We describe the effect of UV photobleaching of poled polymer and silica films and the application of UV photobleaching to waveguide-type optical devices. Disperse Red 1-doped poled polymer and silica films with large and stable second-order nonlinearity were used as nonlinear optical materials. We investigated the mechanism of UV photobleaching of poled films by the changes in absorption spectrum and nonlinearity and refractive index. Moreover, simple fabrication of both the channel waveguide and the χ<sup>(2)</sup> diffraction grating based on UV photobleaching is demonstrated.
© 1998 Optical Society of America
(160.5470) Materials : Polymers
(190.0190) Nonlinear optics : Nonlinear optics
(190.4710) Nonlinear optics : Optical nonlinearities in organic materials
(230.7370) Optical devices : Waveguides
Makoto Nakanishi, Okihiro Sugihara, Naomichi Okamoto, and Kazuo Hirota, "Ultraviolet Photobleaching Process of Azo Dye Doped Polymer and Silica Films for Fabrication of Nonlinear Optical Waveguides," Appl. Opt. 37, 1068-1073 (1998)