Patent ID: 9236704
Filing Date: 2016-01-12
CPC Classification: G02B,H01S,Y10T

Claim Text:
1. An optical fiber amplifier with high Brillouin threshold comprising: an amplifying optical fiber comprising a core and a cladding, which is suitable for the amplification of a signal beam propagating in said core; a first coupling device for coupling a signal beam in an input end of said amplifying optical fiber, a second coupling device for coupling a laser pump beam for the pumping of said amplifying optical fiber, a structure comprising a deformable part around which at least one part of said amplifying optical fiber is wound in the form of coils, said coils being in contact with a surface of said deformable part, the rubbing of said optical fiber on said surface causing during the deformation of said deformable part an elongation of said amplifying optical fiber according to an elongation profile varying from one coil to the next.