Alcatel

Thales

Xavier Normandin

Dominique Bayart

Carlos Luis De Barros

Ludovic Perruchot

Thierry Midavaine

Bertrand Forestier

Yves Courcol

Thierry Lopez

Baya Bennai

The present invention relates to a cascaded multi-wavelength Raman fiber laser adapted for emitting radiation of at least one wavelength &lgr; , with a length of optical fiber ( ) having input ( ) and output ( ) sections, means ( ) for introducing pump radiation of wavelength &lgr; into said length of optical fiber ( ), at least one pair of spaced-apart reflector means ( ), defining an optical cavity belonging to said optical fiber, each of said reflector means having a center wavelength, the reflector means of each pair being located respectively at said input section ( ) and said output section ( ) of said optical fiber and at least one of said pairs of reflector means having its reflector means located at said output section ( ), called output reflector means ( ), having a lower reflectivity at said center wavelength than the corresponding reflector means of the same pair ( ) located at said input section ( ), so as to emit radiation of said output wavelengths out of said optical fiber ( ).

Cascaded Raman fiber laser, and optical system including such a laser

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Bures S/Yvette, France

Xavier Normandin