Maintenance Syntax Command Page Identification Query *IDN? Operation Complete Query *OPC? Set Control Mode (Remote/Local) :SYST:MCON <INT|EXT> Query Control Mode :SYST:MCON? Sense Voltage from Detector Input :SENS:VOLT:AUX Starts a Maintenance Cycle :OUTP:SCAN:MAIN Set Instrument Password :SYST:PASS Power Commands Syntax...
  • Page 51 Set delay between steps of a step scan Query Dwell Time :WAVE:DWEL? Set Starting Wavelength (nm) :WAVE:STAR <value> Query Starting Wavelength :WAVE:STAR? 52 • Computer Control NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 52 Syntax Command Page Set Stopping Wavelength (nm) :WAVE:STOP <value> Query Stopping Wavelength :WAVE:STOP? Set Step Size for Step Scans (nm) :WAVE:STEP <value> Query Step Size for Step Scans :WAVE:STEP? Set Trigger A (nm) :WAVE:TRIG:A <value> Query Trigger A :WAVE:TRIG:A? Set Trigger B (nm) :WAVE:TRIG:B <value>...
  • Page 53 (1) These commands are password protected. In order to access or set any parameter of these commands., you must send the system password before sending these commands. 54 • Computer Control NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 54: Command Definitions

    firmware revision numbers for the laser cavity and controller. Example *IDN? ⇒ New Focus Inc., 6528, 02149, H1.67, C1.00 (Manufacturer = New Focus, Model= 6528, Serial Number=02149, Motor Firmware Rev. 1.67, Con- troller Firmware Rev. 1.00) Operation Complete Query...
  • Page 55 Example :SYST:MCON INT ⇒ OK (The laser switches to remote mode and the front screen displays the Remote icon 56 • Computer Control NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 56 Query Control Mode Syntax :SYSTem:MCONtrol ? Reads the Control Mode. Description “0” for remote mode and “1” for local mode Response Example Determine if the laser is in local or remote control mode: :SYST:MCON ? ⇒ 1 (The laser is in local control mode.) Sense Voltage from Detector Input Syntax :SENSe:VOLTage[:LEVel]:AUXiliary...
  • Page 57 0 or OFF turns the laser off, 1 or ON turns the laser on. Turn off power to the laser: Example :OUTP 0 ⇒ OK 58 • Computer Control NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 58 Query Laser Power (On/Off ) Syntax :OUTPut ? Reads whether or not the laser power is on. Description “0” for laser current off and “1” for laser current on Response Example Determine if the laser current is on or off: :OUTP ? ⇒...
  • Page 59 0.40: :POW:TRIM 0.40 ⇒ OK 60 • Computer Control NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 60 Query Power Trim Syntax [:SOURce]:POWer:TRIM ? Checks the trim applied the laser output power. The Description trim is used to calibrate the laser to an external power meter. Response “x.xx” Example :POW:TRIM ? ⇒ 0.40 Set Power Unit Type Syntax [:SOURce]:POWer:UNIT <dBm|mW>...

  • Page 61: Set Wavelength (Nm)

    Set the wavelength to 1525 nm. :WAVE 1525 ⇒ OK (The wavelength starts changing at the maximum rate until it reaches 1525 nm.) 62 • Computer Control NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 62: Activate Track Mode And Move To

    Activate Track Mode Syntax :OUTPut:WAVElength <value> Switches the laser to track mode and drives the laser Description to the specified wavelength. If the value is out of range, the laser returns an out of range error and no other action is taken. Note: see also [:SOURce]:WAVElength <val|MIN|MAX>...

  • Page 63: Set Wavelength Unit Type

    0.0001 nm. If the resolution is set to LOW, the laser will display 0.001nm. Argument HI or LOW Set the wavelength resolution to high: Example :WAVE:RES HI ⇒ OK 64 • Computer Control NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 64: Query Wavelength Resolution

    Query Wavelength Resolution Syntax [:SOURce]:WAVElength:RESolution ? Description Reads the Wavelength resolution, HI or LOW. If the resolution is set to HI, the laser will display 0.0001 nm. If the resolution is set to LOW, the laser will display 0.001nm. Example :WAVE:RES ? ⇒...

  • Page 65: Set Wavelength Offset (Nm)

    Units: nanometers (nm). Example :WAVE:OFFS ? ⇒ − 0.03000 (The wavelength has been offset by -0.030 nm from the factory-calibrated setting.) 66 • Computer Control NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 66: Switch To Scan Mode

    Scan Commands Switch to Scan Mode Syntax :OUTPut:TRACk OFF Switches the laser into scan mode and sets the Description wavelength to the start wavelength so it is ready to start a scan. Note: If the wavelength ramp is enabled, the laser will be set to the start wavelength minus the 2-nm ramp.

  • Page 67: Set Scan Speed (Nm/Sec)

    Response Units: nanometers per second (nm/s). Example :WAVE:SLEW ? ⇒ 22.00 (The laser is set to scan at 22 nm/s.) 68 • Computer Control NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 68: Set Pause (Ms)

    Set Pause Syntax [:SOURce][:WAVElength]:PAUSe <val> Sets a delay between consecutive swept scans. The Description laser scans from the start to the stop wavelength at the set scan rate, resets to the start wavelength, and then pauses before performing the next scan. x.x (will round to nearest integer) Argument Units: milliseconds (ms).

