On-Line Writing and Performance High-Temperature Resistant Fiber Bragg Grating Array

Jianguan Tang; Shuqi Huang; Huiyong Guo; Dian Fan; Minghong Yang

doi:10.3788/LOP220434

Laser & Optoelectronics Progress, Volume. 60, Issue 7, 0706002(2023)

On-Line Writing and Performance High-Temperature Resistant Fiber Bragg Grating Array

Jianguan Tang^1,2、*, Shuqi Huang², Huiyong Guo^1、**, Dian Fan¹, and Minghong Yang¹

¹National Engineering Research Center of Fiber Optic Sensing Technologies and Networks, Wuhan University of Technology, Wuhan 430070, Hubei, China

²School of Information Engineering, Wuhan University of Technology, Wuhan 430070, Hubei, China

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Figures & Tables(11)

Fig. 1. Schematic of the on-line writing PI-FBGA system

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Fig. 2. Central wavelength and reflectivity distribution of 200 consecutive gratings in an array

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Fig. 3. Reflection spectra of 200 consecutive gratings in an array

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Fig. 4. Transmission loss spectrum of PI-FBGA

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Fig. 5. Weibull distribution of polyacrylate and polyimide fiber

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Fig. 6. Thermal degradation of PI-FBGs at different temperatures

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Fig. 7. Variation of normalized reflectivity and central wavelength change with time under long-term aging at 250 ℃

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Fig. 8. Variation of normalized reflectivity and central wavelength change with temperature in the three thermal cycles at 350 ℃

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Fig. 9. Microscope images of PI-FBGs. (a) Initial FBG; (b) aging at 200 ℃ for 45 days; (c) aging at 250 ℃ for 36 days; (d) aging at 300 ℃ for 16 days; (e) aging at 350 ℃ for 4 days; (f) aging at 400 ℃ for 2 days

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Table 1. Median fracture stress σ_f(0.5) and Weibull slope m at different elongation speeds of polyacrylate and polyimide fiber
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Table 1. Median fracture stress σ_f(0.5) and Weibull slope m at different elongation speeds of polyacrylate and polyimide fiber
Fiber σ_f（0.5） m
3 mm·min^-1 30 mm·min^-1 300 mm·min^-1 3 mm·min^-1 30 mm·min^-1 300 mm·min^-1
Polyacrylate fiber 4.55 5.04 5.56 52.35 66.75 82.53
Polyimide fiber 4.35 4.87 5.00 8.28 9.56 5.66

Table 2. Constant term fitted values at different aging temperatures

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Table 2. Constant term fitted values at different aging temperatures

Temperature /℃	A₁	t₁	A₂	t₂	y₀	R²
200	0.28699	0.21016	0.24160	2.50086	0.48033	0.99859
250	0.47025	0.01674	0.22967	1.73958	0.24935	0.98713
300	0.56953	0.00324	0.30606	0.71279	0.09689	0.99073
350	0.23459	0.17419	0.71297	0.00059	0.04262	0.97971

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Jianguan Tang, Shuqi Huang, Huiyong Guo, Dian Fan, Minghong Yang. On-Line Writing and Performance High-Temperature Resistant Fiber Bragg Grating Array[J]. Laser & Optoelectronics Progress, 2023, 60(7): 0706002

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Paper Information

Category: Fiber Optics and Optical Communications

Received: Jan. 4, 2022

Accepted: Feb. 14, 2022

Published Online: Mar. 31, 2023

The Author Email: Jianguan Tang (ghylucky@whut.edu.cn), Huiyong Guo (minghong.yang@whut.edu.cn)

DOI:10.3788/LOP220434

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Median fracture stress σf(0.5) and Weibull slope m at different elongation speeds of polyacrylate and polyimide fiber

Table 1. Median fracture stress σf(0.5) and Weibull slope m at different elongation speeds of polyacrylate and polyimide fiber

Table 2. Constant term fitted values at different aging temperatures

Table 2. Constant term fitted values at different aging temperatures

Table 1. Median fracture stress σ_f(0.5) and Weibull slope m at different elongation speeds of polyacrylate and polyimide fiber

Table 1. Median fracture stress σ_f(0.5) and Weibull slope m at different elongation speeds of polyacrylate and polyimide fiber