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Optics Letters

Optics Letters


  • Vol. 28, Iss. 12 — Jun. 15, 2003
  • pp: 965–967

Photosensitivity of As2S3 chalcogenide thin films at 1.5 μm

Nicolas Hô, Jacques M. Laniel, RĆal Vallée, and Alain Villeneuve  »View Author Affiliations

Optics Letters, Vol. 28, Issue 12, pp. 965-967 (2003)

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Chalcogenide glasses are promising candidates for all-optical switching and various nonlinear applications. However, we show that As2S3 thin films are photosensitive at wavelengths in the 1.5-μm telecommunication window. This sensitivity is evidenced by the formation of self-written waveguides in slabs, where channels as narrow as 1μm are created. We also show the detrimental effects of such photosensitivity in ridge waveguides. This photosensitivity seems to occur only in thin-film form and not in bulk samples or fibers.

© 2003 Optical Society of America

OCIS Codes
(160.2750) Materials : Glass and other amorphous materials
(190.4390) Nonlinear optics : Nonlinear optics, integrated optics
(190.5940) Nonlinear optics : Self-action effects

Nicolas Hô, Jacques M. Laniel, RĆal Vallée, and Alain Villeneuve, "Photosensitivity of As2S3 chalcogenide thin films at 1.5 μm," Opt. Lett. 28, 965-967 (2003)

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