Radially Polarized Field Fiber Based on Circularly Symmetric Radial Birefringence

Fangxiang Zhu; Hao Chen; Jinde Yin; Jintao Wang; Peiguang Yan; Huifeng Wei; fei He; Kangkang Chen; Yang Yu

doi:10.3788/CJL202047.0101005

Chinese Journal of Lasers, Volume. 47, Issue 1, 0101005(2020)

Radially Polarized Field Fiber Based on Circularly Symmetric Radial Birefringence

Fangxiang Zhu^1,2, Hao Chen¹, Jinde Yin¹, Jintao Wang¹, Peiguang Yan^1、*, Huifeng Wei², fei He², Kangkang Chen², and Yang Yu³

Author Affiliations

¹Shenzhen Key Laboratory of Laser Engineering, College of Physics and Optoelectronic Engineering, henzhen University, Shenzhen, Guangdong 518060, China

²YSL Photonics, Wuhan, Hubei 430000, China

³College of Liberal Arts and Sciences, National University of Defense Technology, Changsha, Hunan 410073, China

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Figures & Tables(6)

Fig. 1. Structure of RPF fiber

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Fig. 2. Effects of fiber parameters on mode degeneracy. (a) Effect of GeO₂ concentration in core1 on ode degeneracy; (b) effect of fiber core structure on mode degeneracy

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$Anisotropic refractive index properties of RPF fiber. (a) Refractive index profiles of RPF fiber in three irections at 1030 nm; (b) TM01 mode field distribution at 1030 nm and birefringence distribution$

Fig. 3. Anisotropic refractive index properties of RPF fiber. (a) Refractive index profiles of RPF fiber in three irections at 1030 nm; (b) TM₀₁ mode field distribution at 1030 nm and birefringence distribution

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Fig. 4. Mode degeneracy and mode field distribution of RPF fiber. (a) Effective index difference between fiber odes versus wavelength; (b) mode distributions at 1030 nm

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Table 1. Effective mode field area and effective refractive index difference between modes at several typical wavelengths

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Table 1. Effective mode field area and effective refractive index difference between modes at several typical wavelengths

Wavelength /nm	Effective mode field area /μm²			Effective refractive index difference /10^-4
Wavelength /nm	TM₀₁	HE₂₁	TE₀₁	HE₁₁-TM₀₁	TM₀₁-HE₂₁	HE₂₁-TE₀₁
730	298	288	310	1.01	1.15	1.64
1030	369	370	386	2.97	1.20	1.45
1064	379	382	398	3.21	1.20	1.43
1550	702	794	1043	6.23	1.02	1.04
1557	732	840	1172	6.33	1.00	1.01

Table 2. Comparison of our design with several ring-core fibers with high refractive index difference

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Table 2. Comparison of our design with several ring-core fibers with high refractive index difference

Parameter	Method inRef. [10]	Method inRef. [19]	Method inRef. [20]	Method inRef. [21]	Our design
Inner/outer diameter /μm	~7/~10	~8/~9	14/18	~6/~16.5	11.2/20
Refractive index difference	~0.0230	0.1800	0.0300	~0.0350	~0.0017

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Fangxiang Zhu, Hao Chen, Jinde Yin, Jintao Wang, Peiguang Yan, Huifeng Wei, fei He, Kangkang Chen, Yang Yu. Radially Polarized Field Fiber Based on Circularly Symmetric Radial Birefringence[J]. Chinese Journal of Lasers, 2020, 47(1): 0101005

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Paper Information

Category: laser devices and laser physics

Received: Aug. 21, 2019

Accepted: Sep. 26, 2019

Published Online: Jan. 9, 2020

The Author Email: Peiguang Yan (yanpg@szu.edu.cn)

DOI:10.3788/CJL202047.0101005

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology