Second harmonic generating apparatus and apparatus employing las

Details Second harmonic generating apparatus and apparatus employing las Second harmonic generating apparatus and apparatus employing las

1997-04-18

1998-05-26

Scott, Jr., Leon

Coherent light generators

Particular beam control device

Nonlinear device

372 92, 372 98, 372105, H01S 310

Patent

active

057578273

ABSTRACT:
A second harmonic generating apparatus including a semiconductor laser serving as a pumping source, a resonator structure for oscillating a first radiation wave generated by LiSAF (Cr:LiSrAlF.sub.6 : Lithium strontium aluminum fluoride with chromium added) crystal which is a solid-state laser crystal which is excited by the pumping source, a control element for controlling the wavelength of the first oscillation wave, and a nonlinear crystal for performing wavelength conversion into second harmonic which is a second oscillation wave, with the first oscillation wave serving as a fundamental wave, the nonlinear crystal being provided in the resonator. A higher efficiency and reliability of the second harmonic generating apparatus is achieved.

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