Optical limiter

US8478087B2 · kind B2 · utility

Assignee

• Kilolambda Technologies Ltd · IL

Inventors

• Allan Farber · Pardes Hana-Karkur, IL
• Ariela Donval · Ramat Gan, IL
• Doron Nevo · Raanana, IL
• Moshe Oron · Rehovot, IL
• Ram Oron · Rehovot, IL

Key dates

• Filing date: Apr 9, 2003
• Grant date: Jul 2, 2013
• Expiry date: Sep 9, 2030

Classification

• Technology area (CPC G): Physics
• CPC primary: G02F2203/48
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

An optical power limiter comprises an input optical transmission element, an output optical transmission element, and a power-limiting element disposed between the input and output elements for transmitting optical signals from the input element to the output element. The power-limiting element comprises an optical-limiting solid mixture containing particles of at least one material that produces reversible thermal changes in response to light above a predetermined optical power level, thereby changing the optical transmission properties of the power-limiting element.