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Proceedings Paper

2.2 micron, uncooled, InGaAs photodiodes, and balanced photoreceivers up to 25 GHz bandwidth
Author(s): Abhay Joshi; Shubhashish Datta; Mike Lange
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Paper Abstract

We report lattice-mismatched, uncooled, 2.2 µm wavelength cutoff, InGaAs photodiodes and balanced photoreceivers with bandwidth up to 25 GHz. The responsivity at 2.05 µm is 1.2 A/W, and the 1 dB compression, optical current handling of these photodiodes is 10 mA at 7 V reverse bias. Such high current handling capacity allows these photodiodes to operate with a higher DC local oscillator (LO) power, thus, allowing more coherent gain and shot noise limited operation. The impulse response of these devices show rise time / fall time of ~15 ps, and full width half maximum of ~20 ps.

Paper Details

Date Published: 18 June 2013
PDF: 8 pages
Proc. SPIE 8704, Infrared Technology and Applications XXXIX, 87042G (18 June 2013); doi: 10.1117/12.2015593
Show Author Affiliations
Abhay Joshi, Discovery Semiconductors, Inc. (United States)
Shubhashish Datta, Discovery Semiconductors, Inc. (United States)
Mike Lange, Discovery Semiconductors, Inc. (United States)


Published in SPIE Proceedings Vol. 8704:
Infrared Technology and Applications XXXIX
Bjørn F. Andresen; Gabor F. Fulop; Charles M. Hanson; Paul R. Norton; Patrick Robert, Editor(s)

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