Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Related Manuals for THORLABS LD3000R
Summary of Contents for THORLABS LD3000R
- Page 1 LD3000R Constant Current Laser Diode Driver User Guide...
-
Page 2: Table Of Contents
3.3. Laser Current Monitor ........... 6 3.4. Photodiode Current Monitor ......... 7 3.5. Important Note About Compliance Voltage and Power Supply Voltages ............8 Chapter 4 Specifications ..............10 Chapter 5 Drawings ................. 11 Chapter 6 Regulatory ............... 12 Chapter 7 Thorlabs Worldwide Contacts........13... -
Page 3: Chapter 1 Warning Symbol Definitions
Constant Current Laser Diode Driver Chapter 1: Warning Symbol Definitions Chapter 1 Warning Symbol Definitions Below is a list of warning symbols you may encounter in this manual or on your device. Symbol Description Direct Current Alternating Current Both Direct and Alternating Current Earth Ground Terminal Protective Conductor Terminal Frame or Chassis Terminal... -
Page 4: Chapter 2 Description
12-turn trimpot or an external analog voltage (0 to 5 VDC). The LD3000R has a quiescent laser current of 10 to 20 mA (i.e. with the laser current control turned down to a minimum, the lowest laser current could be as high as 20 mA). -
Page 5: Chapter 3 Setup And Operation
Constant Current Laser Diode Driver Chapter 3: Setup and Operation Chapter 3 Setup and Operation The LD3000R was designed to mount to a suitable heat sink. Two counter-sunk clearance holes located on 3" (76.2 mm) centers are provided for easy mounting. WARNING The driver dissipates a large amount of heat when driving lasers under full load. - Page 6 No Connection (Leave This Pin Floating) -V (May Also Be Used for Monitoring Signals) CAUTION Do not operate the LD3000R without a jumper installed on J2. Your laser may be overdriven and permanently damaged. WARNING Direct viewing of laser diode emission may cause eye damage, especially in conjunction with collimating lenses.
-
Page 7: Laser And Power Supply Connection
3.1. Laser and Power Supply Connection The LD3000R requires a clean (preferably non-switching) DC bipolar power supply for optimum operation. The positive supply is used only for biasing low-power amplifiers and only needs to supply 10 mA of current. The laser drive current is derived from the negative power supply output and should be capable of at least -2.6 A of current. -
Page 8: Selecting External Current Control Mode
CAUTION One of the following operating modes must be selected BEFORE turning the LD3000R on. Otherwise, the laser will be overdriven and damaged. Mode 1 COMMON referenced external current control voltage (i.e. 0 to 5 V). An internal level shifter allows the negatively biased laser to be controlled by a COMMON referenced control voltage. -
Page 9: Photodiode Current Monitor
The use of the monitor input with common cathode lasers will cause damage to the laser. However, the LD3000R can be used safely with common cathode lasers as long as the photodiode is not connected to the driver. -
Page 10: Important Note About Compliance Voltage And Power Supply Voltages
Important Note About Compliance Voltage and Power Supply Voltages The LD3000R is a power module and will dissipate a fair amount of heat under normal operation. However, it is imperative that the driver be mounted to an adequate heat sink to avoid damaging the internal components. Also, please read the following section on compliance voltage to keep the excess heating to a minimum. - Page 11 Constant Current Laser Diode Driver Chapter 3: Setup and Operation a minimum. (Note that the circuitry requires a minimum supply voltage of 8 V to operate properly. See the supply voltage specification.) = ( 1٠) �� �� + �� + ��...
-
Page 12: Chapter 4 Specifications
Constant Current Laser Diode Driver Chapter 4: Specifications Chapter 4 Specifications LD3000R Output Current 0.02 - 2.5 A Operating Mode Constant Current Internal Current Control 12-Turn On-Board Potentiometer 0 - 5 V Analog Input Voltage External Current Control (J1 Pin 4) Signal Bandwidth 1.1 kHz... -
Page 13: Chapter 5 Drawings
Constant Current Laser Diode Driver Chapter 5: Drawings Chapter 5 Drawings Rev K, March 27, 2017 Page 11... -
Page 14: Chapter 6 Regulatory
Waste Treatment is Your Own Responsibility If you do not return an “end of life” unit to Thorlabs, you must hand it to a company specialized in waste recovery. Do not dispose of the unit in a litter bin or at a public waste disposal site. -
Page 15: Chapter 7 Thorlabs Worldwide Contacts
Thorlabs, Inc. Thorlabs Ltd. sales@thorlabs.com sales.uk@thorlabs.com techsupport@thorlabs.com techsupport.uk@thorlabs.com Europe Scandinavia Thorlabs GmbH Thorlabs Sweden AB europe@thorlabs.com scandinavia@thorlabs.com France Brazil Thorlabs SAS Thorlabs Vendas de Fotônicos Ltda. sales.fr@thorlabs.com brasil@thorlabs.com Japan China Thorlabs Japan, Inc. Thorlabs China sales@thorlabs.jp chinasales@thorlabs.com Rev , , 201... - Page 16 www.thorlabs.com...
Need help?
Do you have a question about the LD3000R and is the answer not in the manual?
Questions and answers