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Optics InfoBase > Conference Papers > PEMD > 2003 > ALS > Page 557 © 2003 OSA

Conference Paper
Photorefractive Effects, Materials, and Devices
La Colle sur Loup France
June 17, 2003
ISBN: 1-55752-755-5
Application: Laser Source (ALS)

Application of a self-organizing photorefractive filter to the expansion of the single-mode operation range of tunable extended-cavity semiconductor lasers

Antoine Godard, Gilles Pauliat, Gérald Roosen, Eric Ducloux, and Jean-Luc Ayral

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Abstract

Commercial 1.55-μm extended-cavity semiconductor lasers provide single-mode operation that can be continuously tuned over a range larger than 100 nm without mode hopping. But, such performances require delicate factory adjustments and a high mechanical stability of the external cavity. Furthermore, at high emission power, the tuning range is limited to smaller values because of annoying multimode operations. Previously, we showed that the alignment constraints can be relaxed by use of an intracavity photorefractive filter. Here, we present new results obtained using a crystal with low absorption and high photorefractive gain. We demonstrate that, without inducing excessive additional loss, single-mode emission is preserved at output power higher than the maximum power obtained in the absence of crystal, in the full tuning range of the laser.

© 2003 Optical Society of America

OCIS Codes
(140.3570) Lasers and laser optics : Lasers, single-mode
(140.3600) Lasers and laser optics : Lasers, tunable
(140.5960) Lasers and laser optics : Semiconductor lasers
(160.5320) Materials : Photorefractive materials
(190.5970) Nonlinear optics : Semiconductor nonlinear optics including MQW
(190.7070) Nonlinear optics : Two-wave mixing

Citation
A. Godard, G. Pauliat, G. Roosen, E. Ducloux, and J. Ayral, "Application of a self-organizing photorefractive filter to the expansion of the single-mode operation range of tunable extended-cavity semiconductor lasers," in Photorefractive Effects, Materials, and Devices, P. Delaye, C. Denz, L. Mager, and G. Montemezzani, eds., Vol. 87 of OSA Trends in Optics and Photonics (Optical Society of America, 2003), paper 557.
http://www.opticsinfobase.org/abstract.cfm?URI=PEMD-2003-557


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