Multi-Parameter Measurement Method of Single Mode Fiber Based on Bidirectional Rayleigh Scattering

Feng Liu; Yi Shi; Zhen'ang Ge; Hao Li

doi:10.3788/LOP220894

Journals >Laser & Optoelectronics Progress >Volume 60 >Issue 7 >Page 0712004 > Article

Laser & Optoelectronics Progress
Vol. 60, Issue 7, 0712004 (2023)

Multi-Parameter Measurement Method of Single Mode Fiber Based on Bidirectional Rayleigh Scattering

Feng Liu^*, Yi Shi, Zhen'ang Ge, and Hao Li

Author Affiliations

College of Electrical and Electronic Engineering, Wenzhou University, Wenzhou 325035, Zhejiang, China

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DOI: 10.3788/LOP220894 Cite this Article Set citation alerts

Feng Liu, Yi Shi, Zhen'ang Ge, Hao Li. Multi-Parameter Measurement Method of Single Mode Fiber Based on Bidirectional Rayleigh Scattering[J]. Laser & Optoelectronics Progress, 2023, 60(7): 0712004 Copy Citation Text

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Fig. 1. Principle diagram of fiber multi-parameter synchronous measurement method based on bidirectional Rayleigh scattering

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Fig. 2. Experimental setup of multi-parameter synchronous measurement system for optical fiber based on bidirectional Rayleigh scattering

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Fig. 3. Measurement results of semi-logarithmic value

ξ (z)

of backscattering power in LP₀₁ mode. (a) Measurement results of double-end backscattering power; (b) LP₀₁mode

ξ (z)

value obtained from processing in Fig. (a)

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$Measurement distribution results of optical fiber parameters. (a) Mode field diameter;(b) effective mode field area; (c) relative refractive index difference; (d) cutoff wavelength; (e) core diameter; (f) attenuation coefficient$

Fig. 4. Measurement distribution results of optical fiber parameters. (a) Mode field diameter;(b) effective mode field area; (c) relative refractive index difference; (d) cutoff wavelength; (e) core diameter; (f) attenuation coefficient

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Fiber parameter	Fiber A	FUT	Fiber B
Attenuation coefficient /（dB·km^-1）	0.195	0.198	0.193
Mode fiber radius $w$ /μm	10.20	9.21	9.88
Effective mode field area $A_{e f f}$ /μm²	81.6	66.4	76.3
Core diameter $a$ /μm	8.25	8.25	8.28
Relative refractive index difference， $Δ$ /%	0.325	0.329	0.323
Cutoff wavelength $λ_{c}$ /μm	1.255	1.255	1.258

Table 1. Parameters of reference fiber A and fiber B, and fiber under test

Feng Liu, Yi Shi, Zhen'ang Ge, Hao Li. Multi-Parameter Measurement Method of Single Mode Fiber Based on Bidirectional Rayleigh Scattering[J]. Laser & Optoelectronics Progress, 2023, 60(7): 0712004

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