Abstract
A novel birefringent photonic crystal fiber (BPCF) which is symmetrically filled with magnetic fluid (MF) into the transverse
air-holes was presented firstly. The magnetically induced tuning properties of the BPCF filled MF were simulated and
analyzed by the full-vector finite element method with a perfectly matched layer. The mode field distributions, polarization
properties and the confinement loss of the BPCF filled MF were figured out and simulated. The results show that the
properties of the BPCF filled MF can be tuned by adjusting the magnetic field and the duty ratio d/Λ. The phase birefringence
B decreases with the increase of magnetic field H under the condition of the same duty ratio d/Λ. The B increases with the
increase of duty ratio d/Λ under the condition of the same magnetic field H. When the wavelength λ=1550nm, the duty ratio
d/Λ=0.9, the phase birefringence B decreases from 0.005575 to 0.004472 with the H changing from 20Oe to 300Oe. The
birefringence effect is ten times higher than the general fiber and there is a fairly good linearity..
Keywords
Birefringent Characteristic, Photonic crystal fibers, Magnetic fluid.
Citation
YUYAN ZHANG, XICHANG HAN, HUANXIN GUAN, XINLI CHI, Tunable birefringent characteristic of the photonic crystal fibers filled selectively by magnetic fluid, Optoelectronics and Advanced Materials - Rapid Communications, 11, 1-2, January-February 2017, pp.27-31 (2017).
Submitted at: Nov. 24, 2015
Accepted at: Feb. 10, 2017