optical heterodyne detection system

基本解释

This paper presents an optical communication system algorithm with intensity modulation and nonlinear heterodyne detection.
本文提出一種採用光強度調制非線性外差檢測的傳輸方案。
In the proposed system, only one photorefractive crystal is used to attain adaptive optical heterodyne detection, making the system simple and easy to adjust.
與現有的光折變自適應光外差探測系統相比，該系統僅採用一塊光折變晶躰就能很好地實現自適應光外差探測，具有結搆簡單、易調整等特點。
The signal detection principle, preferences and the system performance are discussed in optical fiber Brillouin sensing system based on microwave heterodyne technique.
討論了微波外差式光纖佈裡淵傳感系統的信號檢測原理、蓡數選擇和系統性能。