Abstract

A simple silicon-core microfiber has been proposed to simultaneously achieve an ultrahigh birefringence order of ${10}^{-1}$, a large nonlinear coefficient, and two zero-dispersion wavelengths. The full-vector finite-element method with a circular perfectly matched layer boundary is used to simulate the properties of our proposed microfiber. It is suitable to achieve two zero-dispersion wavelengths of $\sim 1280$ and $\sim 1817\mathrm{nm}$ for the $x$-polarized ${\mathrm{HE}}_{11}$ mode and of $\sim 1293$ and $\sim 1695\mathrm{nm}$ for the $y$-polarized ${\mathrm{HE}}_{11}$ mode, when the major and minor diameters are, respectively, $\sim 1.05$ and $\sim 0.315\mathrm{\mu m}$, and the radius of the silicon core is about 135.35 nm. Meanwhile, the nonlinear coefficients of two nondegenerated ${\mathrm{HE}}_{11}$ modes at the wavelength of 1550 nm are $\sim 17.42$ and $\sim 33.77{\mathrm{W}}^{-1}{\mathrm{m}}^{-1}$, respectively, and the maximum birefringence is about $\sim 0.24$ at 1550 nm wavelength. Therefore, our proposed silicon-core microfiber exhibits excellent polarization and nonlinearity performance, which enables it to be used for polarization-maintaining nonlinear signal processing, such as supercontinuum spectrum generation, parametric amplification, optical nonlinear sensor, and so on.

© 2017 Optical Society of America

Ultrahigh birefringent nonlinear silicon-core microfiber with two zero-dispersion wavelengths: publisher’s note

Xiaoying He, Chong Li, Zonghai Hu, and Xia Guo
J. Opt. Soc. Am. B 35(1) 189-189 (2018)

Design and optimization of high-birefringence low-loss crystal fiber with two zero-dispersion wavelengths for nonlinear effects

Ya-Ni Zhang
Appl. Opt. 50(25) E125-E130 (2011)

Flexible and broadband graphene polarizer based on surface silicon-core microfiber

Xiaoying He and Jiacong Liu
Opt. Mater. Express 7(4) 1398-1405 (2017)

Birefringence-induced splitting of the zero-dispersion wavelength in nonlinear photonic crystal fibers

K. P. Hansen, A. Petersson, J. R. Folkenberg, M. Albertsen, and A. Bjarklev
Opt. Lett. 29(1) 14-16 (2004)

Elliptical-spiral elliptical-hole photonic crystal fiber with high birefringence, large nonlinearity, and two zero dispersion

Shanshan Zhang, Weiguang Shi, Cheng Zhang, Jia Shi, Jixuan Wu, Hongqiang Li, Yange Liu, and Bo Zhang
Appl. Opt. 59(2) 521-529 (2020)