NARROW-BAND FIBER LASERS OF GREAT POWER WITH EXPANDED RANGE OF WAVE LENGTHS Russian patent published in 2006 - IPC H01S3/67 

FIELD: the invention refers to the mode of receiving fiber resounding cavities for narrow-band fiber lasers of great power by way of using short fibers and suppression of forced Mandelshtam-Brilluen scattering.

SUBSTANCE: a fiber laser has an optical light guide, a laser as a source of pumping, the first pair of Bragg's grates, the second pair of Bragg's grates. The fiber light guide has an active medium. The first pair of Bragg's grates forms the first resonator. The second pair of Bragg's grates resounds on the output of the wave length of the fiber laser.

EFFECT: fiber laser of a relatively great power and with a narrow width of spectral lines for an expanded range of the wave lengths for an expanded range of wave lengths in the visible and the near infrared fields of the spectrum, increase of the width of the field of the spectrum of regeneration of coherent optical emission available for a Raman fiber laser, increase of amplification of Raman's forced scattering for receiving of great power of regeneration of coherent optical radiation from a doped fiber.

15 cl, 4 dwg