Laser Diode Controllers

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Definition of a Laser Diode Controller:
A laser diode controller consists of a constant current source combined with a TEC temperature controller. Their function is to provide constant, stable current to a semiconductor laser and to control the laser's temperature. Laser diode controllers provide both functions. They include an integrated low noise current source to bias the laser as well as an integrated bi-polar current source for the peltier cooler which controls the laser's temperature. Both of these functions are combined into one instrument or module. A high quality controller should be selected for the intended application of the laser, the required current, the required TEC power and the form-factor.