Optical waveguide circuit
US7245793B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2003 |
| Grant date | Jul 17, 2007 |
| Priority date | — |
| Expiry date | Jun 29, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12195
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical waveguide circuit includes a first loss component for causing a diffraction loss of light propagating through an optical waveguide, and a second loss component provided at least one of before and after the first loss component, for causing a diffraction loss less than the diffraction loss in the first loss component to the light propagating through the optical waveguide. This enables the beam spot size of the lightwave launched into the first loss component to be magnified seemingly, and to reduce the radiation angle of the lightwave at the first loss component, thereby making it possible to reduce the excess loss involved in the propagation of the light through the optical waveguide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.