Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1988-12-07
1990-11-06
LaRoche, Eugene R.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307425, 432199, 432200, G02B 523, H03F 700, F27D 704
Patent
active
049681214
ABSTRACT:
An apparatus for maintaining a crystal at a precisely controlled operating temperature over extended periods of time without significant thermal degradation of the crystal. The apparatus has thermally conducting walls. The walls define an inner hermetically sealed chamber for the crystal. Input and output windows are hermetically sealed to the input and output ends of the chamber. The inner surfaces of these windows are maintained at the operating temperature of the crystal to prevent fogging of the windows. Flexible thermal conducting layers are used between the crystal surfaces and the walls of the chamber to achieve uniform and continuous thermal contact therebetween, without mechanical stress to the crystal. The structure provides fast thermal response, controlled temperature in the crystal interaction region and stability of operation over extended periods of time. In one preferred embodiment, the crystal is held in suspended position within the chamber between a pair of spring-loaded plungers. Other embodiments and options are also disclosed.
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Y. S. Liu et al., "Specific Heat of Cesium Dideuterium Arsenate (CsD.sub.2 AsO.sub.4) from 0.degree. to 120.degree. C., Applied Physics Letters", vol. 27, No. 11, 12/01/75, pp. 585-587.
D. T. Hon, "Electrooptical Compensation for Self-Heating in CD*A During Second-Harmonic Generation", IEEE Journal of Quantum Electronics, vol. QE 12, No. 2, Feb. 1976, pp. 148-151.
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Bruesselbach Hans W.
Sipman Robert H.
Coble P. M.
Denson-Low W. K.
Duraiswamy V. D.
Hughes Aircraft Company
LaRoche Eugene R.
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