US Patent 7321703 Optical device

Patent 7321703 was granted and assigned to NGK Insulators on January, 2008 by the United States Patent and Trademark Office.

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Patent Inventor Names

Akiyoshi Ide0

Masashi Fukuyama0

Yasunori Iwasaki0

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Patent abstract

An optical device includes an optical fiber having a core and a cladding, a slit extending from the upper surface of the optical fiber into a glass substrate, a filter member inserted in the slit, and a PD array for detecting divided light. A first high-polymer gel material fills a gap between the slit and a filter member within the slit. A second high-polymer gel material is interposed between an optical fiber array and the PD array and disposed on an optical path of the light divided by the filter member.

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