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Cryogenic Behavior of Optoelectronic Devices for the Transmission of Analog Signals Via Fiber OpticsCamin, D.V.; Grassi, V.
IEEE transactions on nuclear science, 12/2006, Letnik: 53, Številka: 6Journal Article
The transmission of analog signals via fiber optics is a subject of interest for applications with detectors operating at cryogenic temperature, at ground or on space borne instruments. For those detectors, both thermal and galvanic decoupling shall be required. For a better understanding of the cryogenic performance of cooled optoelectronic devices, we have investigated an infrared AlGaAs LEDs, a Si p-i-n photodiode, a Si photodiode, and an avalanche photodiode (APD). Results of a study related to the photodiode's dark currents at low temperature is presented. In fact, we have clearly measured a strong reduction of the dark current when these devices are cooled down
