Optical waveguides – With optical coupler – Particular coupling structure
Patent
1995-07-21
1997-04-29
Palmer, Phan T. H.
Optical waveguides
With optical coupler
Particular coupling structure
385 51, 385 50, 385 98, G02B 630
Patent
active
056257309
ABSTRACT:
This invention relates to an optical waveguide module having stable temperature characteristics and moist heat characteristics even in a severe environment. This optical waveguide module includes a waveguide component having an optical waveguide on a waveguide substrate made of silicon or silica glass as the first material, and a ferrule made of a plastic material as the second material. An end face of an optical fiber is fixed by adhesion while it is inserted in a through hole of the ferrule, the through hole having a continuous inner wall. This ferrule is fixed with an adhesive having a predetermined strength so that its the end face opposes the end face of the waveguide component. The second material satisfies a relationship:
REFERENCES:
patent: 4744619 (1988-05-01), Cameron
patent: 4902732 (1990-02-01), Itoh et al.
patent: 5185835 (1993-02-01), Vial et al.
patent: 5199093 (1993-03-01), Longhurst
Yamada et al, "Low-Loss and Stable Fiber-to-Waveguide Connection Utilizing UV Curable Adhesive", IEEE Photonics Technology Letters, vol. 4, No. 8, Aug. 1992, pp. 906-908.
Ishikawa Shinji
Saito Masahide
Semura Shigeru
Palmer Phan T. H.
Sumitomo Electric Industries Ltd.
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