Vector Mode Conversion Based on Tilted Long-Period Fiber Grating Written in Ring Fiber

Tao Hong; Mi Yuean; Ren Wenhua; Jian Wei; Ren Guobin

doi:10.3788/CJL202047.0606002

Chinese Journal of Lasers, Volume. 47, Issue 6, 606002(2020)

Vector Mode Conversion Based on Tilted Long-Period Fiber Grating Written in Ring Fiber

Tao Hong^1,2, Mi Yuean^1,2, Ren Wenhua^1,2, Jian Wei^1,2, and Ren Guobin^1,2、*

¹Key Laboratory of All Optical Network and Advanced Telecommunication Network of Ministry of Education,Beijing Jiaotong University, Beijing 100044, China

²Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044, China

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Figures & Tables(7)

$TLPFG based on ring fiber. (a) Refractive index distribution of fiber cross section; (b) schematic of grating longitudinal section$

Fig. 1. TLPFG based on ring fiber. (a) Refractive index distribution of fiber cross section; (b) schematic of grating longitudinal section

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$Effective refractive index and phase matching curves$

Fig. 2. Effective refractive index and phase matching curves

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Fig. 3. Transmission spectra of vector modes. (a) Transmission spectra; (b) theoretical value of resonant wavelength

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$Transmission spectra at different tilt angles modulated by refractive index. (a) p polarization mode; (b) s polarization mode; (c) transmission peak$

Fig. 4. Transmission spectra at different tilt angles modulated by refractive index. (a) p polarization mode; (b) s polarization mode; (c) transmission peak

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Fig. 5. Coupling coefficient of vector modes versus tilt angle

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Fig. 6. Transmission spectra of different modes under different grating periods. (a) TM₀₁; (b) HE_21-p; (c) TE₀₁; (d) HE_21-s

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Fig. 7. Transmission spectra under different amplitude functions. (a) p polarization mode; (b) s polarization mode; (c) transmission peaks and resonance wavelengths

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Tao Hong, Mi Yuean, Ren Wenhua, Jian Wei, Ren Guobin. Vector Mode Conversion Based on Tilted Long-Period Fiber Grating Written in Ring Fiber[J]. Chinese Journal of Lasers, 2020, 47(6): 606002

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Paper Information

Category: Fiber optics and optical communication

Received: Nov. 21, 2019

Accepted: --

Published Online: Jun. 3, 2020

The Author Email: Guobin Ren (gbren@bjtu.edu.cn)

DOI:10.3788/CJL202047.0606002

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology