High-power fiber laser amplifier and fiber laser oscillator

Details High-power fiber laser amplifier and fiber laser oscillator High-power fiber laser amplifier and fiber laser oscillator

2008-05-06

2008-05-06

Nguyen, Dung (Michael) T. (Department: 2828)

Coherent light generators

Optical fiber laser

C372S070000

Reexamination Certificate

active

11567010

ABSTRACT:
A high-power fiber laser amplifier with a laser wavelength of about 1060 to 1100 nm and an average laser power of more than about 500 W and an almost diffraction-limited beam quality (M2<1.5) comprises a double-clad laser fiber that has a separate, laser-active fiber core with an outer diameter of at least 20 μm and a pump core that surrounds the fiber core and has an outer diameter of at least 50 μm, and ytterbium-doped solid state laser that emits pump light with a wavelength of approximately 1030 nm, a beam quality of M2< of approximately 30 and a laser power of at least approximately 600 watts, for pumping the double-clad laser fiber.

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Copy of International Search Report for corresponding PCT application serial No. PCT/EP2005/005970, 3 pages.

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