Optical fiber-fixing substrate, method of producing the same and

Details Optical fiber-fixing substrate, method of producing the same and Optical fiber-fixing substrate, method of producing the same and

1997-07-25

1999-11-23

Ngo, Hung N.

Optical waveguides

Accessories

External retainer/clamp

385 83, 385 49, 385 88, 385 89, G02B 636

Patent

active

059914920

ABSTRACT:
The present invention aims to prevent formation of defect or break-off at ridges of fixing grooves of optical fiber-fixing substrates, when an optical fiber is received in the fixing groove or when an end surface of the substrate is polished by a grinding work. For that purpose, the ridges of the fixing grooves of the substrate have a curvature of radius of not less than 5 .mu.m over the entire portion of the ridges viewed in the lateral cross-sectional view of the fixing grooves. Preferably, the bottoms of the fixing grooves of the substrate have a curvature of radius of not more than 5 .mu.m viewed in the lateral crass-sectional view of the fixing groove. The fixing grooves may be produced by press forming.

REFERENCES:
patent: 3864018 (1975-02-01), Miller
patent: 4079927 (1978-03-01), Rocton
patent: 4088386 (1978-05-01), Hawk
patent: 4639074 (1987-01-01), Murphy
patent: 4875969 (1989-10-01), Hsu et al.
patent: 5018817 (1991-05-01), Suzuki et al.
patent: 5247598 (1993-09-01), Takimoto et al.
patent: 5644667 (1997-07-01), Tabuchi
patent: 5793914 (1998-08-01), Sasaki

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