Patent EP0762691A2 successfully refreshed from Google Patents.
EP0762691A2
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EP
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Method and device for equalising the respective power levels of the channels of a spectrally multiplexed signal
Assignee: Alcatel Lucent SAS
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Filing: 1996-09-04
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Granted: —
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Expires: 2016-09-04
Abstract
Abstract The method involves use of an optical equalisation module (4) including an attenuator (5) adjusted by a monitor (6) which comprises a tunable photo-refractive filter (19) and a photodetector (21) with management logic (20). The attenuator has a convertor (17) which controls tunable photo-refractive filters (16a-16n) for different channels. The attenuator is followed by an Er-doped fibre amplifier (3) with multiplexers (10,11) of pumping waves from laser diodes (8,9) supplied with controlled currents from a regulator (12) in response to the level measured by a photodiode (13).
Inventors
- 👤 Dominique Bayart
- 👤 Bertrand Desthieux
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 17:22
CPC Classifications
H; H04; H04B; H04B10/00; H04B10/29; H04B10/291; H04B10/293; H04B10/294; H04B10/2941; H03; H03G; H03G3/00; H03G3/20; H03G3/30; H03G3/3084; H04J; H04J14/00; H04J14/02; H04J14/0221
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Total Claims: 0
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