Coherent light generators – Particular resonant cavity – Mirror support or alignment structure
Patent
1989-03-07
1990-08-28
Sikes, William L.
Coherent light generators
Particular resonant cavity
Mirror support or alignment structure
372 34, 372 9, 372 33, 372108, H01S 308, H01S 304
Patent
active
049531760
ABSTRACT:
Misalignment of a laser beam due to bending of a plasma tube for an internal resonator ion laser, or another structural element supporting beam guiding optics, is controlled by varying the distribution of heat flow out of the plasma tube or structural element to compensate for any misalignment in response to position of the laser beam. A detector is mounted along the optical path of the laser beam, and generates a position signal indicating drift of the laser beam from a preferred position. A cooling system, thermally connected to the structural material of the plasma tube or the structural element and connected to the detector, conducts heat out of the structural material in a controlled distribution in response to the position signal, so that misalignment of the optics due to thermal bending is minimized.
REFERENCES:
patent: 3662279 (1972-05-01), Sandstrom et al.
patent: 4064466 (1977-12-01), Seiki et al.
patent: 4190511 (1980-02-01), Shintaka
patent: 4217559 (1980-08-01), Van den Brink et al.
patent: 4730323 (1988-03-01), Seaton
patent: 4823348 (1989-04-01), Hercher
Model 161C OEM Air-Cooled Argon Ion Laser, Spectra-Physics Product Brochure, Spectra-Physics, Mountain View, Calif.
Epps Georgia Y.
Sikes William L.
Spectra-Physics
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