Laser stabilization servo system

Details Laser stabilization servo system Laser stabilization servo system

1986-07-09

1987-06-09

Scott, Jr., Leon

Coherent light generators

Particular beam control device

Optical output stabilization

372 37, 372 20, 372 34, H01S 313

Patent

active

046726187

ABSTRACT:
A method and means for stabilizing the difference in frequencies between the frequency components of a two frequency laser beam influenced by Zeeman effect frequency splitting, accurately determines the frequency separation independently of the individual frequencies or intensities of either of the frequency components. Frequency stabilization is accomplished by mechanical and thermal adjustments to the lasing chamber length of the laser by a closed loop servo control referencing the frequency difference between laser beam components and a reference signal having a frequency equal to the desired frequency difference.

REFERENCES:
patent: 3534292 (1970-10-01), Cutler
patent: 3649930 (1972-03-01), LeFloch
patent: 3711786 (1973-01-01), Vautier et al.
patent: 4284964 (1981-08-01), Maier, Jr.
patent: 4293223 (1981-10-01), Seaton
patent: 4398293 (1983-08-01), Hall et al.
patent: 4468773 (1984-08-01), Seaton
Morris et al; "Frequency Stabilization of Internal Mirror He-Ne Lasers in a Transverse Magnetic Field"; Appl. Opt., vol. 19, No. 12, Dec. 1975, p. 2808.

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