Multiple laser frequency stabilization

Details Multiple laser frequency stabilization Multiple laser frequency stabilization

1989-06-05

1990-05-29

Sikes, William L.

Coherent light generators

Particular beam control device

Optical output stabilization

372 9, 372 18, 372 29, 372 97, H01S 313

Patent

active

049301330

ABSTRACT:
A system for producing two or more laser beams having stable frequency differences between them. The system includes two or more lasers that produce the respective laser beams, an optical resonator, and coupling optics for coupling portions of each laser beam into the resonator. The resonator produces feedback beams that are returned to the respective lasers to provide optical feedback. The feedback causes each laser to lock to a resonant mode of the resonator, to thereby stabilize the frequency difference between the lasers. The linewidth of each laser is also reduced.

REFERENCES:
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patent: 4468773 (1984-08-01), Seaton
patent: 4583228 (1986-04-01), Brown et al.
patent: 4677630 (1987-06-01), Fujita et al.
patent: 4685111 (1987-08-01), Baer
patent: 4719635 (1988-01-01), Yeh
Dahmani et al., Frequency Stabilization of Semiconductor Lasers by Resonant Optical Feedback, Optics Letters, vol. 12, No. 11, pp. 876-878, Nov. 1987.
Bondarenko et al., Stabilization of a Ruby Laser Using an He-Ne Laser as a Frequency Reference, JETP Letters, vol. 22, No. 2, pp. 46-47, Jul. 20, 1975.
Tsuchida et al., Frequency Stability Measurement of Feedback Stabilized AlGaAs DH Laser, Japanese Journal of Applied Physics, vol. 19, No. 12, pp. L721-L724, Dec. 1980.

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