Cavity referenced acousto-optical laser frequency stabilization

Details Cavity referenced acousto-optical laser frequency stabilization Cavity referenced acousto-optical laser frequency stabilization

1991-09-23

1992-12-29

Scott, Jr., Leon

Coherent light generators

Particular beam control device

Optical output stabilization

372 13, 372 18, 372 31, H01S 313

Patent

active

051757370

ABSTRACT:
The CAVITY REFERENCED ACOUSTO-OPTICAL LASER FREQUENCY STABILIZATION shown here locks the frequency of a laser 10 to that of a reference cavity 26. It frequency modulates the input 24 to the cavity 26 with an acouto-optical modulator 18 which operates on a sample 16 extracted from the output beam 14 of the laser 10 rather than on the output beam 14 itself. The cavity 26 can be tuned to any convenient frequency, and the operator is not limited to any specific reference absorption material. Since dithering is done on the sample 16 rather than on the output 14, no contamination of spectral purity takes place.

REFERENCES:
patent: 4352562 (1982-10-01), Minden
patent: 4707061 (1987-11-01), McMahon
patent: 4807999 (1989-02-01), SooHoo
patent: 4815851 (1989-03-01), SooHoo
patent: 4830495 (1989-05-01), SooHoo et al.
patent: 4921354 (1990-05-01), SooHoo

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