Optical device
US7551820B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2008 |
| Grant date | Jun 23, 2009 |
| Priority date | — |
| Expiry date | Feb 22, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2201/58
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical device including (a) a substrate having an electro-optic effect; (b) an optical waveguide formed on a surface layer portion of said substrate and including an optical waveguide for performing optical modulation for light inputted to said substrate and an output optical waveguide and a monitoring optical waveguide branched from and connected to a downstream side portion of said modulating optical waveguide, said monitoring optical waveguide guiding light for monitoring optical modulation operation of said modulating optical waveguide; and (c) a reflecting portion being provided on the downstream side of said monitoring optical waveguide for reflecting light propagated along said monitoring optical waveguide, the width of a reflection face of said reflecting portion being substantially equal to the cut-out width of said monitoring optical waveguide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.