Abstract

A ring-pattern liquid-filled photonic crystal fiber (R-LPCF) scheme, in which the first-ring holes (the six holes adjacent to the core) are filled with high-index inclusions, has been experimentally demonstrated to extend over a wide-guided spectral range. In such new fiber, the bandgap-like core mode is investigated, among which the telecommunication bandgap exhibits confinement losses five orders of magnitude smaller than those of the corresponding fully liquid-filled photonic bandgap fibers. Besides, the R-LPCF serving the thermal tunability when filled with index-matching liquid enables guided bandwidth switching from the 1.5-μm-band to the 1.3-μm-band communication window. Moreover, the structural parameters for two commercial photonic crystal fiber are quantified to confirm the feasibility of the proposed method.

© 2022 Optica Publishing Group

Compact tunable multibandpass filters based on liquid-filled photonic crystal fibers

Yingjie Liu, Yiping Wang, Bing Sun, Changrui Liao, Jun Song, Kaiming Yang, Guanjun Wang, Qiao Wang, Guolu Yin, and Jiangtao Zhou
Opt. Lett. 39(7) 2148-2151 (2014)

Temperature sensing using the bandgap-like effect in a selectively liquid-filled photonic crystal fiber

Yang Peng, Jing Hou, Yang Zhang, Zhihe Huang, Rui Xiao, and Qisheng Lu
Opt. Lett. 38(3) 263-265 (2013)

Broadband bandgap guidance and mode filtering in radially hybrid photonic crystal fiber

Yacoub Ould-Agha, Aurelie Bétourné, Olivier Vanvincq, Géraud Bouwmans, and Yves Quiquempois
Opt. Express 20(6) 6746-6760 (2012)

Continuously tunable devices based on electrical control of dual-frequency liquid crystal filled photonic bandgap fibers

Lara Scolari, Thomas Tanggaard Alkeskjold, Jesper Riishede, Anders Bjarklev, David Sparre Hermann, Anawati, Martin Dybendal Nielsen, and Paolo Bassi
Opt. Express 13(19) 7483-7496 (2005)

Electrically controlled broadband liquid crystal photonic bandgap fiber polarimeter

Thomas Tanggaard Alkeskjold and Anders Bjarklev
Opt. Lett. 32(12) 1707-1709 (2007)