High extinction ratio elliptical core Panda-type polarization-maintaining fiber coil

Haoyu Li; Xuyou Li; Jie Wang; Martin Rochette; Hanrui Yang

doi:10.1364/OL.437629

Optics Letters
Vol. 46,
Issue 17,
pp. 4276-4279
(2021)
•https://doi.org/10.1364/OL.437629

High extinction ratio elliptical core Panda-type polarization-maintaining fiber coil

Haoyu Li, Xuyou Li, Jie Wang, Martin Rochette, and Hanrui Yang

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Haoyu Li, Xuyou Li, Jie Wang, Martin Rochette, and Hanrui Yang, "High extinction ratio elliptical core Panda-type polarization-maintaining fiber coil," Opt. Lett. 46, 4276-4279 (2021)

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Table of Contents Category
- Fiber Optics and Optical Communications
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About this Article
History
- Original Manuscript: July 13, 2021
- Revised Manuscript: August 3, 2021
- Manuscript Accepted: August 5, 2021
- Published: August 26, 2021

Abstract

The polarization-maintaining performance of the traditional Panda-type polarization-maintaining fiber (PMF) coil is significantly affected by winding stress and temperature. Here, we present an elliptical core Panda-type PMF coil based on a fiber that employs both geometric and stress birefringence. The extinction ratio of the elliptical core PMF coil was found to be 20.13 dB at a temperature of 20°C, corresponding to an increase of 3.71 dB compared to the traditional Panda-type PMF coil. In addition, results from distributed polarization cross talk and gyroscope output tests also revealed a low sensitivity of the fiber to stress caused by the winding process and temperature. In summary, the proposed fiber coil has better polarization-maintaining ability compared to conventional coil and is promising for applications in high-precision optical fiber sensors.

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Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

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Fibers	$D_{c o r e}$ [µm]	$D_{S A P}$ [µm]	$n_{c o r e}$	$n_{c l a d d i n g}$	$α_{c o r e / c l a d d i n g}$ [1/K]	$α_{S A P}$ [1/K]	E [GPa]	$υ$	$ρ [k g / m^{3}]$
C-core PMF	9.2	23.42/23.67	1.4702	1.4567	$7 \times 10^{- 6} /$ $5.4 \times 10^{- 7}$	$1 \times 10^{- 5}$	78	0.186	2220

E-core PMF	8.39/6.29	23.63/23.38

Coils	Length [m]	$D_{i n n e r}$ [cm]	$D_{o u t e r}$ [cm]	Layers
C-core PMF	1018.37	11	11.6	31
E-core PMF	1014.58	11	11.6	31

	B ( $10^{- 4}$ )		Layer		Turn
T (°C)	C-Core	E-Core	C-Core	E-Core	C-Core	E-Core
−40	5.74	6.78	−32.8	−52.8	−40	−57.1
20	5.42	6.34	−36.9	−62.4	−46.5	−69.2
60	5.21	6.12	−33.8	−60.4	−44.3	−68.3

Fibers	$D_{c o r e}$ [µm]	$D_{S A P}$ [µm]	$n_{c o r e}$	$n_{c l a d d i n g}$	$α_{c o r e / c l a d d i n g}$ [1/K]	$α_{S A P}$ [1/K]	E [GPa]	$υ$	$ρ [k g / m^{3}]$
C-core PMF	9.2	23.42/23.67	1.4702	1.4567	$7 \times 10^{- 6} /$ $5.4 \times 10^{- 7}$	$1 \times 10^{- 5}$	78	0.186	2220

E-core PMF	8.39/6.29	23.63/23.38

Coils	Length [m]	$D_{i n n e r}$ [cm]	$D_{o u t e r}$ [cm]	Layers
C-core PMF	1018.37	11	11.6	31
E-core PMF	1014.58	11	11.6	31

Abstract

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Optics Letters