Germanium Detectors are photodiodes made from germanium, a semiconductor that responds to light from roughly 800 nm to 1800 nm. They are available in large active areas, which makes them well suited to optical power meters, fiber optic test equipment, and laser monitoring in the near-infrared. Compared with InGaAs devices, germanium detectors generally have higher dark current and slower response. GPD Optoelectronics manufactures germanium photodiodes, including 10 mm large-area detectors.
GPD Optoelectronics will exhibit at SPIE BiOS Expo 2027, January 30-31 in San Francisco. Visit Booth #8233 to discuss photodiode solutions for optical power monitoring, beam alignment, spectroscopy, and faster prototyping in biomedical systems.