Photodetector/optical fiber apparatus with enhanced optical...

Optical waveguides – With optical coupler – Particular coupling structure

Reexamination Certificate

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C385S039000

Reexamination Certificate

active

06892010

ABSTRACT:
An optical thick film formed on a photodetector improves the optical coupling efficiency between the optical fiber and photodetector which are optically coupled. The optical thick film has a refractive index that is between the refractive index of air and the refractive index of photodetector upon which the optical matching coating is disposed. Silicone may advantageously be formed as the optical thick film coating on the photodetector.

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patent: 5905828 (1999-05-01), Jungerman
patent: 6409394 (2002-06-01), Ueda et al.
patent: 20020118917 (2002-08-01), Kawai

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