Research/Patents/US 5739947
US 5739947Tier 3 — General Defense

NONLINEAR OPTICAL POWER LIMITER USING SELF-TRAPPING OF LIGHT

Assignee

US Government

Filed as: UNITED STATES OF AMERICA, THE, AS REPRESENTED BY THE SECRETARY OF THE ARMY

Filed

Mar 25, 1985

Granted

Apr 14, 1998

Location

LORTON VA US

Abstract

Incident radiation is focussed by a lens into a non-linear optical material whose index of refraction increases with increased radiation intensity. For normal radiation, the radiation freely passes through the nonlinear optical and an optically-switchable material to an other lens. This other lens directs the radiation onto a photodetector. High-intensity radiation, however, is self-trapped in the nonlinear material to form a columnar beam which falls on the optically-switchable material, causes this material to switch, and is reflected thereby.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Mar 11, 1986

Rescinded

Dec 5, 1997

Duration

11 years, 9 months

Inventor

  • 1GARY L. WOOD

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records