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    Home / Products / DLD Diode Laser Driver

    Quantum Technologies

    Control & Measurement

    DLD Diode Laser Driver

    DLD Diode Laser Driver

    The DLD is a simple constant current source for both positive and negative current that can drive a laser diode in cathode or anode grounded configuration up to 300 mA. It also has a TEC driver that can supply up to 3.5 A of to provide thermal control to the laser diode.

    The unit comes with an LCD display, user buttons, BNC input for slow current modulation, USB connector for serial communication and a 9 pin D-Sub connector for analog outputs and inputs to control current and Peltier voltage, sense the temperature in a thermistor bridge and optical power if the laser diode comes with a monitor diode on a 24HP front panel.

    The device is a modular unit to be powered by a Eurocard rack system (sold separately) and does not require a driver to operate. Cables to Laser diode head not included. The host and device communicate only by a serial interface.

    Datasheet PDF Format

    Device Specifications

    Current Driver
    Max current ±300 mA
    Current resolution 0.001 mA
    Maximum driving voltage ± 10 V
    External current modulation -10 · · · 10 V
    Current modulation gradient 3.4 mA/V
    Modulation bandwidth (3dB) 130 kHz


    TEC Driver
    Max Current ± 3.5 A
    Max Voltage ± 4 V
    Calibrated for thermistor sensor 10 kΩ @ 25◦C
    Temperature resolution 0.001 K
    Temperature range 10 · · · 40 ◦C