$895.00 ships: 3 weeks | item#: LDC-760
- 300mA Low Noise Laser Diode Current Source
- 28 Watt TEC Controller / Temperature Controller
- Laser Diode Protection: Soft Start Current, Current Limit and Power Surge Clamp
- Compact: 44 x 105 x 164 mm
- Operates from 24 VDC Power Supply (Included)
- Includes LabVIEW Drivers, RS232 or USB Interface
- Offered by OsTech, a Laser Lab Source Marketplace Seller
Sold & Supported in North America by: LaserDiodeControl.com, part of the Laser Lab Source Marketplace Group
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300mA Precision Laser Diode Driver Module with 28 Watt TEC Controller Overview
These laser diode drivers are an affordable bias current source for semiconductor lasers. They deliver a maximum output power up to 300 mA and up to 8 volts compliance voltage. An external modulation signal can be applied and these units will accept digital or analog modulation.
Protection Features for Safely Driving Your Laser Diode
These modules offer many protection features to safely bias you laser. They have a slow-start current ramp to protect the laser during the power-on sequence. The current ramp is set to 300 milliseconds by default but can be adjusted by the user. The user can set a current limit. Additionally, on board transient filters protect the laser diode from harmful transients which can occur from brown out or black out power conditions. To protect the user, a safety interlock circuit is available for a fast shut-down under the interlock trigger conditions.
The integrated 28 watt TEC controller is a full P.I.D. loop controller based on a precision output current and voltage driver. The current and voltage source is designed for stable control of a Peltier cooler. They work with multiple temperature sensor types and utilize and h-bridge topology to sink and source power as required by the Peltier element.
The user has the choice of using the standard RS232 serial interface on the rear panel or ordering the optional USB interface ($100). After connecting the driver to a PC, the LDC series module includes LabView drivers with a simple to use graphical user interface (GUI). All of the laser diode control parameters can be set and monitored using the GUI, including bias current set-point, current limit, slow-start current ramp time and modulation.
If the user does not have LabView, a serial command set is provided in the manual for the user to control the driver. In addition to CW mode, the LDC includes an internal function generator which can be used to operate the laser diode in a QCW (pulsed) mode with user set pulsed width from 15 microseconds to CW. The rear panel d-SUB connector has dedicated pins for an external modulation function generator to be applied to the bias current driving the laser.
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