OPTICAL AMPLIFIER

An optical circulator (4) is inserted at a portion of an optical amplifying fiber (2). Reflecting means (8) is provided to the optical circulator (4) so that wavelength-multiplexed light inputted to the optical amplifying fiber (2) is subject to selection of wavelength by the reflecting means (8), a...

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Bibliographic Details
Main Authors OGOSHI, HARUKI, TASHIRO, YOSHIO
Format Patent
LanguageEnglish
French
German
Published 11.08.1999
Edition6
Subjects
BASIC ELECTRIC ELEMENTS
DEVICES USING STIMULATED EMISSION
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
MULTIPLEX COMMUNICATION
TRANSMISSION
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Summary:An optical circulator (4) is inserted at a portion of an optical amplifying fiber (2). Reflecting means (8) is provided to the optical circulator (4) so that wavelength-multiplexed light inputted to the optical amplifying fiber (2) is subject to selection of wavelength by the reflecting means (8), appropriately attenuated by the reflectance set for every wavelength to the reflecting means (8), amplified, and outputted from the optical amplifying fiber (2) as a signal light having no intensity variation between channels.
Bibliography:Application Number: EP19980911143