Coherent light generators – Particular active media – Gas
Patent
1993-11-17
1995-06-06
Bovernick, Rodney B.
Coherent light generators
Particular active media
Gas
372 99, 372108, H01S 303
Patent
active
054229065
ABSTRACT:
A laser resonator includes; an optical oscillator including a discharge tube, and a pair of reflecting mirrors arranged at both ends of the discharge tube while inner surfaces of the mirrors confront each other; electrodes confronting each other with the discharge tube held therebetween; a gas pipe connected to the optical oscillator, and a gas circulating device connected to the gas pipe for circulating laser gas, wherein the laser resonator generates laser light when a voltage impressed to the electrodes invites discharge of the discharge tube while laser gas is circulated in the discharge tube by the gas circulating device. The laser resonator further includes a diffraction grating provided at one outer surface of either of the pair of reflecting mirrors to take out a part of the laser light passing through the reflecting mirror in a direction of a predetermined angle, and a photodetector for detecting an intensity of the laser light, the photodetector being disposed in the direction of the predetermined angle of that part of the taken-out laser light.
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Karasaki Hidehiko
Yamane Shigeki
Bovernick Rodney B.
Matsushita Electric - Industrial Co., Ltd.
Wise Robert E.
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