Fiber source for seeding an ultrashort optical pulse amplifier

Details Fiber source for seeding an ultrashort optical pulse amplifier Fiber source for seeding an ultrashort optical pulse amplifier

1995-04-24

1996-06-25

Hellner, Mark

Optical: systems and elements

Optical amplifier

359341, 359184, H01S 300, H04B 1004

Patent

active

055305822

ABSTRACT:
An apparatus for seeding a solid-state, ultrashort optical pulse amplifier system comprises an excitation source that pumps a gain medium which is restricted to the core of an optical fiber. The gain medium is disposed in a resonant cavity with components arranged to produce ultrashort pulses of light at a fundamental wavelength. Such systems are well known to those skilled in the art. These ultrashort pulses are then frequency-doubled in a non-linear crystal to produce a seed pulse whose doubled frequency substantially matches that of the amplifier gain medium. These seed pulses are then injected into the amplifier wherein they are amplified.

REFERENCES:
patent: 3875422 (1975-04-01), Stolen
patent: 5162940 (1992-10-01), Brandelik
patent: 5309535 (1994-05-01), Bergano et al.
Technique for obtaining high-energy ultrashort pulses from an additive-pulse mode-locked erbium-doped fiber ring laser. K. Tamura, et al. Reprint from Optics Letters, vol. 1, Jan. 1, 1994.

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