Visible and infrared intensity limiter

US4277146A · kind A · utility

Assignee

• The United States of America as represented by the Secretary of the Army · US

Inventors

• Robert L. Morgan · Rolling Meadows, US
• Larry T. Cupitt · Cary, US
• William L. Gamble · Huntsville, US

Key dates

• Filing date: Jul 19, 1979
• Grant date: Jul 7, 1981
• Expiry date: Jul 19, 1999

Classification

• Technology area (CPC G): Physics
• CPC primary: G02F1/0327
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

The laser light is polarized and sent through an electro-optic pockels cell here it is phased shifted in a duty cycle in accordance with the amplitude intensity. The light is then sent through an analyzer which will act as an attenuator to regulate the final amplitude output of the light.