United States of America as Represented by the Secretary of the Air Force

Cutting Edge Optronics, Inc.

Chandler J Kennedy

James D Barry

A satellite defends itself by having a plurality of corner cube retroreflectors with shutters, each having a laser light sensor. It is assumed that the attacker first must obtain positional and range information with a pulsed laser. When one of the sensors detects these low power laser pulses, it causes the shutter of the corner cube array to open and return the pulses with sufficient strength to saturate or damage the attack sensors.

Defense to laser light irradiation

In cavity dumped state lasers the relaxation oscillations caused by cavity dumping are stabilized and damped out by placing a non-linear second-harmonic generation crystal inside the optical cavity of the laser and phase-matching it to produce a doubled frequency component of approximately 0.1% that of the circulating power. The degree of damping depends on the conversion percentage, which may be varied by temperature controlling the frequency doubling crystal. A conventional antireflection coating is placed on the crystal to minimize losses.

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Huntington Beach, CA, United States of America

Chandler J Kennedy