We report the development of photosensitive polymeric optical fibers for gratings. The fiber cladding 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.
© 2004 Optical Society of America
(050.2770) Diffraction and gratings : Gratings
(060.2290) Fiber optics and optical communications : Fiber materials
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.2400) Fiber optics and optical communications : Fiber properties
JianMing Yu, XiaoMing Tao, and HwaYaw Tam, "Trans-4-stilbenemethanol-doped photosensitive polymer fibers and gratings," Opt. Lett. 29, 156-158 (2004)