【摘要】 介绍了长周期光纤光栅制作技术上的进展。阐述了长周期光纤光栅制作方法的分类,可分为在一般光纤上制作的长周期光纤光栅和在特殊光纤上制作的长周期光纤光栅;前者又可分为基于非形变的制备方法和基于形变的制备方法,基于非形变的制备方法以幅值掩模法和逐点写入法为代表,基于形变方法制备的长周期光纤光栅,一般通过刻槽使光纤发生微小形变;给出了各种制作方法的特点。更多还原

【Abstract】 The progress in fabrication method of long period fiber grating(LPFG)is introduced.The classification of fabrication about LPFG is expounded;it can be classified as the LPFG written in the normal optical fiber and the LPFG written in the special optical fiber.The former can be classified as the LPFG made with non-deformation and the LPFG made with deformation.The methods based on non-deformation are represented by fabricating LPFG with amplitude mask and fabricating LPFG written step by step.The optical fiber used to make LPFG with deformation is generally little deformed using slots.The characteristics of every method are given.更多还原