Device with optical fibre amplifier
US6252699A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 2, 1999 |
| Grant date | Jun 26, 2001 |
| Priority date | — |
| Expiry date | Jan 2, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2301/06
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A device with an optical fiber amplifier, wherein a control circuit is provided for stabilizing the amplification. In the control circuit, a supplemental optical signal (z) is supplied to the input of the fiber amplifier within its optical amplification bandwidth. The level of the former is controlled by a control member (Q), to whose first input a first measuring signal (m1) is supplied, which represents the level of an optical signal, amplified by the fiber amplifier (V), from a first area of the amplification bandwidth. A second measuring signal (m2) is present at the second input of the control member, which represents the level of a not yet amplified optical signal from the second area of the amplification bandwidth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.