Miniaturizable Phase-Sensitive Amplifier Based on Vector Dual-Pump Structure for Phase Regeneration of PDM Signal

Phase sensitive amplification is indispensable in promoting applications such as all-optical regenerators, quantum communications, all-optical analog-to-digital conversion, and long-distance communications. In this article, we proposed a vector dual-pump nondegenerate phase-sensitive amplification s...

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Main Authors: Shuaiwei Jia, Zhuang Xie, Wen Shao, Xiaotian Han, Yulong Su, Jiacheng Meng, Duorui Gao, Wei Wang, Xiaoping Xie
Format: Article
Language:English
Published: IEEE 2024-01-01
Series:IEEE Photonics Journal
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Online Access:https://ieeexplore.ieee.org/document/10335764/
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author Shuaiwei Jia
Zhuang Xie
Wen Shao
Xiaotian Han
Yulong Su
Jiacheng Meng
Duorui Gao
Wei Wang
Xiaoping Xie
author_facet Shuaiwei Jia
Zhuang Xie
Wen Shao
Xiaotian Han
Yulong Su
Jiacheng Meng
Duorui Gao
Wei Wang
Xiaoping Xie
author_sort Shuaiwei Jia
collection DOAJ
description Phase sensitive amplification is indispensable in promoting applications such as all-optical regenerators, quantum communications, all-optical analog-to-digital conversion, and long-distance communications. In this article, we proposed a vector dual-pump nondegenerate phase-sensitive amplification scheme based on ultra-silicon-rich nitride (Si<sub>7</sub>N<sub>3</sub>) waveguide, and theoretically verified its capability for all-optical regeneration of phase-encoded polarization-division multiplexing (PDM) signal without the need for complex polarization diversity structures. We achieved a gain extinction ratio (GER) of &#x223C;37.5 dB by using a 3-mm-long Si<sub>7</sub>N<sub>3</sub> waveguide with a high nonlinear coefficient (&#x223C;279 &#x002F;W&#x002F;m). Signal quality before and after regeneration is characterized by constellation diagram and error vector magnitude (EVM). The results show that the EVM of the degraded PDM differential phase-shift keying (DPSK) signals with two polarization states of 54&#x0025; and 53.8&#x0025;, can be improved to 13.6&#x0025; and 13.6&#x0025;, respectively, after regeneration, directly illustrating the remarkable phase noise suppression effect. The applicability of the scheme in PDM quadrature phase shift keying (QPSK) signals was further investigated. Similarly, the EVMs of the two polarization states of the deteriorated QPSK signals are optimized from 28.9&#x0025; and 29.3&#x0025; to 13.7&#x0025; and 13.9&#x0025;, respectively. The proposed scheme has promising applications in integrated all-optical processing systems and long-distance transmission of optical communications.
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issn 1943-0655
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publishDate 2024-01-01
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spelling doaj-art-c04ce852d7b040b0aa0ca40be3b937bc2025-08-20T03:15:50ZengIEEEIEEE Photonics Journal1943-06552024-01-0116111210.1109/JPHOT.2023.333592310335764Miniaturizable Phase-Sensitive Amplifier Based on Vector Dual-Pump Structure for Phase Regeneration of PDM SignalShuaiwei Jia0https://orcid.org/0009-0001-3543-4197Zhuang Xie1https://orcid.org/0000-0002-0428-4202Wen Shao2Xiaotian Han3Yulong Su4Jiacheng Meng5Duorui Gao6Wei Wang7Xiaoping Xie8State Key Laboratory of Transient Optics and Photonics, Xi&#x0027;an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi&#x0027;an, ChinaState Key Laboratory of Transient Optics and Photonics, Xi&#x0027;an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi&#x0027;an, ChinaState Key Laboratory of Transient Optics and Photonics, Xi&#x0027;an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi&#x0027;an, ChinaState Key Laboratory of Transient Optics and Photonics, Xi&#x0027;an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi&#x0027;an, ChinaDepartment of Optoelectronic Engineering, Xidian University, Xi&#x0027;an, ChinaState Key Laboratory of Transient Optics and Photonics, Xi&#x0027;an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi&#x0027;an, ChinaState Key Laboratory of Transient Optics and Photonics, Xi&#x0027;an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi&#x0027;an, ChinaState Key Laboratory of Transient Optics and Photonics, Xi&#x0027;an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi&#x0027;an, ChinaState Key Laboratory of Transient Optics and Photonics, Xi&#x0027;an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi&#x0027;an, ChinaPhase sensitive amplification is indispensable in promoting applications such as all-optical regenerators, quantum communications, all-optical analog-to-digital conversion, and long-distance communications. In this article, we proposed a vector dual-pump nondegenerate phase-sensitive amplification scheme based on ultra-silicon-rich nitride (Si<sub>7</sub>N<sub>3</sub>) waveguide, and theoretically verified its capability for all-optical regeneration of phase-encoded polarization-division multiplexing (PDM) signal without the need for complex polarization diversity structures. We achieved a gain extinction ratio (GER) of &#x223C;37.5 dB by using a 3-mm-long Si<sub>7</sub>N<sub>3</sub> waveguide with a high nonlinear coefficient (&#x223C;279 &#x002F;W&#x002F;m). Signal quality before and after regeneration is characterized by constellation diagram and error vector magnitude (EVM). The results show that the EVM of the degraded PDM differential phase-shift keying (DPSK) signals with two polarization states of 54&#x0025; and 53.8&#x0025;, can be improved to 13.6&#x0025; and 13.6&#x0025;, respectively, after regeneration, directly illustrating the remarkable phase noise suppression effect. The applicability of the scheme in PDM quadrature phase shift keying (QPSK) signals was further investigated. Similarly, the EVMs of the two polarization states of the deteriorated QPSK signals are optimized from 28.9&#x0025; and 29.3&#x0025; to 13.7&#x0025; and 13.9&#x0025;, respectively. The proposed scheme has promising applications in integrated all-optical processing systems and long-distance transmission of optical communications.https://ieeexplore.ieee.org/document/10335764/Phase sensitive amplificationpolarization-division multiplexing signalsall optical phase regenerationnonlinear optical waveguide
spellingShingle Shuaiwei Jia
Zhuang Xie
Wen Shao
Xiaotian Han
Yulong Su
Jiacheng Meng
Duorui Gao
Wei Wang
Xiaoping Xie
Miniaturizable Phase-Sensitive Amplifier Based on Vector Dual-Pump Structure for Phase Regeneration of PDM Signal
IEEE Photonics Journal
Phase sensitive amplification
polarization-division multiplexing signals
all optical phase regeneration
nonlinear optical waveguide
title Miniaturizable Phase-Sensitive Amplifier Based on Vector Dual-Pump Structure for Phase Regeneration of PDM Signal
title_full Miniaturizable Phase-Sensitive Amplifier Based on Vector Dual-Pump Structure for Phase Regeneration of PDM Signal
title_fullStr Miniaturizable Phase-Sensitive Amplifier Based on Vector Dual-Pump Structure for Phase Regeneration of PDM Signal
title_full_unstemmed Miniaturizable Phase-Sensitive Amplifier Based on Vector Dual-Pump Structure for Phase Regeneration of PDM Signal
title_short Miniaturizable Phase-Sensitive Amplifier Based on Vector Dual-Pump Structure for Phase Regeneration of PDM Signal
title_sort miniaturizable phase sensitive amplifier based on vector dual pump structure for phase regeneration of pdm signal
topic Phase sensitive amplification
polarization-division multiplexing signals
all optical phase regeneration
nonlinear optical waveguide
url https://ieeexplore.ieee.org/document/10335764/
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