QCL Series Low Noise Quantum Cascade Laser Driver

The QCL Series Low Noise Drivers include patented circuitry ideal for driving Quantum Cascade Lasers (QCLs). Available in models up to 2A with low RMS noise (less than 0.7 µA for QCL1000).

An onboard Current Setpoint trimpot allows a DC bias to be set. Its signal sums with a remote Analog Input signal that can be negative or positive.

Safety: An onboard trimpot sets the current limit. Brownout, reverse voltage, and overvoltage protection isolate the QCL from power supply failures. An Overtemp Fault signal minimizes the chance of failure due to overheated electronics. Onboard or remote Enable controls when current can flow to the QCL. Once enabled, there is a 1.5 second delay and a slow-start ramp to safely power on the QCL. LED status indicators for Power ON, Enable, and FAULT are on the front panel. Status signals on the output connector can also drive external LEDs.

This OEM controller can be integrated into field deployed systems or used on a benchtop.

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