Quartz optical waveguide and method for producing the same
US5243677A · kind A · utility
10Cited by
4References
3Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 10, 1992 |
| Grant date | Sep 7, 1993 |
| Priority date | — |
| Expiry date | Jul 10, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/122
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A quartz optical waveguide comprising a substrate, a ridge-form core part formed on said substrate and a part which surrounds said core part and has a lower refractive index than that of said core part, wherein a refractive index changes continuously at an interface between said core part and said part having the lower refractive index, which has a decreased transmission loss and a connection loss when connected with an optical fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.