光滤波器的英文
optical filter
例句与用法
更多例句： 上一页 - In resent years , the electrically controlled birefringence of liquid crystal is widely used in displays , light valves and optical filters , more and more researchers have paid special attentions to it and shown great interests in it
近年来，液晶的双折射效应广泛应用于显示、光阀和光滤波器等技术领域，引起人们的广泛关注和极大的研究兴趣。 - Secondly , we simulate the transmission process in computer , calculate the optical - signal - to - noise - ratio ( osnr ) of output signal with the same input signal filtered by the ofbg , matched filter and f - p filter , analyze the improvement of the osnr after filtered by them . we find it also has advantage over f - p filter . taking the two reasons into account , we believe that the weak ofbg is superior to the widely used f - p filter
另外用计算机模拟计算了光信噪比的改善情况，研究发现：一个相同的噪声信号经弱ofbg后的光信噪比较经过f - p滤波器后的光信噪比高，由此认为， ofbg用作光滤波器对接收端前置光放大器的噪声进行滤波，比常用f - p光滤波器具有更大的优越性。 - In the first place , start with theoretic model of distributed fbg strain - sensing network , sensing principle of fiber bragg grating is analyzed and sensing model created . on the basis of analyzing advantages and disadvantages of several familiar multiplexing and demodulation techniques , a mixture multiplexing method that combines optical frequency domain reflectometry ( ofdr ) and wavelength division multiplexing ( wdm ) is proposed to address fbg sensing array . at the same time , tunable narrow - band light source , which is composed of wide - band light source and tunable optical filter , is adopted to demodulate multiplex signals
首先，论文从分布式光纤光栅应变传感网络的理论模型入手，分析了光纤布拉格光栅的传感机理，建立光纤光栅应变传感模型；在分析比较了常见几种复用技术和信号解调技术的优缺点基础上，提出应用光频域反射复用技术和波分复用技术相结合的混合复用方法来解决光纤光栅应变传感网络的寻址问题，采用由宽带光源和可调谐光滤波器组成的可调谐窄带光源来解调复用信号，通过理论分析和实验研究证实了系统方案的可行性。 - After that we introduced the material characteristic and the whole craft process and discuss on the experience during the craft process . at the end of this paper , some testing schemes are designed delicately and researched carefully . any possible problems are anticipated and the follow settlements are also given
在论文最后部分着重对集成光学可调谐声光滤波器( iaotf )在不同制作阶段测试方案的设计和讨论,并完成了部分测试工作,对于未完成部分也针对可能出现的问题提出了相应的方案和解决途径 - The goal of the filter is to improve the sensitivity of an optical receiver by optimally filtering a communication signal . in this paper we calculated the temporal response of the matched filter , the commonly used f - p filter , as well as the matched weak ofbg filter . we find that the reflected pulse of weak ofbg closely resembles the triangular shape characteristic of a perfectly matched filter
论文计算了通信系统中矩形光脉冲信号经强、弱ofbg 、匹配光滤波器、 f - p滤波器的输出光脉冲波形，经分析比较后发现：弱ofbg和理想匹配光滤波器的输出信号波形极其相似，不存在码间干扰，而f - p滤波器的输出波形存在比较严重的码间干扰。
