Wavelength selecting method in wavelength tunable laser and wave

Details Wavelength selecting method in wavelength tunable laser and wave Wavelength selecting method in wavelength tunable laser and wave

1996-12-19

1998-11-10

Healy, Brian

Coherent light generators

Particular beam control device

Q-switch

372 19, 372 23, 372 27, 372 32, 372105, H01S 3117

Patent

active

058355120

ABSTRACT:
An object of the present invention is to electrically tune and control an oscillating wavelength of a laser at high rate having a good reproducibility without providing any mechanically movable section in the laser resonator. To achieve the object, a laser oscillator is provided comprising a laser resonator composed of a mirror on the output side and a total reflection mirror, a Ti:Al.sub.2 O.sub.3 laser crystal disposed in the laser resonator, an acousto-optic crystal disposed in the laser resonator and to which are inputted the outputting light rays from the Ti:Al.sub.2 O.sub.3 laser crystal, a piezoelectric element mounted on the acousto-optic crystal to input acoustic waves thereto, and a diffraction light ray correcting prism disposed in the laser resonator and for correcting an angle of deflection of the diffraction light rays outputted from the acousto-optic crystal.

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