High power multiwavelength light source

A multi-wavelength light source comprises a length of optical waveguide 11 including an optical amplifier such as a length of rare-earth (e.g. erbium) doped fibre. At one end of the amplifier waveguide 11 is a multi-wavelength reflector 15 such as an array of reflective filters, conveniently an arra...

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Bibliographic Details
Main Authors JUDKINS, JUSTIN BOYD, WYSOCKI, PAUL FRANCIS, DEMARCO, JOHN JOSEPH
Format Patent
LanguageEnglish
French
German
Published 12.09.2001
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
DEVICES USING STIMULATED EMISSION
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
MULTIPLEX COMMUNICATION
TRANSMISSION
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Summary:A multi-wavelength light source comprises a length of optical waveguide 11 including an optical amplifier such as a length of rare-earth (e.g. erbium) doped fibre. At one end of the amplifier waveguide 11 is a multi-wavelength reflector 15 such as an array of reflective filters, conveniently an array of reflective Bragg gratings formed in the waveguide. A source of broadband light, preferably consisting of the amplifier waveguide itself, coupled to a pumping source 12 to provide amplified stimulated emission, is directed towards the reflector 15. Multi-wavelength light is reflected by the reflector 15 and passes through the amplifier waveguide 11 a second time.
Bibliography:Application Number: EP19990300950