Demultiplexing apparatus and optical communication system using the demultiplexing apparatus
US5379142A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 21, 1993 |
| Grant date | Jan 3, 1995 |
| Priority date | — |
| Expiry date | Dec 21, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/29397
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A polarization-independent wavelength demultiplexing apparatus for demultiplexing a light beam of at least one predetermined wavelength, includes a first demultiplexer for demultiplexing the light beam at a predetermined wavelength to obtain a component of the light beam in a first polarization state and second demultiplexer for demultiplexing the light beam at the predetermined wavelength to obtain a component of the light beam in a second polarization state, different from the first polarization state. The first demultiplexer and the second demultiplexer are arranged in a serial manner or in a parallel manner with respect to light transmitted through the demultiplexing structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.