Optical signal network with node by-pass switching capability
US4815803A · kind A · utility
29Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 1986 |
| Grant date | Mar 28, 1989 |
| Priority date | — |
| Expiry date | Jun 26, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/3546
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A node of an optical transmission network, for example a local area network, has a combined by-pass switch and optical modulator. The by-pass switch and modulator (45) comprises an optical switching matrix with two non-intersecting waveguides (W1, W2) connected by a further waveguide (W3). The junctions between the non-intersecting waveguides and the further waveguide perform both modulation of an optical carrier signal and re-routeing of the transmission path along the network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.