Optical waveguide type star coupler
US5134672A · kind A · utility
9Cited by
5References
4Claims
0Family size
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Key dates
| Filing date | Apr 16, 1990 |
| Grant date | Jul 28, 1992 |
| Priority date | — |
| Expiry date | Apr 16, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/2804
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical waveguide star coupler includes a light propagating core provided on a substrate. An exciting light and a signal light are supplied to the light propagating core. The light propagating core includes a plurality of Y-branching waveguides connected one after another to provide a multi-stage waveguide structure. A signal light inputted in the core is combined during the propagation through the core with the exciting light so that the signal light is amplified.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.