1 April 1990 Optical waveguides in the computer environment: a packaging perspective
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Polyimides have been experimentally studied for their potential application in optical interconnection networks. A total of nine commerically availables polyimides were evaluated in the form of planar slab optical waveguides. Analysis included measurement of optical properties such as transmission spectra, refractive index and loss. From this preliminary evaluation, four polyimides emerged as promising for application as channel optical waveguides. With these materials, multimode channel waveguides were fabricated with one of three methods, laser writing by thermal curing, laser writing with visible radiation in photosensitive polyimide and photolithography by contact printing, also in photosensitive polyimide. All three methods were relatively successful, yielding uniform, straight channels. Loss measurements suggest that laser writing by thermal curing has the potential to form waveguides with the lowest loss. However, attenuation in all cases was relatively high, typically 5 - 10 db/cm at 633 nm.
© (1990) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Modest M. Oprysko, Modest M. Oprysko, } "Optical waveguides in the computer environment: a packaging perspective", Proc. SPIE 1213, Photopolymer Device Physics, Chemistry, and Applications, (1 April 1990); doi: 10.1117/12.18011; https://doi.org/10.1117/12.18011

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