All-fiber chirped pulse amplification systems
AssigneeImra America, Inc.
InventorMartin E. Fermann
Life of this patent
Estimating the term…
Abstract
By compensating polarization mode-dispersion as well chromatic dispersion in photonic crystal fiber pulse compressors, high pulse energies can be obtained from all-fiber chirped pulse amplification systems. By inducing third-order dispersion in fiber amplifiers via self-phase modulation, the third-order chromatic dispersion from bulk grating pulse compressors can be compensated and the pulse quality of hybrid fiber/bulk chirped pulse amplification systems can be improved. Finally, by amplifying positively chirped pulses in negative dispersion fiber amplifiers, a low noise wavelength tunable seed source via anti-Stokes frequency shifting can be obtained.
Claims23
A chirped pulse amplification system, comprising:
- a seed pulse source producing short optical pulses;
- a chirped fiber Bragg grating pulse stretcher system (CFBGS) for stretching the pulses;
- a plurality of concatenated sections of predominantly polarization maintaining fiber, at least one which is also an amplifier;
- and
- at least one chirped fiber Bragg grating compressor,
- wherein said chirped fiber Bragg grating pulse stretcher system (CFBGS) is arranged such that self-phase modulation (SPM) induced in one or more fiber elements of said chirped pulse amplification system is compensated via modification of a dispersion of a fiber grating disposed in said CFBGS.
A chirped pulse amplification system, comprising:
- a chirped fiber Bragg grating pulse stretcher system (CFBGS), said chirped fiber Bragg grating pulse stretcher system configured to produce stretched pulses;
- at least one amplifier following said stretcher system;
- and
- a pulse compressor configured to compress said stretched pulses from said amplifier to produce compressed pulses,
- wherein at least a portion of said chirped fiber Bragg grating pulse stretcher system (CFBGS) is arranged such that self-phase modulation (SPM) induced in one or more fiber elements of the chirped pulse amplification system is compensated via modification of a dispersion of a grating disposed in said CFBGS.
Dependencies are inferred from the claim text.