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Long-wavelength transimpedance optical receiver performance enhancement using cooled germanium avalanche photodiodes

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2 Author(s)
S. D. Walker ; British Telecom Research Laboratories, Ipswich, UK ; L. C. Blank

An optical sensitivity improvement of 1.5 dB was produced by moderate cooling of a commercially available 100 ¿m p+-n Ge APD in a transimpedance receiver, built on a standard printed circuit board. At 1.3 ¿m and 140 Mbaud, ¿45.2 dBm was achieved, making this receiver highly competitive where cooling is permitted.

Published in:

Electronics Letters  (Volume:20 ,  Issue: 1 )