Avalanche photodiodes

Dec. 6, 1999
Avalanche photodiodes

Large-area avalanche photodiodes (LAAPDs) come in integrated, cooled modules. The 631 is ac-coupled, the 641 is dc-coupled, and both can accommodate the company's 571 Series thermoelectrically cooled LAAPD detectors. They operate over a wide ambient temperature range, with stable operating gain up to 300 with minimal noise and dark current. They come in 5-, 10-, and 16-mm diameters, with peak quantum efficiency 80% and spectral response tailored to ultraviolet, blue or red/infrared spectral regions.
Advanced Photonix, Camarillo, CA

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