一篇研究光纤光栅的文献，文件中介绍了光纤光栅耦合模的推导原理，并给出了数值求解的结果-A study of fiber grating literature, the paper describes the derivation of coupled-mode fiber grating theory, and gives the results of numerical solution

在许多测试场合，传感器输出的信号往往很微弱，而且伴随有很大的共模电压（包括干扰电压），一般对这种信号需要采用测量放大器。测量放大器是一种高增益、直流耦合放大器，它具有差分输入、单端输出、高输入阻抗和高共模抑制比等特点。请设计一个测量放大器： 指标要求： a.当输入信号峰峰值uip-p=1mV时，输出电压信号峰峰值uop-p=1V。 b.输入阻抗：Ri>1MΩ c. 频带宽度： Δf（-3dB）=1Hz~1kHz d.共模抑制比： CMRR > 70dB -In

This application report introduces the various interface standards used today in modern telecom and datacom systems and describes the methods used to interface between similar and different I/O structures used on Texas Instruments serial gigabit

THIS M-FILE USES THE TRANFER MATRIX METHOD TO EVALUATE THE COUPLED-MODE EQUATIONS. THE REFLECTION SPECTRUM OF THE GRATING AND THE TRANSMISSION SPECTRUM, DELAY AND DISPERSION OF THE FABRY-PEROT FILTER ARE SIMULATED