Optical fiber-fixing substrate, method of producing the same and optical device
US5991492A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 25, 1997 |
| Grant date | Nov 23, 1999 |
| Priority date | — |
| Expiry date | Jul 25, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/3854
- WIPO fieldOptics
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.