Method of stabilizing the laser beam and apparatus utilizing the

Details Method of stabilizing the laser beam and apparatus utilizing the Method of stabilizing the laser beam and apparatus utilizing the

1990-08-01

1992-01-28

Scott, Jr., Leon

Coherent light generators

Particular beam control device

Having particular beam control circuit component

372 98, 372 99, 372100, 372102, 372 32, 372 9, H01S 313

Patent

active

050848844

ABSTRACT:
According to the invention, a probe laser beam having a wavelength which is different from that of the laser beam emitted from a laser apparatus is introduced into the apparatus to adjust the optical device so that any fluctuations in the probe laser beam passing through or reflected from the optical device may be eliminated. Therefore, any fluctuations in output power and/or the oscillation wavelength of the narrowed bandwidth laser beam emitted from the apparatus can be directly detected and the laser apparatus can be so controlled as to ensure a stabilized operation under an optimum condition.

REFERENCES:
patent: 3437955 (1969-04-01), Enloe et al.
patent: 4823354 (1989-04-01), Znotins et al.
patent: 4847477 (1989-07-01), Smith
patent: 4905243 (1990-02-01), Lokai et al.
patent: 4914662 (1990-04-01), Nakatani et al.

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