Optical self-inscription in waveguides and pattern formation in sol-gel derived nanophase organo-silica films

Mark P. Andrews; Nicolas Belanger; Shao-Wei Fu

doi:10.1117/12.628645

12 October 2005 Optical self-inscription in waveguides and pattern formation in sol-gel derived nanophase organo-silica films

Mark P. Andrews, Nicolas Belanger, Shao-Wei Fu

Author Affiliations +

Proceedings Volume 5970, Photonic Applications in Devices and Communication Systems; 59700H (2005) https://doi.org/10.1117/12.628645
Event: Photonics North, 2005, Toronto, Canada

Abstract

Photoresponsive nanocomposite organically modified silica (ORMOSIL) films were prepared by solution sol-gel processing of organically modified silicon alkoxide compounds. Waveguiding at 488 nm proceeds with simultaneous self-inscription and permanently inscribed waveguides can be revealed by wet etching. Under certain conditions, self-inscription becomes chaotic, and filamentation is observed. A counterpropagating beam set-up allows simple optical devices like crosses and y-junctions to be created. Soliton-like behavior is exhibited at low laser power where couterpropagating self-inscribed beams undergo mutual trapping. The ORMOSIL films exhibit interesting patterns which may be associated with the relief of stress in the films. These patterns can be controlled to some extent by depositing self-inscribed features in the glassy medium.

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Mark P. Andrews, Nicolas Belanger, and Shao-Wei Fu "Optical self-inscription in waveguides and pattern formation in sol-gel derived nanophase organo-silica films", Proc. SPIE 5970, Photonic Applications in Devices and Communication Systems, 59700H (12 October 2005); https://doi.org/10.1117/12.628645

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