title: Polarization-independent bistable light valve in blue phase liquid crystal filled photonic crystal fiber.
abstract: This article demonstrates a bistable optical valve in a photonic liquid crystal fiber using the thermal hysteresis effect of the phase transition between the cholesteric phase and the blue phase (BP). The attenuation is due to various scattering losses in different phases. Both cholesteric and BPs can exist stably at room temperature (RT) and can also be switched to each other using temperature-control processes. The transmission spectrum and the intensity of the guided light can be controlled with various extents of scattering loss. For optical communications, this device can be manipulated over a loss difference of 10 dB at RT and insensitive to the polarization of light.
authors.affiliation: Department of Photonics, National Sun Yat Sen University, Kaohsiung, Taiwan.
authors.forename: Chun-Hong
authors.initials: CH
authors.lastname: Lee
authors.forename: Chih-Wei
authors.initials: CW
authors.lastname: Wu
authors.forename: Chun-Wei
authors.initials: CW
authors.lastname: Chen
authors.forename: Hung-Chang
authors.initials: HC
authors.lastname: Jau
authors.forename: Tsung-Hsien
authors.initials: TH
authors.lastname: Lin