Optical amplifying repeater
US4886334A · kind A · utility
29Cited by
1References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 1, 1988 |
| Grant date | Dec 12, 1989 |
| Priority date | — |
| Expiry date | Sep 1, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/0683
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In an optical amplifying repeater, an input signal light which is propagated through a first transmission optical fiber is divided by an optical divider into a plurality of signal lights. Each of the signal lights is amplified in a corresponding optical amplifier among a plurality of optical amplifiers. The signal lights thus amplified are combined in an optical coupler to supply a second transmission optical fiber with a combined signal light. At least one of the optical amplifiers are controlled in its amplification gain so that a level of the combined signal light is held to be a predetermined value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.