1. Manuals
  2. Brands
  3. Newport Manuals
  4. Laboratory Equipment
  5. 500B Series
  6. User manual

Newport 500B Series User Manual

Laser diode drivers
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
sales@artisantg.com
artisantg.com
(217) 352-9330 |
|
Visit our website - Click HERE

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the 500B Series and is the answer not in the manual?

Questions and answers

Related Manuals for Newport 500B Series

Summary of Contents for Newport 500B Series

  • Page 1 sales@artisantg.com artisantg.com (217) 352-9330 | Visit our website - Click HERE...
  • Page 2 Model 500B Series Laser Diode Drivers User’s Manual...
  • Page 3 We declare that the accompanying product, identified with the mark, complies with requirements of the Electromagnetic Compatibility Directive, 2001/108/EC and the Low Voltage Directive 2006/95/EC. Model Number: Model 500B Series Laser Diode Drivers Year mark affixed: 2003 Type of Equipment: Electrical equipment for measurement, control and...

  • Page 4: Warranty

    INDIRECT, SPECIAL, OR CONSEQUENTIAL DAMAGES RESULTING FROM THE PURCHASE OR USE OF ITS PRODUCTS. First printing 2003 © 2003 by Newport Corporation, Irvine, CA. All rights reserved. No part of this manual may be reproduced or copied without the prior written approval of Newport Corporation.
  • Page 5 Preservation of Secrecy and Confidentiality and Restrictions to Access: Customer shall protect the Newport Programs and Related Materials as trade secrets of Newport, and shall devote its best efforts to ensure that all its personnel protect the Newport Programs as trade secrets of Newport Corporation.

  • Page 6: Technical Support Contacts

    Newport Corporation, freight prepaid, clearly marked with the RMA# and we will either repair or replace it at our discretion. Newport is not responsible for damage occurring in transit and is not obligated to accept products returned without an RMA#.
  • Page 7 Preface This page is intentionally left blank...

  • Page 8: Table Of Contents

    Preface Table of Contents EU Declaration of Conformity ............... ii Warranty ....................iii Technical Support Contacts ..............v Table of Contents ................. vii List of Figures and Tables ..............x Safety Precautions Definitions and Symbols ............11 General Warning or Caution ...........11 1.1.1 1.1.2 Electric Shock ..............11 1.1.3 European Union CE Mark ..........11...
  • Page 9 viii Preface System Operation Front Panel .................. 27 4.1.1 AC Power Switch ............27 4.1.2 MOD ................27 4.1.3 Range Switch ..............28 4.1.4 Mode Switch ..............28 4.1.5 OUTPUT ON Switch and Indicator ........28 4.1.6 Laser Enable ..............29 4.1.7 Display Section ..............29 4.1.8 Control Knob ..............30 Rear Panel ...................
  • Page 10 Grounding the Laser Diode ............56 Model 500B Series Setup ............56 7.5.1 Using the Interlock Feature ..........56 7.5.2 Rack Mounting Model 500B Series Units .......56 7.5.3 Model 500B Series Operation Checklist ......56 Maintenance and Service Enclosure Cleaning ..............59 Fuse Replacement ...............
  • Page 11 Laser Diode Protection Circuit........... 52 Figure 16 Laser Diode/Photodiode package types with pin assignments. 53 Figure 17 Laser Diode/Photodiode configurations and connections to 500B Series LDDs................. 54 Figure 18 Telecommunication laser diode packages and connections to 500B Series LDDs................. 55 Figure 19 Fuse Replacement ................

  • Page 12: Safety Precautions

    Safety Precautions Definitions and Symbols The following terms and symbols are used in this documentation and also appear on the Model 500B Series Laser Diode Drivers where safety-related issues occur. 1.1.1 General Warning or Caution Figure 1 General Warning or Caution Symbol The Exclamation Symbol in the figure above appears in Warning and Caution tables throughout this document.

  • Page 13: Cdrh- Center For Devices And Radiological Health

    Safety Precautions 1.1.4 CDRH- Center for Devices and Radiological Health Model 500B Series Laser Diode Drivers has been designed and tested to comply with all applicable Center for Devices and Radiological Health (CDRH) regulations and recommendations. Within FDA, the Center for...

  • Page 14: Off

    The fuse symbol in the figure above identifies the fuse location on the Model 500B Series Laser Diode Drivers. 1.1.9 Frame or Chassis Figure 8 Frame or Chassis Terminal Symbol The symbol in the figure above appears on the Model 500B Series Laser Diode Drivers. This symbol identifies the frame or chassis terminal...

