...百度空间 次报道在PCF上写入光纤布喇格光栅(PhotonicFiberBraggGrating, PFBG)和长周期光纤光栅（Photonic Long Period Grating, PLPG）以来，光子晶体光纤光栅（Photonic Crystal Fiber Grating, PCFG）的..
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...根据光栅周期的长短，可将光纤光栅分为布拉格光纤光栅（FiberBraggGrating， FBG）和长周期光纤光栅（Long Period Grating，LPG）两大类。布拉格光纤光栅周期一般 为零点几个微米，而长周期光纤光栅的栅格周期大于lOOgrrr。
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...耦合的方向不同，可以分为两大类：布拉格光纤光栅（Fiber Bragg Grating， FBG）和长周期光纤光栅（Long-Period Fiber Grating，LPG）。
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应用耦合模理论和传输矩阵法计算模拟了长周期光纤光栅的透射谱，并对其进行了切趾优化。
Based on the coupled-mode theory, the transfer-matrix method is used to calculate the transmission spectra of phase-shifted long-period fiber gratings (LPFG).
介绍长周期光纤光栅基本工作原理、器件特性和制备方法，同时对这种器件在光通信和传感系统中的应用状况作了简要概述。
The present paper introduce mainly basic principle, device characteristic and making method of long-period fiber grating and outlines the application status in optical communication and sensor system.
分析了长周期光纤光栅(LPG)的啁啾特性和切趾特性，给出了基于LPG的增益平坦滤波器可调的理论依据。
The chirp and apodization characteristics of long-period grating (LPG) are analyzed, and the theoretic foundation of adjustable gain flattening filter based on LPG is provided.
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