Patent ID: 6590910
Filing Date: 2003-07-08
Classification: H01S

Abstract:
A device, comprising:a fiber ring to circulate optical energy, said fiber ring having a first fiber portion and a second fiber portion that have opposite signs in chromatic dispersion; a fiber gain portion in said fiber ring which is responsive to optical pumping by light at a pump wavelength to produce an optical gain at a laser wavelength different from said pump wavelength; a dispersion control unit in said fiber ring to modify a dispersion of an optical pulse in said fiber ring in response to a dispersion control signal; an optical modulator in said fiber ring responsive to a modulator control signal to modulate a property of said optical pulse at a modulation frequency to lock different optical modes in said fiber ring; and an output coupler in said fiber ring to couple a portion of optical energy at said laser wavelength to produce a pulsed laser output.