Low-birefringence liquid crystal mixtures for photonic liquid crystal fibres application

ABSTRACT Series of low-birefringence liquid crystal mixtures composed of alkyl alkylbicyclohexyl carbonates and modified mixtures with other compounds have been formulated, their refractive indices and electric permittivity measured upon temperature. They exhibit the ordinary refraction index no lower than the refractive index of silica glass in a different range of temperature. This enables to observe in photonic liquid crystal fibres (PLCFs) a change in the light propagation mechanism from photonic band gap guiding to modified total internal reflection at different temperatures. Selected applications of PLCFs are also discussed. Graphical Abstract

[1]  R. Dabrowski,et al.  Tunable Broadband In-Fiber Polarizer Based on Photonic Liquid Crystal Fiber , 2009 .

[2]  R. Dąbrowski,et al.  Temperature tuning of polarization mode dispersion in single-core and two-core photonic liquid crystal fibers , 2007 .

[3]  Slawomir Ertman,et al.  Phase shifter based on photonic liquid crystal fiber , 2010 .

[5]  R. Dąbrowski,et al.  Polarization Mode Dispersion in an Elliptical Liquid Crystal-Core Fiber , 2004 .

[6]  Weimin Sun,et al.  Temperature-controllable beam splitter and optical filter based on filling liquid crystal into both ends of photonic crystal fibres , 2016 .

[7]  W. Bock,et al.  Tuning Cladding-Mode Propagation Mechanisms in Liquid Crystal Long-Period Fiber Gratings , 2012, Journal of Lightwave Technology.

[8]  R. Dabrowski,et al.  Dielectric properties of ten three-ring LC fluorosubstituted isothiocyanates with different mesogenic cores , 2009 .

[9]  R. Eidenschink,et al.  Substituted Bicyclohexyls—A New Class of Nematic Liquid Crystals , 1978 .

[10]  Piotr Lesiak,et al.  Optofluidic Photonic Crystal Fiber-Based Sensors , 2017, Journal of Lightwave Technology.

[11]  Edward Nowinowski-Kruszelnicki,et al.  Propagation properties of photonic crystal fibers filled with nematic liquid crystals , 2005 .

[12]  R. Dabrowski,et al.  Synthesis and physical properties of liquid crystals having a chlorine atom in the lateral position of a benzene ring , 2006 .

[13]  Ludwig Pohl,et al.  Physical properties of nematic phenylcyclohexanes, a new class of low melting liquid crystals with positive dielectric anisotropy , 1977 .

[14]  R. Dabrowski,et al.  Large Area Multimode Photonic Band-Gap Propagation in Photonic Liquid-Crystal Fiber , 2012, IEEE Photonics Technology Letters.

[15]  Zhi Wang,et al.  Double telecom band thermo-optic switch based on dual-line filled photonic liquid crystal fibres , 2017 .

[17]  Edward Nowinowski-Kruszelnicki,et al.  Influence of temperature and electrical fields on propagation properties of photonic liquid-crystal fibres , 2006 .

[18]  Edward Nowinowski-Kruszelnicki,et al.  Polarization Properties of Liquid Crystal-Core Optical Fiber Waveguides , 2000 .

[19]  Roman Dabrowski,et al.  New strategy for the synthesis of LC compounds possessing 4,4'-dicyclohexyl or 4,4'-cyclohexenylcyclohexyl moiety , 2002, Liquid Crystals.

[20]  Roman Dabrowski,et al.  Liquid crystalline materials with low ordinary index , 2005 .

[21]  Slawomir Ertman,et al.  Photonic Liquid Crystal Fibers for Sensing Applications , 2008, IEEE Transactions on Instrumentation and Measurement.

[22]  L. R. Jaroszewicz,et al.  Optical properties of a liquid crystal with small ordinary and extraordinary refractive indices and small optical anisotropy , 2014 .

[23]  R. Dąbrowski,et al.  Recent advances in liquid-crystal fiber optics and photonics , 2017, OPTO.

[24]  M. Roszko,et al.  Polarimetric optical fibers with elliptical liquid-crystal core , 2000, LEOS 2000. 2000 IEEE Annual Meeting Conference Proceedings. 13th Annual Meeting. IEEE Lasers and Electro-Optics Society 2000 Annual Meeting (Cat. No.00CH37080).

[25]  T. Szczucinski,et al.  A convenient synthesis of 4-(trans-4'-n-alkylcyclohexyl) benzoic acids , 1982 .

[26]  G. W. Gray,et al.  Physical Properties of Liquid Crystals , 2003 .