Electrooptic-Q-switching system for a laser

Details Electrooptic-Q-switching system for a laser Electrooptic-Q-switching system for a laser

1974-12-03

1976-06-22

Sikes, William L.

Oscillators

Molecular or particle resonant type

350160R, H01S 311

Patent

active

039654397

ABSTRACT:
A Q-switching system within a laser cavity in which the system comprises configurations of electrooptic material that have electrodes thereacross which are connected to a direct current voltage source through a switching circuit. The voltage is applied to the electrodes by the switching circuit at a rate commensurate but not appreciably faster than the time the lasing medium takes to replenish its stored energy. When the voltage is applied on the electrodes the electrooptic material becomes birefringent and the plane of polarization of the light is rotated 90.degree., thus causing loss in the system and the laser to store more energy before pulsing. When the switching circuit quickly removes the voltage from the electrodes, the loss is thus quickly removed and the laser produces a larger peak power pulse even though the average power remains the same.

REFERENCES:
hook et al., Laser Cavity Dumping Using Time Variable Reflection, Appl. s. Lett., vol. 9, No. 3 (Aug. 1, 1966) pp. 125-127.

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