9 October 1998 Photosensitivities in germanium-doped planar waveguides and dye-doped polymer optical fibers
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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.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Pak Lim Chu, Pak Lim Chu, Gang-Ding Peng, 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); doi: 10.1117/12.326850; https://doi.org/10.1117/12.326850


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