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把要评述了光纤光栅的理论背景、光纤的光敏性，对至今发展起来的几种主要光纤光栅紫外写入技术和chirp光栅生成技术进行了全面的评介，最后介绍了光纤光栅在激光和通信方面的一些重要应用。
The theoretical background of FBG and the photosensitivity of optical fiber are reviewed. Several main technologies of FBG UV writing and chirp grating generation have been reviewed comprehensively. Finally, the applications of FBG in laser and communication Some important applications.