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Proceedings Paper

Heterojunction Waveguide Photodetectors
Author(s): J E. Bowers; C A Burrus
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Paper Abstract

Conventional PIN detectors have bandwidth efficiency products of up to 38 GHz. This product is primarily limited by the hole transit time through the depleted layer. We describe a pInP/nInGaAsP/nInP heterojunction waveguide PIN photodetector that provides for light absorption perpendicular to current collection, a feature that results in high-speed, high-efficiency and relatively bias-insensitive operation. The 30 μm waveguide length corresponds to 6 absorption lengths, assuming an optical confinement of 30% and a material absorption coefficient of 0.7 μm.-1 Our uncoated, packaged device has an impulse response of 40 ps (Tektronix S-4 sampling head) and efficiency of 25% at zero bias.

Paper Details

Date Published: 23 February 1987
PDF: 7 pages
Proc. SPIE 0716, High Frequency Optical Communications, (23 February 1987); doi: 10.1117/12.937460
Show Author Affiliations
J E. Bowers, AT&T Bell Laboratories (United States)
C A Burrus, AT&T Bell Laboratories (United States)

Published in SPIE Proceedings Vol. 0716:
High Frequency Optical Communications
O. Glenn Ramer; Paul Sierak, Editor(s)

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