  • Page 69: Set Dwell Time(Ms)

    Response Units: milliseconds (ms). Example :WAVE:DWEL ? ⇒ 3000 (The laser is set to pause for 3000 ms between steps.) 70 • Computer Control NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 70: Set Starting Wavelength (Nm)

    Set Starting Wavelength for Wavelength Scans Syntax [:SOURce]:WAVElength:STARt <val> Sets the starting wavelength for wavelength scans. Description Note: If the wavelength ramp is enabled, the laser will reset to 2 nm before the start wavelength. See page 26 for more on the ramp, or page 76 for information on enabling or disabling the ramp.

  • Page 71: Set Stopping Wavelength (Nm)

    Units: nanometers (nm). Example :WAVE:STOP ? ⇒ 1560.0000 (Scans will end at 1560 nm, or at 1562 if the ramp is enabled.) 72 • Computer Control NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 72: Set Step Size For Step Scans (Nm)

    Set Step Size Syntax [:SOURce]:WAVElength:STEP <value> Sets the change in wavelength for each step of a step Description scan. x.xxx Argument Range: The value should be less than the difference between the scan’s start and stop wavelengths. The maximum value is the difference between the laser’s minimum and maximum wavelengths.

  • Page 73: Set Trigger A (Nm)

    Queries the trigger A wavelength. Description “x.xxxx” Response Units: nanometers (nm). Example :WAVE:TRIG:A ? ⇒ 1552.6550 (Scans will trigger a pulse at 1552.655 nm.) 74 • Computer Control NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 74: Set Trigger B (Nm)

    Set Trigger B Syntax [:SOURce]:WAVElength:TRIGger:B <value> Sets a wavelength that will send an output pulse to Description the controller’s Trigger B output during a wave- length scan. The rising edge of the pulse corre- sponds with the trigger wavelength. See page 25 for trigger specifications.

  • Page 75: Enable/Disable Wavelength Ramp

    “1” for enabled, “0” for disabled. Response Example :WAVE:RAMP ? ⇒ 1 (The ramp is enabled.) 76 • Computer Control NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 76: Start Scanning

    Start Scanning Syntax :OUTPut:SCAN:STARt[ <value>] Begins a wavelength scan. The argument to this Description command determines the type of scan and, for con- tinuous mode, the number of scans. The *OPC? command will return 0 until the stop wavelength is reached on the last scan. x (or no argument) Argument Range: -4 to 10,000,000.

  • Page 77: Reset Scan (Finish Scan And Reset)

    If the laser is in track mode, it will switch to scan mode. Cancel the current scan and reset immediately to Example the start wavelength: :OUTP:SCAN:ABOR ⇒ OK 78 • Computer Control NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 78: Set Trigger Mode To Software Enabled

    Set Trigger Mode to Software Enabled Syntax :OUTPut:SCAN:TRIGger Enable trigger mode and begin a scan using exter- Description nal software. See also SCAN:TRIG[1]. Begin a scan in trigger mode using external soft- Example ware: :OUTP:SCAN:TRIG ⇒ OK Query Trigger Mode State Syntax [:SOURce]:SCAN:TRIGger ? Reads the state of trigger mode.

  • Page 79: Query Diode Current

    0: Constant Power Mode; Argument 1: Constant Current Mode Example :SYST:LCON? ⇒ 1 (Laser was set to Constant Current Mode.) 80 • Computer Control NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 80 Read, Reset and Clear Latest Error Flag Syntax :SYSTem:ERRor? Reads latest error, resets the error and clears the Description error flag. Example :SYST:ERR? ⇒ 0 (No error found.) List Errors Syntax :SYSTem:ERRor:LOG? Lists the last 16 errors from the latest to the oldest. Description Example :SYST:ERR:LOG?
  • Page 81 82 • Computer Control NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 82: Principles Of Operation

    Principles of Operation Overview Traditional diode-laser technology provides high reliability, high electrical efficiency, and a wide range of available wavelengths in a compact package. By using an external cavity built around a diode laser, the Swept-Wavelength Tunable Laser Source provides enhanced performance compared to an off-the-shelf diode laser, guaranteeing single-mode operation with narrow linewidth and precise wavelength tuning.
  • Page 83 The magnitude of the effect is diode dependent, but is typically 25–150 MHz/mA. 84 • Principles of Operation NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 84 References T. Day, F. Luecke, and M. Brownell, “Continuously tunable diode lasers,” Lasers and Optronics, pages 15–17, June 1993. K. C. Harvey and C. J. Myatt, “External-cavity diode laser using a grazing-incidence diffraction grating,” Optics Letters, vol. 16, pages 910– 912, 1991.
  • Page 85 86 • Principles of Operation NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 86: Troubleshooting

    Troubleshooting Front-Screen Controls Won’t Work If the front-screen controls aren’t working, the laser may be in remote (computer-control) mode. Select the Remote icon on the front screen to restore local control. If this does not restore control, cycle the power off and then on.

