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Wavelength electronics lfi-4505 laser diode driver


Wavelength Electronics LFI-4505 Laser Diode Driver
The 4500 series of laser diode drivers offers an unprecedented combination of safety, performance, and value. Low noise, stable operation makes these flexible instruments ideal for even the most demanding applications. Any combination of LFI modules (both laser diode drivers and temperature controllers) can be interconnected to provide a complete laser diode control solution.
Extensive protection features are incorporated into the 4500 series to protect your laser diode from damage. The output control circuitry includes a shorting relay which protects the laser diode when the output is off or the unit is powered down. The slow start circuit waits three seconds and then safely ramps the output to the preset operating level. To prevent thermal damage to your laser diode, the LFI-4500 series output can be disabled by the LFI-3500 temperature controller via the analog interface input. A unique AC power monitor circuit disables the output if AC power is above or below the recommended input level.
Simple to use front panel controls make the 4500 series easy to operate. Highly visible LEDs indicate errors that effect the output, on/off status, and current limit condition. Control the laser diode forward current or monitor photodiode current using the linear ten-turn potentiometer. The current limit setting is fully independent and is set using a twelve-turn trimpot on the front panel.
Interlock any combination of LFI-4500 series laser diode drivers or LFI-3500 series temperature controllers without additional hardware.
The unit has the following features:
* Low noise, stable current source (<20 ppm)
* Constant Current and Constant Power control modes
* Five models deliver from below 200mA to 6.5 Amps
* Works with all LD/PD configurations
* Easy to adjust, fully independent current limit
* Slow turn-on and comprehensive laser protection circuitry
* Operates on standard AC voltages
* 500 mA Laser Diode Driver