Abstract

A theoretical investigation is presented for nematic liquid crystal photonic bandgap fibers (LCPBGFs), in which the rotation angle of liquid crystal's director $n$ could be arbitrarily controlled by external electric field. Based on the investigation on the polarization effect of photonic bands, we propose two orthogonal polarization-dependent bandgap maps to describe the mode guiding behavior. The symmetry properties analysis of photonic band structure reveals that the bandgap map of LCPBGFs is approximately independent of the rotation angle of director. The guiding properties of LCPBGFs including the position and width of high transmission windows, single-mode single-polarization or ultrahigh birefringence guiding, confinement loss, and coupling loss are investigated. Specifically, the high loss peaks due to the coupling between guided mode and polarization-dependent photonic bands will greatly narrow the transmission windows of the LCPBGFs. The polarization axis of the guided mode is determined by the rotation angle of the director, which could be controlled by external electric field.

© 2008 IEEE

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2007 (2)

2006 (5)

D. C. Zografopoulos, E. E. Kriezis, T. D. Tsiboukis, "Photonic crystal-liquid crystal fibers for single-polarization or high-birefringence guidance," Opt. Express 14, 914-925 (2006).

T. A. Birks, F. Luan, G. J. Pearce, A. Wang, J. C. Knight, D. M. Bird, "Bend loss in all-solid bandgap fibres," Opt. Express 14, 5688 (2006).

T. A. Birks, G. J. Pearce, D. M. Bird, "Approximate band structure calculation for photonic bandgap fibres," Opt. Express 14, 9483-9490 (2006).

G. Alagappan, X. W. Sun, P. Shum, M. B. Yu, D. den Engelsen, "Symmetry properties of two-dimensional anisotropic photonic crystals," J. Opt. Soc. Amer. A 23, 2002-2013 (2006).

T. R. Woliński, K. Szaniawska, S. Ertman, P. Lesiak, A. W. Domanski, R. Dabrowski, E. Nowinowski-Kruszelnicki, J. Wojcik, "Influence of temperature and electrical fields on propagation properties of photonic liquid crystal fibers," Meas. Sci. Technol. 17, 985-991 (2006).

2005 (2)

M. W. Haakestad, T. T. Alkeskjold, M. D. Nielsen, L. Scolari, J. Riishede, H. E. Engan, A. Bjarklev, "Electrically tunable photonic bandgap guidance in a liquid-crystal-filled photonic crystal fiber," IEEE Photon. Technol. Lett. 17, 819-821 (2005).

L. Scolari, T. T. Alkeskjold, J. Riishede, A. Bjarklev, D. Hermann, A. Anawati, M. Nielsen, P. Bassi, "Continuously tunable devices based on electrical control of dual-frequency liquid crystal filled photonic bandgap fibers," Opt. Express 13, 7483-7496 (2005).

2004 (3)

2003 (3)

2002 (1)

2001 (1)

Appl. Phys. Lett. (1)

F. Du, Y. Q. Lu, S. T. Wu, "Electrically tunable liquid-crystal photonic crystal fiber," Appl. Phys. Lett. 85, 2181-2183 (2004).

IEEE Photon. Technol. Lett. (1)

M. W. Haakestad, T. T. Alkeskjold, M. D. Nielsen, L. Scolari, J. Riishede, H. E. Engan, A. Bjarklev, "Electrically tunable photonic bandgap guidance in a liquid-crystal-filled photonic crystal fiber," IEEE Photon. Technol. Lett. 17, 819-821 (2005).

J. Opt. Soc. Amer. A (1)

G. Alagappan, X. W. Sun, P. Shum, M. B. Yu, D. den Engelsen, "Symmetry properties of two-dimensional anisotropic photonic crystals," J. Opt. Soc. Amer. A 23, 2002-2013 (2006).

Meas. Sci. Technol. (1)

T. R. Woliński, K. Szaniawska, S. Ertman, P. Lesiak, A. W. Domanski, R. Dabrowski, E. Nowinowski-Kruszelnicki, J. Wojcik, "Influence of temperature and electrical fields on propagation properties of photonic liquid crystal fibers," Meas. Sci. Technol. 17, 985-991 (2006).

Opt. Express (9)

T. T. Alkeskjold, J. Laegsgaard, A. Bjarklev, D. S. Hermann, J. Broeng, J. Li, S. T. Wu, "All-optical modulation in dye-doped nematic liquid crystal photonic bandgap fibers," Opt. Express 12, 5857-5871 (2004).

B. Eggleton, C. Kerbage, P. Westbrook, R. Windeler, A. Hale, "Microstructured optical fiber devices," Opt. Express 9, 698-713 (2001).

T. T. Larsen, A. Bjarklev, D. S. Hermann, J. Broeng, "Optical devices based on liquid crystal photonic bandgap fibres," Opt. Express 11, 2589-2596 (2003).

C. Kerbage, B. Eggleton, "Numerical analysis and experimental design of tunable birefringence in microstructured optical fiber," Opt. Express 10, 246-255 (2002).

L. Scolari, T. T. Alkeskjold, J. Riishede, A. Bjarklev, D. Hermann, A. Anawati, M. Nielsen, P. Bassi, "Continuously tunable devices based on electrical control of dual-frequency liquid crystal filled photonic bandgap fibers," Opt. Express 13, 7483-7496 (2005).

T. A. Birks, F. Luan, G. J. Pearce, A. Wang, J. C. Knight, D. M. Bird, "Bend loss in all-solid bandgap fibres," Opt. Express 14, 5688 (2006).

T. A. Birks, G. J. Pearce, D. M. Bird, "Approximate band structure calculation for photonic bandgap fibres," Opt. Express 14, 9483-9490 (2006).

D. C. Zografopoulos, E. E. Kriezis, T. D. Tsiboukis, "Photonic crystal-liquid crystal fibers for single-polarization or high-birefringence guidance," Opt. Express 14, 914-925 (2006).

N. M. Litchinitser, S. C. Dunn, B. Usner, B. J. Eggleton, T. P. White, R. C. McPhedran, C. M. de Sterke, "Resonances in microstructured optical waveguides," Opt. Express 11, 1243-51 (2003).

Opt. Lett. (3)

Science (1)

P. St. J. Russell, "Photonic crystal fibers," Science 299, 358-362 (2003).

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