Tunable narrow-linewidth semiconductor laser

Details Tunable narrow-linewidth semiconductor laser Tunable narrow-linewidth semiconductor laser

1989-06-20

1990-12-18

Sikes, William L.

Coherent light generators

Particular beam control device

Tuning

H01S 310

Patent

active

049791788

ABSTRACT:
A system for tuning a narrow-linewidth semiconductor laser such that the laser produces a laser beam at its output port having a desired frequency. The system includes an optical resonator and an optical system for coupling a portion of the laser beam into the resonator along a feedback optical path. The resonator may comprise a pair of faces, an electro-optic material between the faces, and an electrode for generating an electric field in the electro-optic material in response to a control voltage. The laser beam portion that enters the resonator causes the resonator to produce a feedback beam that is coupled into the input port of the laser, to provide optical feedback that causes the laser to lock to a resonance of the optical resonator. Tuning is accomplished by varying the resonance by applying a voltage to the electrode. The optical feedback also reduces the laser's linewidth. In another embodiment, a fiber-optic cable ring resonator is used to produce the feedback beam.

REFERENCES:
patent: 3959739 (1976-05-01), Hutcheson et al.
patent: 3967211 (1976-06-01), Itzkan et al.
patent: 4429393 (1984-01-01), Giuliano
patent: 4451923 (1984-05-01), Hansch et al.
patent: 4468773 (1984-08-01), Seaton
patent: 4484333 (1984-11-01), Chenausky et al.
patent: 4512021 (1985-04-01), Chenausky et al.
patent: 4550410 (1985-10-01), Chenausky et al.
patent: 4583228 (1986-04-01), Brown et al.
patent: 4586184 (1986-04-01), Hess
patent: 4677630 (1987-06-01), Fujita et al.
patent: 4719635 (1988-01-01), Yeh
patent: 4856017 (1989-08-01), Ungar
Kogelnik, H. and Li, T., "Laser Beams and Resonators," Proc. IEEE, vol. 54, pp. 1312-1329, Oct. 1966.
Hercher, M., "The Spherical Mirror Fabry-Perot Interferometer," Applied Optics, vol. 7, No. 5, pp. 951-966, May 1968.
Bondarenko, A. N. and Kruglov, S. V., "Stabilization of a Ruby Laser Using an He-Ne Laser as a Frequency Reference," JETP Lett., vol. 22, No. 2, pp. 46-47, Jul. 1975.
Tsuchida, H. 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.
Stokes, L. F. et al., "All-Single-Mode Fiber Resonator," Optics Letters, vol. 7, No. 6, pp. 288-290, Feb. 1982.
Dahmani, B. et al., "Frequency Stabilization of Semiconductor Lasers by Resonant Optical Feedback," Optics Letters, vol. 12, No. 11, pp. 876-878, Nov. 1987.

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