Patent ID: 6657775
Filing Date: 2003-12-02
Classification: H01S

Abstract:
A Raman amplifier, comprising:an array of gain elements being operable to provide a plurality of output beams; a collimator being operable to cause said plurality of output beams to spatially overlap on a dispersive element and being operable to cause feedback received from said dispersive element to be directed to said array of gain elements; said dispersive element being operable to direct said output beams to a partially reflective component and being operable to cause feedback received from said partially reflective component to be directed to said collimator; said partially reflective component being operable to allow transmission of a portion of power of said output beams from said dispersive element and being operable to reflect a portion of power of said output beams to said dispersive element as feedback; and an optical fiber being operable to receive an output optical signal comprising power from at least said portion of power transmitted by said partially reflective component to generate optical gain in said optical fiber wherein said output optical signal possesses sufficient linewidth to avoid stimulating appreciable Brillouin scattering in said optical fiber.