The ILX Lightwave LDC-3900 4-Channel Laser Diode controller is designed for simultaneous of both laser current and temperature in a single mainframe for R&D or production test of optical amplifiers and other applications requiring of multiple laser diodes. Laser current source, temperature, and modules are interchangeable in the 4-channel mainframe. Four isolated, independent channels allow simultaneous control of multiple laser diodes, controlling both laser current and temperature. A wide variety of laser control modules are available including laser current source modules from 200mA to 8A (dual bay module) and 32W temperature control modules. controller modules control the laser drive current with up to 2A output and laser temperature with an integrated 12W TE controller. Every module incorporates low-noise, high-stability performance for precise multiple laser wavelength and power control, along with ILX Lightwave’s proven laser protection. Instrument in automated test environments is possible through the GPIB/IEEE-488 interface.