WORLD LEADING PRODUCTS FOR LASER SCIENTISTS AND ENGINEERS

Transcription

1 120 Amp Laser Diode Bar and Array Driver; High Power CW & QCW Current Source 120 Amp Current Source Optimized for Laser Diode Bars and Arrays User Configurable Soft-Start Current Ramp and Enhanced High Power Bar Protection Features CW and QCW QCW Pulse Width Range 25 μs to CW Integrated QCW Pulse Generator and Remote Trigger Input RS232, USB, LabView Drivers LDC-154 DATA SHEET WORLD LEADING PRODUCTS FOR LASER SCIENTISTS AND ENGINEERS

2 DATA SHEET LDC-154 Product Overview: These affordable laser diode drivers offer a maximum output of 120 Amps, 4 Volts and can operate in high power constant current or QCW mode. They are designed to power laser bars and arrays requiring high current ranges with low voltage. They offer an integrated function generator for generating QCW pulses from 25 microseconds to CW. They also run full CW power up to 120 Amps. They are designed specifically to safely bias fiber coupled bar modules and CCP style copper mount bars from companies such as DILAS and Coherent. These units come with a front panel that is easy to operate as well as both RS232 and USB digital interface. They include LabView drivers. Protection Features Specifically for High Voltage Multi-Emitter Laser Diodes and Series Connected Devices: These current sources feature multiple levels of built-in laser diode protection which have been optimized for bars and arrays. One of the unique features is a user programmable soft-start ramp of the bias current to the device under test. The factory sets the ramp time to 300 milliseconds as a default, but the user can adjust this time period from 1 millisecond up to 10 s of seconds. This current ramp up and down function is designed to protect the laser from thermal shock during power up and down sequences. In addition to this soft-start ramp, these drivers offer features such as current limit, a brown-out and black-out power surge clamp, AC line filters and a fast response to shunt the current in the event of an open circuit. The LDC-154 utilizes high current M4 style connectors on the rear panel and there are multiple cabling options available to ensure reliable connection to your device under test.

3 LDC-154 SPECIFICATIONS LASER DIODE CURRENT OUTPUT Output Current Range: Amps Compliance Voltage Range: Volts Current Noise & Ripple (rms): < ± 0.5% of Full Scale Current Current Setpoint Resolution: 30 ma Current Setpoint Accuracy: ± 0.5% Current Stability (4 hours): 300 ppm Current Limit Setpoint Accuracy: ± 2% Photodiode Current Measurement Accuracy: ± 0.5% Photodiode Current Measurement Range: μa LASER DIODE PROTECTION FEATURES Soft-Start Current Ramp to Setpoint (User Programmable) Soft-Start Current Ramp Factory Default Set to 300 Milliseconds Current Limit Open Circuit Detection Short Circuit when Laser Diode Current Turned OFF ESD and Power Surge Clamp Reverse Voltage Transient Clamp AC Line Filter Rear Panel Keylock Switch and Safety Interlock Front Panel e-stop Button Emergency Shut-Down QCW (QUASI-CW) MODE AND MODULATION Pulse Width Range < 25μs to CW, 10%-90% (< 20μs on request) Integrated Function Generator Pulse Time Base Accuracy: ± 1.0% QCW Mode Trigger: Internal (Integrated) Function Generator or Ex ternal Trigger MODULATION Input: Digital (TTL) or Analog MODULATION Input Voltage Range: 0 ~ 4 Volts (4V = Max Current) MODULATION CONNECTOR: BNC, Rear Panel, 10 kohm Input Impedance

4 LDC-154 SPECIFICATIONS USER INTERFACE Front Panel Alphanumeric LCD with Key Pad Buttons RS232 Standard USB Optional: LabVIEW Drivers Included $95.00 (Option SVC-USB) GENERAL Input Power: Dimensions: Weight: Laser Bias Current Output Connector: Control Signals Connector: Universal 98VAC ~ 230 VAC, 50/60 Hz 200mm (Width) x 175mm (Height) x 270mm (Depth) ~ 10 kg M4 D-Sub, 15 Pin Female

5 DATA SHEET

6 Product Warranty: In addition to the standard full one year waranty, this product is offered with an additional 3 months of extended warranty for a total of 15 months of waranty coverage. The warranty includes all parts and labor. The warranty does not include customer induced product damage. Our Customer Commitment: You Get Direct, Fast Tech-Support from a Product ENGINEER... Not a Sales Person You get DIRECT access to the correct factory engineer for your product. We eliminate the sales person middle-man back and forth time delays resolving technical issues. No more Contact Us forms. Every product has an assigned engineer in our auto-messaging data base to give you direct, immediate access to the correct tech-support info. You Get an Extended Warranty All products from come with a 12 month factory warranty. Additionally, we offer and extra 3 months of warranty on top of the standard warranty. Warranty does not include customer induced product damage. You Get the Lowest Factory-Direct Prices Worldwide All of our 3rd party global suppliers set & quote their own direct pricing. There are NO Mark-Up s. You get their lowest direct price.