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Nonlinear properties of phase-sensitive fiber-optic parametric amplifiers for signal processing

Abstract : The capability and performance of the widely deployed fiber-optic and photonic systems strongly depend on the noise and nonlinearities of the optical amplifiers. In this context, phase-sensitive fiber-optic parametric amplifiers (PS-FOPAs), relying on four-wave mixing in optical fibers, outperforms conventional phase-insensitive amplifier thanks to the unique phase-sensitivity that can be exploited for noiseless amplification and mitigation of the nonlinear impairment. In conjunction with the vast gain spectrum and other functionality such as wavelength conversion, they have been regarded as a promising candidate for the next generation optical amplifiers towards all-optical communication and processing.The PS-FOPA is conventionally described by the fundamental coupled wave equations derived from the nonlinear Schrödinger equation that contains only three or four interacting waves. However, for a more general case, the emergence of high-order waves will inevitably affect the phase-sensitivity. The objective of this thesis aims at the thorough investigation of the nonlinear properties in terms of the gain properties and the phase sensitivities with respect to different configurations of a dual-pump signal-idler degenerate PS-FOPA. The more accurate numerical analysis is obtained by using the 7-wave model that incorporates the first order high-order waves stemming from the high-order four-wave mixing processing. This model permits to assess a more precise physical interpretation of the multi-wave interactions based on phase matching conditions, revealing the underlying relations between the dispersion and the phase-sensitivity. Moreover, the simultaneous phase and amplitude regenerative capability of a basic PS-FOPA is evaluated for the overall optimization. It allows fully exploiting the potential ability of a basic PS-FOPA acting as a fundamental building block of the future all-optical functionalities. The analysis approach based on this model permits application-oriented optimization and is of particular guiding significance for design and optimization of PS-FOPA in various scenarios.
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Submitted on : Tuesday, June 19, 2018 - 3:51:06 PM
Last modification on : Saturday, June 25, 2022 - 10:31:58 PM
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  • HAL Id : tel-01818837, version 1

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Weilin Xie. Nonlinear properties of phase-sensitive fiber-optic parametric amplifiers for signal processing. Optics [physics.optics]. Université Paris Saclay (COmUE); Shanghai Jiao Tong University, 2018. English. ⟨NNT : 2018SACLS108⟩. ⟨tel-01818837⟩

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