Method for automatically adjusting the optical axis of a laser r

Details Method for automatically adjusting the optical axis of a laser r Method for automatically adjusting the optical axis of a laser r

1992-04-07

1994-05-10

Davie, James W.

Coherent light generators

Particular operating compensation means

372 31, 372107, H01S 313

Patent

active

053115279

ABSTRACT:
A method for automatically adjusting an optical axis of a laser resonator. Specifically, the angle of a mirror in a laser resonator is changed in a very small stepwise increments, and the laser output before the very little change is compared to the laser output after the incremental change. If the laser output after the very small incremental change is larger than the laser output before the very small incremental change, the angle is automatically changed by a very small amount in the same direction as the previous increment. If the laser output after the very small incremental change is smaller than the previous laser output measurement, the angle is automatically changed by a very small amount in the opposite direction. Thus the optical axis of the laser resonator is adjusted automatically.

REFERENCES:
patent: 3897139 (1975-07-01), Caruolo et al.
patent: 5121405 (1992-06-01), Negus
Akitt et al., "Electronic Mode and Power Control of a High-Power CO.sub.2 Laser", IEEE Journal of Quantum Electronics, vol. 26, No. 8, Aug. 1990, pp. 1413-1417.
Anderson, "Alignment of Resonant Optical Cavities", Applied Optics, vol. 23, No. 17, Sep. 1, 1984, pp. 2944-2949.

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