  • Page 15: Warnings And Cautions

    Safety Precautions Warnings and Cautions The following are definitions of the Warnings, Cautions and Notes that are used throughout this manual to call your attention to important information regarding your safety, the safety and preservation of your equipment or an important tip.

  • Page 16: General Cautions

     This product should only be powered as described in the manual.  There are no user-serviceable parts inside the Model 500B Series Laser Diode Drivers.  To prevent damage to the equipment, read the instructions in the equipment manual for proper input voltage.
  • Page 17 Make sure that the selector is set at the position which corresponds to your mains voltage. CAUTION There are no user serviceable parts inside the Model 500B Series Laser Diode Drivers. Work performed by persons not authorized by Newport Corporation will void the warranty. For instructions...

  • Page 18: Location Of Warnings

    General Information Location of Warnings 1.3.1 Rear Panel Fuse info MAX Power Electrical Hazard (Series 501B shown) Frame or Chassis Terminal Figure 10 Locations of warnings on the rear panel...
  • Page 19 For information about where the user can drop off the waste equipment for recycling, please contact your local Newport Corporation representative.

  • Page 20: General Information

    General Information Introduction The 500B Series Laser Diode Drivers offer all the performance of the most advanced drivers for a fraction of the price. All models are electrically quiet and stable enough for use in the most demanding applications such as spectroscopy, fiber optic communications and all disciplines requiring highly stable optical power from a laser.

  • Page 21: Specifications

    General Information Specifications 501B (Obsolete) 505B 525B (Obsolete) 560B Output Current Output Current Range (mA) 0–50 0–100 0–200 0–500 0–1,000 0–2,500 0-3,000 0–6,000 Output Current Resolution (mA) 0.001 0.002 0.004 0.01 0.02 0.05 0.06 0.12 Output Current Accuracy (%FS) ±0.03 ±0.05 ±0.07 ±0.09...

  • Page 22: Accessories

    Output Connectors External Photodiode Output Connectors Modulation Table 2 Environmental Specifications Accessories The Model 500B Series Laser Diode Drivers come with a line cord for connection to AC power. To order accessories use the following part numbers: PART # DESCRIPTION...
  • Page 23 General Information This page is intentionally left blank...

  • Page 24: Getting Started

    Getting Started Unpacking and Handling It is recommended that the Model 500B Series Laser Diode Drivers be unpacked in a lab environment or work site. Unpack the system carefully; small parts and cables are included with the instrument. Inspect the box carefully for loose parts before disposing of the packaging.

  • Page 25: Parts List

    Newport Corporation also supplies temperature controlled mounts, lenses, and other accessories. Please consult with your representative for additional information. Parts List The following is a list of parts included with the Model 500B Series Laser Diode Drivers: 1. User’s manual (CD) 2. Power cord 3.

  • Page 26: Power Supplies

    General Information Power Supplies  AC power is supplied through the rear panel input power connector which provides in-line transient protection and RF filtering. The input power connector contains the fuses and the switch to select series or parallel connection of the transformer primaries for operation at 100VAC, 120VAC, 220VAC or 240VAC...
  • Page 27 Getting Started This page is intentionally left blank...

  • Page 28: System Operation

    Section 1. Front Panel The front panel of the Model 500B Series Laser Diode Driver is arranged for easy operation. Seven distinct areas, each with a specific set of related functions, and a control knob are located on the front panel, as shown in Figure 12 below.

  • Page 29: Range Switch

    The output of the laser diode can be modulated in this mode by connecting an external signal source to the MOD input on the front panel. The Model 500B Series can be used with a monitor photodiode and can be operated in a constant optical power mode. Reverse voltage biasing of the photodiode is a standard feature that improves the dynamic range and frequency response of a laser diode.

  • Page 30: Laser Enable

    System Operation Once the fault is corrected, the OUTPUT ON switch must be pushed once to clear the error indication, and a second time to restore current to the laser diode. LIMIT Indicator LED A soft limit occurs when the output current gradually exceeds a preset value, clamping the current flow at that level and causing the LIMIT LED to blink until the threshold is no longer exceeded.

  • Page 31: Control Knob

    SETPOINT or LIMIT SET modes. Rear Panel The Model 500B Series rear panel shows the OUTPUT connectors, a REMOTE/LOCAL switch, the photodiode reverse voltage BIAS ADJUST screw, a photodiode BNC input, the BANDWIDTH selection switch, and the AC power inlet.

  • Page 32: Bandwidth Select Switch

    System Operation 4.2.3 Bandwidth Select Switch Setting the bandwidth select switch LOW dampens the output response, thereby reducing noise levels in the 0-10kHz modulation range. Modulation rates above 10kHz require a faster output response requiring the bandwidth selection switch to be set to the HIGH position. The maximum modulation frequency depends on the drive capabilities specified in Table 1.

