Method and apparatus for controlling the output level of a secon

Details Method and apparatus for controlling the output level of a secon Method and apparatus for controlling the output level of a secon

1994-10-12

1996-05-28

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Temperature control of photocell

250214C, 359328, H01J 724, H01J 4014

Patent

active

055213758

ABSTRACT:
A second harmonic generating method and apparatus is disclosed in which temperature of the nonlinear optical device is detected using a temperature sensor and the light output control is performed only when the temperature of the nonlinear optical device falls within a predetermined range through a comparison with a set temperature, so that the best peak can be selected. At no time is a different peak selected when the characteristics or operation conditions of the nonlinear optical device change.

REFERENCES:
patent: 3858056 (1974-12-01), Melamed et al.
patent: 5093832 (1992-03-01), Bethune et al.
patent: 5181214 (1993-01-01), Berger et al.
patent: 5185643 (1993-02-01), Vry et al.
patent: 5341388 (1994-08-01), Masuda et al.

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