Angular dispersion amplification method and apparatus for optical demultiplexing
US7139447B1 · kind B1 · utility
1Cited by
10References
32Claims
0Family size
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Key dates
| Filing date | Apr 19, 2002 |
| Grant date | Nov 21, 2006 |
| Priority date | — |
| Expiry date | Jul 23, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/141
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical demultiplexer, having an angular dispersion generator followed by an angular amplifier. The angular dispersion generator disperses an incident optical signal into a plurality of channels. While traveling through the angular dispersion amplifier, the channels with incident angles larger than a critical angle are internally totally reflected, and the channels with incident angles smaller than the critical angle are partly reflected, and partly transmitting into an ambient medium. The transmitting part of the channels are thus further dispersed and demultiplexed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.