Laser oscillating apparatus and method of driving laser beam sou

Details Laser oscillating apparatus and method of driving laser beam sou Laser oscillating apparatus and method of driving laser beam sou

1996-05-20

1998-10-20

Bovernick, Rodney B.

Coherent light generators

Particular pumping means

Pumping with optical or radiant energy

372 22, H01S 3091, H01S 3094

Patent

active

058257985

ABSTRACT:
The present invention relates to a laser oscillating apparatus using a semiconductor laser or the like and a method of driving a laser beam source. The present invention relates particularly to a laser oscillating apparatus or the like having a nonlinear optical medium for generating a second harmonic and capable of by-pulse driving a laser beam source with high efficiency. In the laser oscillating apparatus, a optical resonator is composed of at least a laser crystal and an output mirror. The nonlinear optical medium for generating the second harmonic is inserted into the optical resonator. The laser beam source can effect pumping on the optical resonator so that the period T of a drive pulse produced from a pulse driving means satisfies a relation in .tau..sub.FL >T-.tau. with respect to .tau..sub.FL (fluorescence lifetime). Further, a first pulse can drive the laser beam source with the degree of not leading to the emission of a laser beam and a second pulse can drive the laser beam source so that the laser beam source produces the laser beam.

REFERENCES:
patent: 5084879 (1992-01-01), Suzuki et al.
patent: 5285467 (1994-02-01), Scheps

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