Research on Key Technique of Fiber Optically Coupled Laser Orientation Detection System

摘要

The laser warning technology is one of the most important precondition and basic measurement in laser countermeasure. Laser orientation detection system using optical fiber front end technology can improve the laser-capturing device, reduce electromagnetic interference (EMI) and resist intense laser radiation. This paper mainly introduces the key technique of a novel fiber optically coupled laser orientation detection system, such as how to design optical system, how to choose fiber optic bundle, identify direction of arrival of threat, and so on... Theoretical analysis show that the laser orientation detection system will have wide field-of-view, wide spectral response, adequate sensitivity and dynamic range,, and high reliability.