Optical device with an optical coupler for effecting light branching and/or combining and an optical amplifier
US5369719A · kind A · utility
13Cited by
8References
44Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 16, 1992 |
| Grant date | Nov 29, 1994 |
| Priority date | — |
| Expiry date | Jun 16, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/026
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A first light waveguide is formed, and second and third light waveguides are respectively connected to the first light waveguide at first and second positions. A first coupler for effecting tight branching and/or combining is arranged near the first position, and a second coupler for effecting light branching and/or combining is arranged near the second position. An optical amplifier is arranged on the first light waveguide between the first and second positions for compensating for a light loss of a light wave caused by each of the first and second coupler.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.