Polarization-maintaining fiber composed of an elliptical ring core and two circular air holes

Xiaoqiang Zhang; Yong Jiang; Yong Xu; Ruishan Chen; Anting Wang; Hai Ming; Weisheng Zhao

doi:10.1364/AO.58.008865

Applied Optics
Vol. 58,
Issue 32,
pp. 8865-8870
(2019)
•https://doi.org/10.1364/AO.58.008865

Polarization-maintaining fiber composed of an elliptical ring core and two circular air holes

Xiaoqiang Zhang, Yong Jiang, Yong Xu, Ruishan Chen, Anting Wang, Hai Ming, and Weisheng Zhao

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Xiaoqiang Zhang, Yong Jiang, Yong Xu, Ruishan Chen, Anting Wang, Hai Ming, and Weisheng Zhao, "Polarization-maintaining fiber composed of an elliptical ring core and two circular air holes," Appl. Opt. 58, 8865-8870 (2019)

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Table of Contents Category
- Fiber Optics, Fiber Sensors, and Optical Communications
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About this Article
History
- Original Manuscript: July 2, 2019
- Revised Manuscript: October 12, 2019
- Manuscript Accepted: October 19, 2019
- Published: November 8, 2019

Abstract

In this paper, a new polarization-maintaining fiber (PMF) composed of an elliptical ring core and two circular air holes is exploited. The PMF could support 10 guided modes with refractive index differences $\Delta {n_{{\rm eff}}}$ of all the adjacent modes larger than ${{10}^{ - 4}}$. Moreover, the optimum parameters of the PMF covering the entire $C + L$ band are obtained. Last, the chromatic dispersion $D$ of the designed elliptical ring core fiber, the confinement loss $\alpha $, and the power fraction $\chi $ of the two-air core are calculated. The calculation results show that $D$, $\alpha $, and $\chi $ are compatible with traditional step-index fiber, and the designed elliptical ring core fiber is suitable for mode-division multiplexing and optical fiber sensors.

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$R$	$n_{c l a d d i n g}$	$q_{x}$	$r$	$η$	$γ$	$d$	$n_{r i n g}$
62.5 µm	1.444	5.06 µm	0.71 µm	1.4	0.65	1.2 µm	1.48

${L P}_{01}^{x}$	${L P}_{11 a}^{x}$	${L P}_{11 b}^{x}$	${L P}_{21 a}^{x}$	${L P}_{21 b}^{x}$
0.021%	0.0072%	0.069%	0.016%	0.088%
${L P}_{01}^{y}$	${L P}_{11 a}^{y}$	${L P}_{11 b}^{y}$	${L P}_{21 a}^{y}$	${L P}_{21 b}^{y}$
0.024%	0.0062%	0.083%	0.014%	0.105%

${L P}_{01}^{x}$	${L P}_{11 a}^{x}$	${L P}_{11 b}^{x}$	${L P}_{21 a}^{x}$	${L P}_{21 b}^{x}$
$2.83 \times 10^{- 8}$	$7.62 \times 10^{- 8}$	$3.45 \times 10^{- 7}$	$9.63 \times 10^{- 8}$	$2.09 \times 10^{- 7}$
${L P}_{01}^{y}$	${L P}_{11 a}^{y}$	${L P}_{11 b}^{y}$	${L P}_{21 a}^{y}$	${L P}_{21 b}^{y}$
$3.21 \times 10^{- 7}$	$2.06 \times 10^{- 8}$	$2.79 \times 10^{- 7}$	$3.63 \times 10^{- 7}$	$3.35 \times 10^{- 7}$

$R$	$n_{c l a d d i n g}$	$q_{x}$	$r$	$η$	$γ$	$d$	$n_{r i n g}$
62.5 µm	1.444	5.06 µm	0.71 µm	1.4	0.65	1.2 µm	1.48

${L P}_{01}^{x}$	${L P}_{11 a}^{x}$	${L P}_{11 b}^{x}$	${L P}_{21 a}^{x}$	${L P}_{21 b}^{x}$
0.021%	0.0072%	0.069%	0.016%	0.088%
${L P}_{01}^{y}$	${L P}_{11 a}^{y}$	${L P}_{11 b}^{y}$	${L P}_{21 a}^{y}$	${L P}_{21 b}^{y}$
0.024%	0.0062%	0.083%	0.014%	0.105%

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Applied Optics