长周期光栅—新兴的光纤光栅传感器

Long Period Grating-A New Kind of Fiber Grating Sensor

近两、三年来，一类新兴的光纤光栅传感器—长周期光栅型传感器（LongPeriodGratinsSensor—LPGs）从众多的光栅传感器中脱颖而出。文章重点介绍了LPGs的传感原理、应用及目前发展状况。

This paper focuses on the principal,applicaitons and development of long period grating sensors (LPGs )in recent years.