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Temperature influence on propagation characteristics of liquid crystal photonic crystal fiber of terahertz wave

LV LEI, REN GUANG-JUN1,* , LIU BEI1, YAO JIAN-QUAN2

Affiliation

  1. School of Electronics Information Engineering; Tianjin Key Lab. Of Film Electronic & Communication Devices; Engineering Research Center of Communication Devices and Technology, Ministry of Education;
  2. College of Precision Instrument and Opto-electronics Engineering, Institute of Laser and Opto-electronics; Key Laboratory of Optoelectric Information Science and Technology, Ministry of Education, Tia

Abstract

Using the temperature sensitivity of refractive index of Liquid Crystal (LC), a new type of LC photonic crystal fiber (PCF) terahertz waveguide by temperature modulation is designed which is based on that the core of PCF is filled with nematic LC 5CB. The change of characteristics of modes of PCF with temperature under the conditions of different core radius is simulated. It is shown that there is no endless single mode. The waveguide dispersion of terahertz waveguide under the different temperature is simulated. It is shown that, the dispersion constant decreases with temperature increasing and the ultra-flattened dispersion is implemented..

Keywords

Liquid Crystal, Temperature, Terahertz wave, photonic crystal fiber.

Submitted at: June 27, 2011
Accepted at: July 25, 2011

Citation

LV LEI, REN GUANG-JUN, LIU BEI, YAO JIAN-QUAN, Temperature influence on propagation characteristics of liquid crystal photonic crystal fiber of terahertz wave, Journal of Optoelectronics and Advanced Materials Vol. 13, Iss. 7, pp. 755-759 (2011)