S-3 High Power Pulse Generator
The S-3 High Power Pulse Generator is designed to drive devices requiring short or long pulses of high current with a non-linear response, including optical devices such as high power quantum cascade lasers, infrared laser diodes, LEDs or electronic devices such as Gunn diodes or high speeds transistors and rectifiers.

The S-3 is a good replacement for the obsolete Keysight/Agilent 8114A or the AV-107 from Avtech and provides additional features. The S-3 offers many programmable options and can be programmed from a computer through its USB port but once this done, if you plan to use the device continuously, you can just have it start at turn on and do not need any computer command to turn it on for full stand-alone operation.

The device contains an external enable/disable TTL control that allows full operation in Quasi-CW mode of a QCL, Laser Diode or any load.
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If you wish to control the driver through direct commands, you can find the API here. You can use the API with no additional fee; optional Service and Support agreements are available.