Coherent light generators – Particular component circuitry – Optical pumping
Patent
1985-01-24
1988-02-09
Corbin, John K.
Coherent light generators
Particular component circuitry
Optical pumping
350173, 350286, 350287, 350485, 372 20, 372100, 372108, G02B 2608, G02B 718, H01S 308, H01S 310
Patent
active
047238410
ABSTRACT:
A variable transmission output coupler and deviationless tuner forms a part of a tunable laser cavity. The device uses frustrated total internal reflection to provide variable output coupling and laser tunability simultaneously. Two Pellin-Broca prisms are pressed against each other by a variable spring pressure mechanism. An adjustable screw regulates the variable force, controlling the thickness of an air film between two prism faces. The Pellin-Broca prisms enable tuning the laser without angular deviation of the output beam. All beams enter and exit at Brewster's Angle, minimizing losses. No coatings are used on the optical elements, reducing the possibility of damage at high operating power of the laser. The coupler may be used in pulsed as well as continuous wave lasers.
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Catalogue entitled Optics for Research-Precision Optical Components, by Optics for Research, Inc., Copyright 1983, printed 6M 5/84, pps. Cover, 5, 25 and 31.
Selleck, R. R., et al, "Switches and Modulators Employing Frustrated Total Internal Reflection", Second International Conference and Winter School on Submillimeter Waves and Their Applications, San Juan, Puerto Rico, 6-11 Dec. 1976, pp. 49-50.
Partington, J. R., An Advanced Treatise on Physical Chemistry, vol. four: Physico-Chemical Optics, London: Longmans, 1953, pp. 104-107.
Steele, E. L., et al, "A Laser Output Coupler Using Frustrated Total Internal Reflection", Applied Optics, vol. 5, No. 1, Jan. 66, pp. 5-8.
Leep, W. R., "Variable Beam Attenuator for 10.6 .mu.m", Review of Scientific Instruments, vol. 47, No. 5 (5/76), pp. 553-555.
Roy Rajarshi
Yu Anthony W.
Corbin John K.
Edmondson D.
Georgia Tech Research Corporation
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