Laser Diode Drivers

We offer a wide selection of drivers. LDP201: This driver is designed for lasers up to 150mA and may operate in either constant current or automatic power control mode. Built-in 3/4 turn potentiometers allow users to adjust the laser power or drive current (depending on mode of operation). DVM-compatible test points enable monitoring of the laser drive current or photodiode feedback current during operation. LDP214: The LDP214 is designed to drive lasers up to 120mA when those lasers incorporate a back-facet monitor diode. The unit operates in automatic power control mode and, therefore, will adjust to environmental changes to maintain a constant output power. A built-in 3/4 turn potentiometer enables users to adjust the laser power from 0 to the maximum, factory-set laser output. LDP234: Designed to drive P-type laser diodes up to 120mA, the LDP234 operates in constant current or automatic power control mode. A built-in 3/4 turn potentiometer enables users to adjust the laser power from 0 to the maximum laser setting. LDP252: Designed for high power laser diodes up to 2500mA, the LDP252 may operate in either automatic power control or constant current mode. Built-in 3/4 turn potentiometers allow users to adjust the laser power (or drive current), while DVM-compatible test points enable monitoring of drive current or photodiode feedback current during operation. LDP305: *Minimum Quantities Required* The LDP305 is a 10A current source designed for high power laser diodes. The unit can drive single- or multi-facet laser diodes up to a compliance voltage of +30V. Two configurations are available: a single power source configuration and one that requires two DC power sources. The single power source configuration allows a maximum voltage of 30V and a minimum of 7V. This setup generates a relatively high level of heat. The dual power source configuration allows a maximum voltage of 30V for laser current and a minimum voltage equal to 0.5V + the laser diode's forward voltage drop. This configuration requires a second source to supply 5V for control circuitry use. The dual power source setup results in minimal heat generation.Analog modulation is standard for our LDP305 and capable of CW to 12kHz. This feature allows for full control of the unit's output from 0 to full power with a DC voltage from 0 to 1.0V. The LDP305 is also capable of digital modulation up to 350Hz. DVM-compatible test points allow users to monitor drive current during operation. LDP360: The LDP360 is a 40A current source designed to drive our most powerful laser diodes. The unit operates in constant current mode. Analog modulation is standard. DVM-compatible test points allow users to monitor laser drive current during operation. TMD219: We offer two TMD219 drivers. Our TMD219-100 can drive laser diodes up to 100mA, while our TMD219-200 can drive them up to 200mA. Both operate from CW to 20MHz in constant current mode. Also, both can be modulated from an external user-supplied TTL trigger. Optional potentiometer controls are available to provide adjustable drive current. The TMD219-100 or TMD-200 has a typical