optical heterodyne detection system

基本解释

This paper presents an optical communication system algorithm with intensity modulation and nonlinear heterodyne detection.
本文提出一种采用光强度调制非线性外差检测的传输方案。
In the proposed system, only one photorefractive crystal is used to attain adaptive optical heterodyne detection, making the system simple and easy to adjust.
与现有的光折变自适应光外差探测系统相比，该系统仅采用一块光折变晶体就能很好地实现自适应光外差探测，具有结构简单、易调整等特点。
The signal detection principle, preferences and the system performance are discussed in optical fiber Brillouin sensing system based on microwave heterodyne technique.
讨论了微波外差式光纤布里渊传感系统的信号检测原理、参数选择和系统性能。