  • Page 87: Wavelength Not Set To The Start Wavelength

    Power Display Flashes In track mode, a flashing power display indicates that the set power is out of range for the current wavelength. 88 • Troubleshooting NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 88: Temperature Display Flashes

    (time will vary depending on the temperature of the previous environment). If this problem persists, contact New Focus technical support. Triggers are Inconsistent The normal timing jitter of the triggers is within 150 µs. Due to timing issues relating to the start wavelength, the trigger wavelengths, and the scan speed, you may encounter trigger instability greater than the jitter.

  • Page 89: Calibrating The Laser

    The following list describes the error codes. Switching the laser controller off and then back on can clear some of these errors. If the error persists, contact New Focus for assistance. Error Description Key Jam. Motor temperature too high. Laser cavity temperature too high.

  • Page 90: Customer Service

    If your laser does require service, repair, or calibration, please call for a Return Authorization Number before shipping the unit to New Focus. There are no user-serviceable parts inside the laser. Unauthorized opening of the laser will void the warranty and may result in burns, electric shock, misalignment of the laser cavity, and/or irreparable damage to the internal components.
  • Page 91 92 • Customer Service NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 92: Appendices

    Appendices Appendix A: Physical Specifications Figure 14: Front view and back view of the WARNING For continued protection against fire hazard,replace only with the same type and rating of fuse. laser Model Number: Input VAC Fuse 100 - 120 5.0 A T Serial Number: 220 - 240 2.5 A T...

  • Page 93: Appendix B: Rs-232 Connector Wiring

    9-Pin D-Connector Not Connected Data Received by laser Data Transmitted from laser Not Connected Ground Digital Ground Line 6–9 Not Connected 94 • Appendices NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 94: Appendix C: Specifications

    Appendix C: Specifications Specification TLB-6500-H-CL TLB-6500-L-CL Tuning Range 1520–1620 nm 1520–1620 nm Absolute Wavelength 30 pm 30 pm Accuracy Mode-Hop Free Mode-Hop Free Mode-Hop Performance 0.1 pm 0.1 pm Wavelength Resolution <±2.5 pm <±2.5 pm Wavelength Repeatability < 5 pm <...
  • Page 95 Viewing the laser output with certain optical instruments (for example, eye loupes, magnifiers, and microscopes) within a distance of 100 mm may pose an eye hazard. 96 • Appendices NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 96 E+S Band Laser Specification TLB-6500-H-ES TLB-6500-L-ES Tuning Range 1425–1525 nm 1425–1525 nm Absolute Wavelength 30 pm 30 pm Accuracy Mode-Hop Free Mode-Hop Free Mode-Hop Performance 0.1 pm 0.1 pm Wavelength Resolution <±2.5 pm <±2.5 pm Wavelength Repeatability < 5 pm <...
  • Page 97 Viewing the laser output with certain optical instruments (for example, eye loupes, magnifiers, and microscopes) within a distance of 100 mm may pose an eye hazard. 98 • Appendices NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 98 O Band Laser Specification TLB-6500-H-O TLB-6500-L-O Tuning Range 1260–1340 nm 1260–1340 nm Absolute Wavelength 30 pm 30 pm Accuracy Mode-Hop Free Mode-Hop Free Mode-Hop Performance 0.1 pm 0.1 pm Wavelength Resolution <±2.5 pm <±2.5 pm Wavelength Repeatability (3,7) < 5 pm <...
  • Page 99 Viewing the laser output with certain optical instruments (for example, eye loupes, magnifiers, and microscopes) within a distance of 100 mm may pose an eye hazard. 100 • Appendices NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 100 ™ Swept-Wavelength Tunable Laser Source Appendices • 101 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 101 Computer Interface IEEE, RS232C, Ethernet, Keyboard, and Mouse Operating Temperature 15 to 35 ºC Storage Temperature -20 ºC to 70 ºC 102 • Appendices NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 102 Specification TLB-6500-H-09 Shock/Vibration ISTB Procedure 2B Operating Humidity 80% RH (non-condensing) Warm-Up Time 45 minutes Size 19” Rack Mount, 3U high PRELIMINARY SPECIFICATIONS After wavelength recalibration (user-performed function) 1 pm in step mode. .± ºC 1 hour, temperature 0.1-nm bandwidth, signal to max ASE, 1-3 nm from carrier. 0.2-nm bandwidth, signal to max ASE, >5 nm from carrier.

  • Page 103: Appendix D: Cleaning Procedures

    2. Remove the Laser Output FC Adapter Protective Cap. 3. Remove the Laser FC Adapter by turning it counterclockwise. The fiber output ceramic ferrule is now visible. 104 • Appendices NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 104 (see Appendix C). If it does not, continue with step 13. 13. Disable laser output power. 14. Reinstall the Laser Output FC Adapter Protective Cap. 15. Shut down the Tunable Laser Source. 16. Contact New Focus, Inc. Technical Support for additional help. ™ Swept-Wavelength Tunable Laser Source Appendices • 105...
  • Page 105 106 • Appendices NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

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