Single-mode optical fiber tap
US4883335A · kind A · utility
15Cited by
2References
8Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jan 20, 1988 |
| Grant date | Nov 28, 1989 |
| Priority date | — |
| Expiry date | Jan 20, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/2821
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical power tap is disclosed which allows effectively nonreciprocal injection and removal of power at each node of a single-mode optical fiber local area network. The power tap uses a wavelength-selective directional coupler to inject and remove power from the bus, and a nonlinear converter in the bus to convert light from one wavelength to another. In the specific embodiment disclosed a neodymium-doped silica fiber is used as a nonlinear material to convert light from one wavelength to another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.