  • Page 33: Frame Or Chassis Terminal

    System Operation it to show the appropriate power grid voltage. The fuse is also located behind this panel and can be pulled out, for replacement with the appropriate size, as indicated on the back panel. All units are preset at the factory for operation at 108-132VAC, 60HZ. The fuse must be changed for 198-242VAC and 216-264VAC operation.

  • Page 34: Computer Interfacing

    Computer Interfacing Memory The calibration constants and other laser parameters that must be retained even when the power is removed from the unit, are stored in an electrically erasable programmable memory (EEROM). Interlock Operation The back panel laser input/output connector has interlock connections that must be connected before the laser output will be enabled.
  • Page 35 Computer Interfacing COMMAND EXECUTION: The controller interprets the commands in the order they are received and execute them sequentially. If a set of commands have to be executed closer to each other, these commands can be sent to the controller simultaneously by creating a command string with semicolon (;) used as a command separator.

  • Page 36: Table 3 Command Summary

    Computer Interfacing Commands common to both Temperature Controllers and Laser Diode Drivers: Command Command Remarks Syntax Description Clear status and response *CLS buffer command Identification Query *IDN? Recall Settings Restore instrument to setup state stored in its non- *RCL volatile local memory Reset Instrument *RST Save Settings...
  • Page 37 Remarks This query will cause the instrument to return an identification string. Controller Model Firmware Firmware Serial # name version # date NEWPORT XXXX vYYY mm/dd/yy, SNZZZZ *RCL Description Recall command. *RCL value Syntax Argument Value Description Value Restores Factory Default settings...
  • Page 38 Computer Interfacing *SAV Description Save command. *SAV value Syntax Argument Value Description Value Not used Saves current settings to working settings Saves current settings to user settings Remarks The save command stores the current state of the instrument in non- volatile local memory.
  • Page 39 Computer Interfacing ADDRess? Description USB address query. ADDRess? Syntax ADDRess query returns the controller’s USB address. Remarks Response Value Description address Reserved 1 to 99 Valid USB address range See Also ADDRess ERRors? Error query. Description Syntax ERRors? The ERRors? query returns a list of commands and device errors which have occurred Remarks since the last query.
  • Page 40 Computer Interfacing HARD CURRENT LIMIT ERROR The output has been turned OFF because: An open circuit in the laser diode package or cabling. Overmodulating the external voltage input caused the laser output current to exceed a previously set limit value. Once the fault is corrected, “LAS:OUTput 1”...
  • Page 41 Computer Interfacing Returns the controller to local mode after being placed in remote mode by the USB Remarks interface. KEYswitch? Description Key switch setting query KEYswitch? Syntax Remarks The KEYswitch query returns an integer that indicates the present state of front panel key switch.
  • Page 42 Computer Interfacing Response Description current set point Current set point in mA LASer:LDI See Also LASer:LDI? (I?) Description Measured laser current query. LASer:LDI? Syntax The LASer:LDI? query returns the value of the measured laser current. Remarks Response Description measured current Measured laser current in mA This measurement is updated approximately once every 225 milliseconds.
  • Page 43 Computer Interfacing LASer:MDI? Syntax Remarks The LASer:MDI query returns the value of the measured photodiode current. Response Description measured PD current Measured photodiode current in mA This measurement is updated approximately once every 225 milliseconds. See Also LASer:MDI, LASer:SET:MDI? LASer:LDV? Measured forward voltage query.
  • Page 44 Computer Interfacing LASer:MODE? Description Laser mode query. LASer:MODE? Syntax The LASer:MODE? query returns the selected laser control mode. Remarks Response Value Description mode "Ilbw" constant current mode, low bandwidth "Ihbw" constant current mode, high bandwidth "Mdi" constant power mode See Also LASer:MODE:ILBW, LASer:MODE:IHBW, LASer:MODE:ICW, LASer:MODE:MDI, LASer:MODE:P LASer:MODE:I (ILBW, IHBW)
  • Page 45 Range select. Description Syntax LASer:RANGE range Each Model 500B series unit has two output current ranges. If this command is issued Remarks when the output is ON, output is turned OFF, and the range is set to the desired state. Response...
  • Page 46 Computer Interfacing LASer:RANGE? Description Range query LASer:RANGE range? Syntax The LASer:RANGE query returns an integer that indicates the present range Remarks Response Value Description Status High LASer:RANGE See Also...
  • Page 47 Computer Interfacing This page is intentionally left blank...

