Effective optical path length compensable optical device
US6337931B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 30, 1998 |
| Grant date | Jan 8, 2002 |
| Priority date | — |
| Expiry date | Mar 30, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12145
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention relates to an optical device to be used for, for example, terminal apparatus or repeating installations of optical communication systems. In order to reduce an inter-polarization error of an optical signal taking place at input of an optical signal with a high bit rate to enhance the optical signal communication accuracy, the optical device is constructed such that optical waveguides are formed on substrates each having a double refraction, and the two inter-polarization effective optical path lengths for the optical signal are made to be equal to each other at the optical signal propagation in the optical waveguides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.