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Abbreviated Journal Title

Opt. Express

Keywords

Wave-Guide; Band-Gap; Electroabsorption Modulators; Quantum-Wells; Carrier Sweep; Absorption; Gaas/Algaas; Half; Autocorrelator; Algaas; Optics

Abstract

We report two-photon photocurrent in a GaAs/AlGaAs multiple quantum well laser at 1.55 mu m. Using 1ps pulses, a purely quadratic photocurrent is observed. We measure the device efficiency, sensitivity, as well as the two-photon absorption coefficient. The results show that the device has potential for signal processing, autocorrelation and possibly two-photon source applications at sub-Watt power levels.

Journal Title

Optics Express

Volume

17

Issue/Number

7

Publication Date

1-1-2009

Document Type

Article

Language

English

First Page

5298

Last Page

5310

WOS Identifier

WOS:000264747500045

ISSN

1094-4087

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