The propagation characters of selective-filled photonic crystal fibres

Abstract

The spectral characteristics and the number of bandgap of photonic liquid crystal fibre are analysed. By changing the filling ratio of air holes, the number of photonic bandgap increases and the output spectra also move to shorter wavelength more significantly, nearly 20 nm with increasing temperature. The light power in the central core disappears and reappears at high temperature when all or half of air holes are filled with liquid crystal. Such structures are quite useful for optical fibre sensor, filter and optical switch.

Keywords:

• photonic crystal fibres
• liquid crystal
• photonic bandgap
• fibre sensor

Acknowledgement

This work was supported by China Scholarship Council, NSFC 61077047, 61107059, China Postdoctoral Science Foundation Grant 2012M510921 and Natural Science Foundation of Heilongjiang Province No. A200914.