Fiber Coupled Amplified Photodetectors Module Plug-Play

10 MHz Fiber Optical Amplified Detector / Receiver: 0.9-2.6 µm

The COAD is designed for low-light-level detection for the 0.9 to 2.57 µm wavelength range. It has an amplified, thermoelectrically cooled (-10°C), switchable-gain, switchable-bandwidth, extended InGaAs PIN photoconductive detector. The detector is mounted on a thermoelectric cooler with a thermistor that provides feedback to maintain a constant temperature of about -10°C via an internal circuitry. This cooling enhances detectivity, resulting in higher gains and lower thermal noise. The gain, response bandwidth, and sensitivity are all interrelated. Two eight-position rotary switches allow for varying the gain in 10 dB steps and selecting bandwidths from 500 Hz to 1 MHz to optimize performance for specific applications.