Predicting nonlinear dynamics of optical solitons in optical fiber via the SCPINN

Yin Fang, Wen-Bo Bo, Ru-Ru Wang, Yue-Yue Wang and Chao-Qing Dai

Chaos, Solitons & Fractals, 2022, vol. 165, issue P1

Abstract: The strongly-constrained physics-informed neural network (SCPINN) is proposed by adding the information of compound derivative embedded into the soft-constraint of physics-informed neural network (PINN). It is used to predict nonlinear dynamics and the formation process of bright and dark picosecond optical solitons, and femtosecond soliton molecule in the single-mode fiber, and reveal the variation of physical quantities including the energy, amplitude, spectrum and phase of pulses during the soliton transmission. The adaptive weight is introduced to accelerate the convergence of loss function in this new neural network. Compared with the PINN, the accuracy of SCPINN in predicting soliton dynamics is improved by 5–11 times. Therefore, the SCPINN is a forward-looking method to study the modeling and analysis of soliton dynamics in the fiber.

Keywords: Picosecond optical solitons; Soliton dynamics; Physics-informed neural network; Femtosecond soliton molecule (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (7)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:165:y:2022:i:p1:s0960077922010876

DOI: 10.1016/j.chaos.2022.112908

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