Enhanced Optical Phase Conjugation Technique for Fiber Nonlinearity Mitigation by Two-Stage Optimization

Xiaogang Yi; yi Liu

doi:10.3788/LOP202259.1906001

Journals >Laser & Optoelectronics Progress >Volume 59 >Issue 19 >Page 1906001 > Article

Laser & Optoelectronics Progress
Vol. 59, Issue 19, 1906001 (2022)

Enhanced Optical Phase Conjugation Technique for Fiber Nonlinearity Mitigation by Two-Stage Optimization

Xiaogang Yi^1、* and yi Liu^1、2

Author Affiliations

¹College of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China

²Key Laboratory of Advanced Transducers and Intelligent Control System, Ministry of Education of China, Taiyuan 030024, Shanxi, China

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DOI: 10.3788/LOP202259.1906001 Cite this Article Set citation alerts

Xiaogang Yi, yi Liu. Enhanced Optical Phase Conjugation Technique for Fiber Nonlinearity Mitigation by Two-Stage Optimization[J]. Laser & Optoelectronics Progress, 2022, 59(19): 1906001 Copy Citation Text

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Model of two-span dispersion management link. (a) Structure of two-span dispersion management link; (b) NADD; (c) mirror-symmetric NADD; (d) adjustment of conjugate signal power; (e) adjustment of cumulative dispersion

Fig. 1. Model of two-span dispersion management link. (a) Structure of two-span dispersion management link; (b) NADD; (c) mirror-symmetric NADD; (d) adjustment of conjugate signal power; (e) adjustment of cumulative dispersion

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Fig. 2. Long-distance dispersion management transmission model based on OPC technology

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Fig. 3. Variation of system SNR with conjugate signal power and cumulative dispersion. (a) PO; (b) DO

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Fig. 4. Relationship between system SNR and input power per channel. (a) SLA-IDF link; (b) SSMF-DCF link

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Fig. 5. Maximum SNR of PM-QPSK signal transmitted on SLA-IDF link

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Fiber type	Attenuation coefficient /（dB·km^-1）	Dispersion coefficient /（ps·nm^-1·km^-1）	Nonlinear coefficient /（W·km^-1）	Dispersion-attenuation coefficient ratio
SLA	0.19	20	0.85	105.3
IDF	0.23	-44	3.08	191.3
SSMF	0.20	17	1.30	85.0
DCF	0.50	-100	5.40	200.0

Table 1. Parameters of different fibers

Link	$X_{A t t}^{o p}$ /dB	$X_{C D}^{o p}$ / $X_{C D}^{0}$
SLA‑IDF	3.4	0.7
SSMF‑DCF	2.0	0.7

Table 2. Optimal light intensity and dispersion values of two types of optical fiber links

Xiaogang Yi, yi Liu. Enhanced Optical Phase Conjugation Technique for Fiber Nonlinearity Mitigation by Two-Stage Optimization[J]. Laser & Optoelectronics Progress, 2022, 59(19): 1906001

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