Laser device with high oscillation efficiency

Details Laser device with high oscillation efficiency Laser device with high oscillation efficiency

1989-02-10

1990-05-08

Sikes, William L.

Coherent light generators

Particular pumping means

Pumping with optical or radiant energy

372 72, H01S 3091

Patent

active

049244744

ABSTRACT:
A laser device comprises a laser medium, a semiconductor light-emitting element for exciting the laser medium, a reflecting surface surrounding the outer periphery of the laser medium along its optical axis, and an opening provided in a part of the reflecting surface for causing light from the semiconductor light-emitting element to be incident upon the laser medium. The laser device is improved further by providing a polarizing plate and a light guide between the light-emitting element and the laser medium and by deviating the optical axis of excitation light from the central axis of the laser medium.

REFERENCES:
patent: 3624545 (1971-11-01), Ross
patent: 3663893 (1972-05-01), Ostermayer, Jr.
patent: 3683296 (1972-08-01), Scalise
patent: 3684980 (1972-08-01), Kay
patent: 3686543 (1972-08-01), Nyul
patent: 3711789 (1973-01-01), Dierschke
patent: 4306278 (1981-12-01), Fulton et al.
Allen et al., "Continuous Operation of a YAlG:Nd Laser by Injection Luminescent Pumping"; Appl. Phys. Letters; vol. 14, No. 6, Mar. 15, 69; 188-190.
Copy of European Search Report dated 4/17/89.
Applied Physics Letter, vol. 19, No. 1 (Jul. 1, 1971), p. 11, A. R. Reinberg, et al.
Applied Optics, vol. 27, No. 1 (Jan. 1, 1988), p. 80, F. Hanson et al.
Applied Optics, vol. 13, No. 11 (Nov. 1974), p. 2457, L. C. Conant et al.

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