  • Page 48: Software Application

    Software Application Overview The 300B/500B Controllers have a USB 2.0 connector on the back of the unit that is used to connect to a computer. This connector will work with USB 1.0 and 1.1 also, as it is fully backwards compatible. Provided on the CD that comes with the unit is an installation for a software application that communicates with the 300B/500B using the USB port.

  • Page 49: General Usage

    Software Application General Usage This software application allows the user to setup and monitor the instrument remotely. The controls on the instrument are available in the software in a very easy to read and change format. LDD/TEC Function Tabs Mode Switch Communication Indicator...

  • Page 50: Tec Tab

    Software Application READBACK: Output Enable - Displays output on/off state LD Current - Displays the forward laser current PD Current - Displays the monitor diode (PD) current Bandwidth - Displays the current bandwidth setting 6.3.2 TEC Tab CONTROLS: TEC Mode - Sets R/T/I mode of control Output Enable - Turns on/off the output...
  • Page 51 Software Application This page is intentionally left blank...

  • Page 52: Principles Of Operation

    Principles of Operation Introduction Operating procedures of the Model 500B Series Laser Diode Drivers include safe handling procedures for laser diodes, various types of laser diode packages, how to make the connections, and how to ground a laser diode. Laser Diode Handling Precautions...

  • Page 53: Laser Diode Connections

    Principals Of Operation Figure 16 Laser Diode Protection Circuit. Laser Diode Connections Laser diodes come in many different types of packages, with and without monitor photodiodes. The following sections will show how to make connections to standard 9mm and 5.6mm packaged laser diodes and also telecommunication laser diodes in Dual In-Line (DIL) and butterfly packages.

  • Page 54: 9Mm And 5.6Mm Laser Diode Packages

    Principals of Operation 7.3.1 9mm and 5.6mm Laser Diode Packages Almost all CD type packages fall into one of seven configurations as shown in Figure 17. Figure 18 shows how to connect a Model 500B Laser Diode Driver to three of the various laser diode and photodiode configurations. NOTE The optional chassis ground (earth ground) should not be connected until reading Sections 3 and 4.

  • Page 55: Telecommunication Laser Diode Packages

    Please be careful and check for the correct laser diode type before making any connections to a Model 500B Series Laser Diode Driver. If the laser diode is to be earth grounded, the CHASSIS GND pin 3 from the laser diode driver output connector is used to make this connection, which is connected internally to the chassis directly.

  • Page 56: Figure 18 Telecommunication Laser Diode Packages And Connections To 500B Series Ldds

    Principals of Operation telecommunication laser package are shown in Figure 19. Care must be taken when connecting the chassis ground (earth ground) to the package. Figure 19 Telecommunication laser diode packages and connections to 500B Series LDDs.

  • Page 57: Grounding The Laser Diode

    Principals Of Operation Grounding the Laser Diode The outputs of the Model 500B Series are isolated from earth (chassis) ground. Isolating the laser diode case avoids damaging the device from multiple ground loop potentials, AC transients or static discharge. It is strongly recommended that a single point ground scheme be established, specifically at pin 3 of the DB-9 connector.
  • Page 58 Enable KEYSWITCH, push OUTPUT on Switch, then toggle front panel display to the appropriate readout. NOTE Newport Corporation is not in any way responsible for any damage to any device used in conjunction with the Model 500B Series products.
  • Page 59 Principals Of Operation This page is intentionally left blank...

  • Page 60: Maintenance And Service

    Maintenance and Service CAUTION There are no user serviceable parts inside the Model 500B Series Laser Diode Drivers. Work performed by persons not authorized by Newport Corporation will void the warranty. Enclosure Cleaning WARNING Before cleaning the enclosure of the Model 500B Series Laser Diode Drivers, the AC power cord must be disconnected from the wall socket.

  • Page 61: Obtaining 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 Number, which you should reference in your shipping documents. Please fill out a copy of the service form, located on the following page, and have the information ready when contacting Newport Corporation.

  • Page 62: Service Form

    Maintenance and Service Service Form Newport Corporation U.S.A. Office: 800-222-6440 FAX: 949/253-1479 Name _______________________________ Return Authorization #__________________ (Please obtain RA# prior to return of item) Company ________________________________________________________________________ (Please obtain RA # prior to return of item) Address ________________________________ ____________________Date _________________ Country _______________________ Phone Number ______________________________________ P.O.
  • Page 63 Newport Corporation Worldwide Headquarters 1791 Deere Avenue Irvine, CA 92606 (In U.S.): 800-222-6440 Tel: 949-863-3144 Fax: 949-253-1680 Internet: sales@newport.com Visit Newport Online at: www.newport.com...

This manual is also suitable for:

501b505b525b560b

Table of Contents