Optical waveguide apparatus
US7289702B2 · kind B2 · utility
2Cited by
1References
17Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Feb 13, 2003 |
| Grant date | Oct 30, 2007 |
| Priority date | — |
| Expiry date | Sep 7, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/2938
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides an optical module using optical waveguides which permits easy fabrication of a PLC type optical multiplexer/demultiplexer with reduced loss. The optical module comprises cores which are contiguous to each other through a dicing groove adapted to position and fix an optical functional part such as a wavelength selection filter and a core branched from the said cores. A slight gap is present between the former and the latter core and both cores are narrower in width in the vicinity of the dicing groove than the other portions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.