title: Trans-4-stilbenemethanol-doped photosensitive polymer fibers and gratings.
abstract: 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.
authors.affiliation: Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Kowloon, Hong Kong, China.
authors.forename: JianMing
authors.initials: J
authors.lastname: Yu
authors.forename: XiaoMing
authors.initials: X
authors.lastname: Tao
authors.forename: HwaYaw
authors.initials: H
authors.lastname: Tam