Yu JianMing, Tao XiaoMing, Tam HwaYaw
Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Kowloon, Hong Kong, China.
Opt Lett. 2004 Jan 15;29(2):156-8. doi: 10.1364/ol.29.000156.
We report the development of photosensitive polymeric optical fibers for gratings. The fiber is made of a copolymer of methyl methacrylate and butyl methacrylate, and its core is made of a copolymer of methyl methacrylate, ethyl methacrylate, and benzyl methacrylate (90/4/6 molar ratio) doped with trans-4-stilbenemethanol. Ultraviolet absorption and photoinduced refractive-index change of the doped core system are presented, and its photosensitivity is demonstrated by fabrication of Bragg gratings in the core of the fiber by use of a pulse laser at 325 nm.
我们报告了用于光栅的光敏聚合物光纤的研制情况。该光纤由甲基丙烯酸甲酯和甲基丙烯酸丁酯的共聚物制成，其纤芯由甲基丙烯酸甲酯、甲基丙烯酸乙酯和甲基丙烯酸苄酯的共聚物（摩尔比为90/4/6）制成，并掺杂了反式-4-二苯乙烯甲醇。文中给出了掺杂纤芯体系的紫外吸收和光致折射率变化情况，并通过使用325 nm脉冲激光在光纤纤芯中制作布拉格光栅证明了其光敏性。
