passive optics meaning in English

惰态光学

Some usual measurement methods are introduced , and their advantages and disadvantages are also analyzed in detail . in view of the defects of the usual methods and the latest developments in bi - photon effect , an all - fiber - measurement system for ultra short pulse was designed in this work , based on the knowledge of nonlinear fiber optics , application of passive optic apparatus , optic - electric transformation , analog circuit , micro chip unit ( mcu ) and so on
针对常用方法的不足,结合近些年来双光子效应的研究成果,我们采用双光子探测器取代常用的非线性晶体,并首次利用光纤延迟取代空间光路延迟,综合了非线性光纤光学、光无源器件的应用、光电转换、模拟电路、单片机等知识,设计出了一套全光纤超短脉冲测量系统。