Creation of microchannels in a photosensitive As2S3 slab waveguide

Nicolas Ho; Jacques M Laniel; Real Vallee; Alain Villeneuve

doi:10.1117/12.473814

17 February 2003 Creation of micro-channels in a photosensitive As₂S₃ slab waveguide

Nicolas Ho, Jacques M Laniel, Real Vallee, Alain Villeneuve

Proceedings Volume 4833, Applications of Photonic Technology 5; (2003) https://doi.org/10.1117/12.473814
Event: Applications of Photonic Technology 5, 2002, Quebec City, Canada

Abstract

The creation of microchannels in a photosensitive material, the arsenic trisulphide As₂S₃, is reported. It is shown that microchannels are created through the process of self-writing and are very sensitive to the photosensitivity of the material, the quality of the incident wavefront and the light intensity. The very large photosensitivity of As₂S₃ allows for the self-written waveguide to become much smaller than the incident beam. It can indeed be as small as 1 micron wide. We present a numerical analysis based on the nonlinear Schroedinger equation that accounts well for the diversity of the microchannels experimentally observed. It is also shown that the microchannels can actually guide light efficiently.

Citation Download Citation

Nicolas Ho, Jacques M Laniel, Real Vallee, and Alain Villeneuve "Creation of micro-channels in a photosensitive As₂S₃ slab waveguide", Proc. SPIE 4833, Applications of Photonic Technology 5, (17 February 2003); https://doi.org/10.1117/12.473814

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