Title

Two-photon photovoltaic effect in gallium arsenide

Authors

Authors

J. C. Ma; J. Chiles; Y. D. Sharma; S. Krishna;S. Fathpour

Comments

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Abbreviated Journal Title

Opt. Lett.

Keywords

NONLINEAR ABSORPTION; SILICON; GAAS; Optics

Abstract

The two-photon photovoltaic effect is demonstrated in gallium arsenide at 976 and 1550 nm wavelengths. A waveguide-photodiode biased in its fourth quadrant harvests electrical power from the optical energy lost to two-photon absorption. The experimental results are in good agreement with simulations based on nonlinear wave propagation in waveguides and the drift-diffusion model of carrier transport in semiconductors. Power efficiency of up to 8% is theoretically predicted in optimized devices. (C) 2014 Optical Society of America

Journal Title

Optics Letters

Volume

39

Issue/Number

18

Publication Date

1-1-2014

Document Type

Article

Language

English

First Page

5297

Last Page

5300

WOS Identifier

WOS:000341926500015

ISSN

0146-9592

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