Photosensitivities in germanium-doped planar waveguides and dye-doped polymer optical fibers

Pak Lim Chu; Gang-Ding Peng

doi:10.1117/12.326850

9 October 1998 Photosensitivities in germanium-doped planar waveguides and dye-doped polymer optical fibers

Pak Lim Chu, Gang-Ding Peng

Proceedings Volume 3470, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications IV; (1998) https://doi.org/10.1117/12.326850
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

The refractive index of Germanium-doped planar waveguides can be changed when it is exposed to UV light. Furthermore, if the waveguide is bombarded by ions during exposure, a negative index change is obtained. If the waveguide is not bombarded by ions, positive change in index results. In a dye-doped polymer fiber, large index change is obtained due to the photosensitivity effect of the dye, in our case, fluorescein. However, the basic material, PMMA, is also photosensitive.

Citation Download Citation

Pak Lim Chu and Gang-Ding Peng "Photosensitivities in germanium-doped planar waveguides and dye-doped polymer optical fibers", Proc. SPIE 3470, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications IV, (9 October 1998); https://doi.org/10.1117/12.326850

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