Digital compensation of residual pump dithering in optical phase conjugation of high-order QAM

Thanh Tu Nguyen, Sonia Boscolo, Abdallah Ali, Mingming Tan, Stylianos Sygletos, Shigehiro Takasaka, Ryuichi Sugizaki, Andrew D. Ellis

Research output: Chapter in Book/Published conference outputChapter (peer-reviewed)peer-review

Abstract

We develop a new two-stage digital scheme to suppress the phase distortion due to
residual pump dithering in the dual-pump fibre-based optical phase conjugation of high-order (64/256) QAM signals. We show more than 5-dB SNR improvement relative to conventional phase-noise compensation at high pump-phase mismatch levels.
Original languageEnglish
Title of host publication2021 Optical Fiber Communications Conference and Exhibition (OFC)
PublisherIEEE
Number of pages3
ISBN (Electronic)978-1-943580-86-6
ISBN (Print)978-1-6654-2938-2
Publication statusPublished - 26 Jul 2021
Event2021 Optical Fiber Communications Conference and Exhibition (OFC) - San Francisco, CA, USA
Duration: 6 Jun 202110 Jun 2021

Conference

Conference2021 Optical Fiber Communications Conference and Exhibition (OFC)
Period6/06/2110/06/21

Bibliographical note

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Funding: This work was supported by the UK EPSRC - Grants EP/S003436/1, EP/S016171/1 and EP/R035342/1

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