Liquid crystal orientation control in photonic liquid crystal fibers

M. S. Chychlowski; E. Nowinowski-Kruszelnicki; T. R. Woliński

doi:10.1117/12.886044

17 May 2011 Liquid crystal orientation control in photonic liquid crystal fibers

M. S. Chychlowski, E. Nowinowski-Kruszelnicki, T. R. Woliński

Proceedings Volume 7753, 21st International Conference on Optical Fiber Sensors; 775341 (2011) https://doi.org/10.1117/12.886044
Event: 21st International Conference on Optical Fibre Sensors (OFS21), 2011, Ottawa, Canada

Abstract

Similarly to liquid crystal displays technology in photonic liquid crystal fibers (PLCFs) a molecular orientation control is a crucial issue that influences proper operation of PLCF-based devices. The paper presents two distinct configurations: planar and radial escaped orientation of the LC molecules inside capillaries as well as methods of their application to photonic liquid crystal fibers. Possibilities of LC orientation control influence both: attenuation and transmitting spectra of the PLCF The orienting method is based on creation of an additional orienting layer on the inner surface of the capillary or air hole of the photonic liquid crystal fiber. Aligning materials used in the experiment are commercially available polyimides SE1211 and SE130 which induce liquid crystal homeotropic and planar anchoring conditions. The orienting layer increase an order parameter of the liquid crystal improving propagation properties and stability of photonic liquid crystal fiber-based devices.

Citation Download Citation

M. S. Chychlowski, E. Nowinowski-Kruszelnicki, and T. R. Woliński "Liquid crystal orientation control in photonic liquid crystal fibers", Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 775341 (17 May 2011); https://doi.org/10.1117/12.886044

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