Laser wavelength stabilization

Details Laser wavelength stabilization Laser wavelength stabilization

1988-09-26

1990-04-03

Scott, Jr., Leon

Coherent light generators

Particular beam control device

Optical output stabilization

372 29, 372 34, 372 92, H01S 313

Patent

active

049146629

ABSTRACT:
A laser wavelength is stabilized by deriving a portion of laser beam emitted from a wavelength variable laser oscillator, spectroscopically processing the laser beam portion by means of a wavelength monitor mechanism, measuring a spatial intensity distribution of the spectroscopically processed beam portion, spectroscopically processing light having a specific wavelength and measuring a spatial intensity distribution thereof, analyzing the measured spatial intensity distribution of the spectroscopically processed beam portion on the basis of the measured spatial intensity distribution of the spectroscopically processed light having the specific wavelength, and controlling wavelength of the laser oscillator according to a result of the analysis.

REFERENCES:
patent: 4410992 (1983-10-01), Javan
patent: 4558952 (1985-12-01), Kulesh et al.
patent: 4715028 (1987-12-01), McMahon et al.

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