Parallel Adaptive Equalizer for Alamouti-Coded Signals Recovery in Simplified Coherent PON

Pablo Torres-Ferrera; Md Saifuddin Faruk; Istvan Bence Kovacs; Seb J. Savory

doi:10.1109/LPT.2024.3385572

Parallel Adaptive Equalizer for Alamouti-Coded Signals Recovery in Simplified Coherent PON

Pablo Torres-Ferrera
, Md Saifuddin Faruk
, Istvan Bence Kovacs
, Seb J. Savory

School of Computer Science & Engineering

University of Cambridge

Research output: Contribution to journal › Article › peer-review

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Abstract

A simple single-polarization heterodyne optical network unit (ONU) receiver with Alamouti-coding based polarization diversity at the optical line terminal (OLT) side is a promising solution for passive optical networks (PON) beyond 50 Gbps. The special equalizer required for data recovery of such system has been demonstrated for 200 Gbps PON downstream using offline processing of serial data. In this letter, we extend such equalizer implementation with parallel processing that is required for real-time implementation. The proof-of-concept experiment for 200 Gbps downstream transmission is demonstrated to show the effectiveness of the proposed digital signal proccesing (DSP). The impact of phase noise and limitation of degree of parallelism are further investigated via numerical simulations.

Original language	English
Pages (from-to)	633-636
Number of pages	4
Journal	IEEE Photonics Technology Letters
Volume	36
Issue number	10
Early online date	5 Apr 2024
DOIs	https://doi.org/10.1109/LPT.2024.3385572
Publication status	Published - 15 May 2024

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10.1109/LPT.2024.3385572

2024_PTL_parallel_R2_redlinedAccepted author manuscript, 2.72 MBLicence: CC BY

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title = "Parallel Adaptive Equalizer for Alamouti-Coded Signals Recovery in Simplified Coherent PON",

abstract = "A simple single-polarization heterodyne optical network unit (ONU) receiver with Alamouti-coding based polarization diversity at the optical line terminal (OLT) side is a promising solution for passive optical networks (PON) beyond 50 Gbps. The special equalizer required for data recovery of such system has been demonstrated for 200 Gbps PON downstream using offline processing of serial data. In this letter, we extend such equalizer implementation with parallel processing that is required for real-time implementation. The proof-of-concept experiment for 200 Gbps downstream transmission is demonstrated to show the effectiveness of the proposed digital signal proccesing (DSP). The impact of phase noise and limitation of degree of parallelism are further investigated via numerical simulations.",

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AU - Faruk, Md Saifuddin

AU - Kovacs, Istvan Bence

AU - Savory, Seb J.

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AB - A simple single-polarization heterodyne optical network unit (ONU) receiver with Alamouti-coding based polarization diversity at the optical line terminal (OLT) side is a promising solution for passive optical networks (PON) beyond 50 Gbps. The special equalizer required for data recovery of such system has been demonstrated for 200 Gbps PON downstream using offline processing of serial data. In this letter, we extend such equalizer implementation with parallel processing that is required for real-time implementation. The proof-of-concept experiment for 200 Gbps downstream transmission is demonstrated to show the effectiveness of the proposed digital signal proccesing (DSP). The impact of phase noise and limitation of degree of parallelism are further investigated via numerical simulations.

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JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

IS - 10

ER -

Parallel Adaptive Equalizer for Alamouti-Coded Signals Recovery in Simplified Coherent PON

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