5.2-5.6-μm source tunable by frequency conversion in a GaAs-based waveguide

被引：30

作者：

Bravetti, P

Fiore, A

Berger, V

Rosencher, E

Nagle, J

Gauthier-Lafaye, O

机构：

[1] Thomson CSF, Cent Rech Lab, F-91404 Orsay, France

[2] Univ Paris 11, URA CNRS 22, Inst Elect Fondamentale, F-91404 Orsay, France

来源：

OPTICS LETTERS | 1998年 / 23卷 / 05期

关键词：

D O I：

10.1364/OL.23.000331

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A tunable mid-IR source obtained by difference-frequency generation is demonstrated in a selectively oxidized GaAs-AlAs multilayer waveguide. We designed the waveguide to present the required form birefringence for phase matching of the nonlinear interaction. We took special care to lower losses for the mid-IR radiation. IR tunability from 5.2 to 5.6 mu m was achieved by variation of the waveguide temperature and one pump wavelength. IR output power as great as 0.12 mu W was obtained with the product of two pump powers of 7 mW(2). Losses of similar to 50 cm(-1) were measured for the mid-IR radiation. These losses are attributed to surface scattering. (C) 1998 Optical Society of America.

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页码：331 / 333

页数：3

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