title: Temperature-controlled transformation in fiber types of fluid-filled photonic crystal fibers and applications.
abstract: We investigated experimentally and theoretically an invertible fiber-type transformation from a photonic bandgap fiber into a nonideal waveguide and then into an index-guiding photonic crystal fiber via the thermo-optic effect of the fluid filled in the air holes. Such a transformation could be used to develop an in-fiber optical switch/attenuator with a high-extinction ratio of more than 35 dB over an extremely broad wavelength range from 600 to 1700 nm via a small temperature adjustment.
authors.affiliation: Department of Electrical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong, China. ypwang@china.com
authors.forename: Yiping
authors.initials: Y
authors.lastname: Wang
authors.forename: Xiaoling
authors.initials: X
authors.lastname: Tan
authors.forename: Wei
authors.initials: W
authors.lastname: Jin
authors.forename: Diqing
authors.initials: D
authors.lastname: Ying
authors.forename: Yeuk Lai
authors.initials: YL
authors.lastname: Hoo
authors.forename: Shujing
authors.initials: S
authors.lastname: Liu