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概述了国内外长周期光纤光栅的制作方法、长周期光纤光栅温度应力特性和在通信、传感领域内的广泛应用，并且对各种制备工艺进行了比较
The fabrication methods of long period fiber gratings at home and abroad, the temperature stress characteristics of long period fiber gratings and their wide application in the field of communication and sensing are summarized, and various preparation processes are compared