Patent EP0409177A2 successfully refreshed from Google Patents.
EP0409177A2
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EP
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Optical feedback amplifier
Assignee: Siemens AG
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Filing: 1990-07-17
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Granted: —
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Expires: 2010-07-17
Abstract
Abstract Arrangement for operating as an optical feedback amplifier, consisting of a DFB laser whose grid (4) selects a wavelength which differs so much from the wavelength at which the amplifying medium has maximum gain that by progressively extinguishing the emission at said wavelength selected by the grid in conjunction with external optical irradiation via coupled optical fibres (1, 10) of light having a wavelength in the vicinity of the wavelength of the maximum gain of the amplifying medium, a constant gain effect is achieved at said irradiated wavelength. <IMAGE>
Inventors
- 👤 Robert Dr.-Ing Schimpe
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 20:15
CPC Classifications
H; H01; H01S; H01S5/00; H01S5/50; H01S5/5045; H01S3/00; H01S3/09; H01S3/091; H01S3/094; H01S3/094003; H01S5/06; H01S5/0607; H01S5/0608; H01S5/0609; H01S5/0611; H01S5/062; H01S5/0625; H01S5/06255; H01S5/06258; H01S5/10; H01S5/12; H01S5/1221; H01S5/18; H01S5/183; H01S5/5063; H01S5/5072
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