Dodecagonal photonic quasi-crystal fiber with high birefringence.
A photonic quasi-crystal fiber (PQF) with high birefringence is proposed. A dodecagonal Stampfli quasi-periodic lattice of air holes constitutes the cladding of the PQF. The PQF maintains the properties of high birefringence and single-mode operation regime in a wide wavelength range from 1.2 to 2.0 μm by optimizing the size of the air holes around the core of the PQF. A birefringence with 3.86×10-2can be obtained at 1.31 and 1.55 μm optical telecommunication windows. The birefringence is of the order of 10-2, which is two orders of magnitude larger than that of the conventional polarization-maintaining fibers and hardly affected by the incident wavelength. The proposed PQF also maintains a high nonlinear coefficient and low confinement loss. Our structure and simulation results are expected to provide a valuable reference and basic data to relative fabrication and experiments.
Weicheng
W
Cai
Exian
E
Liu
Bo
B
Feng
Wei
W
Xiao
Hongfei
H
Liu
Ziming
Z
Wang
Shuo
S
Wang
Taiyuan
T
Liang
Jianqiang
J
Liu
Jianjun
J
Liu