Coherent light generators – Particular resonant cavity – Folded cavity
Patent
1990-04-13
1991-10-01
Sikes, William L.
Coherent light generators
Particular resonant cavity
Folded cavity
372 19, 372 21, 372 66, 372100, H01S 3083
Patent
active
050528157
ABSTRACT:
A ring laser is provided with only two reflecting surfaces to define the cavity. A gain medium is located between the reflecting surfaces. At least one optical interface is located within the cavity and is oriented such that the beam will be deflected by refraction to create a ring path. The angle of incidence of the beam with the interface should be less than Brewster's angle and the surface should have an antireflective coating. The interface can be located on the lasant material, on a non-linear optical material or on a passive optical element. Preferably, the device is arranged to achieve unidirectional and single frequency operation. When the ring is used for intracavity second harmonic generation, the resultant output is amplitude stable because of the avoidance of mode beating. The second harmonic radiation is generated unidirectionally increasing useable output.
REFERENCES:
patent: 3200342 (1965-08-01), Kibler
patent: 3414839 (1968-12-01), Bridges et al.
patent: 4507785 (1985-03-01), Richards
patent: 4525843 (1985-06-01), Diels
patent: 4578793 (1986-03-01), Kane et al.
patent: 4653056 (1987-03-01), Baer et al.
patent: 4656635 (1987-04-01), Baer et al.
patent: 4739507 (1988-04-01), Byer et al.
patent: 4747111 (1988-05-01), Trutna, Jr. et al.
patent: 4797896 (1989-01-01), Kane
patent: 4827480 (1989-05-01), Kowalski
patent: 4933947 (1990-06-01), Anthon et al.
Optics Communications, vol. 73, No. 6, Nov. 15, 1989, Single-Frequency Q-Switched Operation of a Laser Diode-Pumped, Nd: YAG Ring Laser, Clarkson and Hanna.
Abstract of a Talk Given Apr. 28, 1989, Diode Pumped Q-Switched Single Frequency ND:YAG Ring Laser, Clarkson et al.
Technology Information Sheet Dated Oct. 30, 1989 from Defense Technology Enterprises Limited.
Large-Amplitude Fluctuations Due to Longitudinal Mode Coupling in Diode-Pumped Intracavity-Doubled Nd:YAG Lasers, T. Baer, Journal Optical Society, vol. 3, No. 9, Sep. 1986.
Johnson John K.
Nightingale John L.
Coherent Inc.
Hansen Galen J.
Sikes William L.
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