【摘要】 本文对目前国外光纤光栅的研究概况进行了评述。介绍了几种光纤光栅无源和有源器件，并对成栅光源、成栅方法性能进行了比较。更多还原

【Abstract】 Recent work that has been done abroad on optical fiber gratings is discussed in this paper. Some important active and passive optical fiber gratings componeats are also introduced. Several different light sources to induce fiber-gratings and different technology to fabricate gratings are both compared.更多还原