Low-Latency Frequency Division Multiplexing Using Entropy Loading for Multi-Point-to-Point Passive Optical Networks DOI
Cheng Li, Wenxuan Mo, Ji Zhou

et al.

Published: July 26, 2024

Language: Английский

A novel multi-ary PolSK modulation for smooth PON evolution DOI

Chen Yao,

Yang Lu,

Liang Cheng

et al.

Optical Fiber Technology, Journal Year: 2024, Volume and Issue: 86, P. 103837 - 103837

Published: May 22, 2024

Language: Английский

Citations

2

Parallel Adaptive Equalizer for Alamouti-Coded Signals Recovery in Simplified Coherent PON DOI
Pablo Torres‐Ferrera, Md. Saifuddin Faruk, Istvan Bence Kovacs

et al.

IEEE Photonics Technology Letters, Journal Year: 2024, Volume and Issue: 36(10), P. 633 - 636

Published: April 5, 2024

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

Language: Английский

Citations

1

Digital pre-equalization for performance improvement in coherent PON DOI Creative Commons
Zepeng Gong, Fan Shi, Qingyu He

et al.

Optics Express, Journal Year: 2024, Volume and Issue: 32(20), P. 35483 - 35483

Published: Sept. 10, 2024

As high-speed optical access networks continue to evolve, reducing the computational complexity at network unit (ONU) side remains a significant challenge in coherent passive (PON). This paper presents pre-equalization scheme that integrates digital pre-distortion (DPD) and pre-emphasis techniques 200 Gb/s PON. The focus is on three modulation formats: 50 Gbaud polarization multiplexing-quadrature phase shift keying (PM-QPSK), Alamouti-coded multiplexing-16 quadrature amplitude (PM-16QAM), 25 PM-16QAM, using intradyne or heterodyne detection schemes. Through comprehensive numerical simulations experimental evaluations, we demonstrate improvements receiver sensitivity power budget When number of filtering taps small, proposed achieves enhancements 3 dB for PM-QPSK, 7 2.1 PM-16QAM downlink. These findings highlight potential enhancing performance next-generation PON with low ONU side.

Language: Английский

Citations

1

Real-time Demonstration of 64 × 200Gbps UDWDM-PON Downstream Transmission Based on Silicon Photonic Integrated Transceiver DOI
Jie Li,

Leilei Hu,

Linfei Gan

et al.

Optics Communications, Journal Year: 2024, Volume and Issue: unknown, P. 131126 - 131126

Published: Sept. 1, 2024

Language: Английский

Citations

1

Investigation of laser phase noise tolerance in simplified coherent PON with subcarrier multiplexing DOI Creative Commons
Runzhe Fan, Jie Li, Zepeng Gong

et al.

Optics Express, Journal Year: 2024, Volume and Issue: 32(22), P. 39384 - 39384

Published: Oct. 8, 2024

In this paper, we experimentally investigate the laser phase noise tolerance for a 100 Gb/s/ λ coherent passive optical network (PON) with simplified units (ONUs) transceivers when distributed feedback (DFB) is used as local oscillator (LO). proposed scheme, digitally subcarrier-multiplexed (DSCM) signals are generated in transmitter at line terminal (OLT) side based on Alamouti encoding two polarizations and received by single-polarization heterodyne receiver ONU side. The experimental results show that power budget can achieve 34.2 dB 33.9 after 25 km standard single-mode fiber (SSMF) link external cavity (ECL) DFB lasers LOs Polarization carrier tracking schemes DSCM systems frequency domain pilot tones were digital signal process (DSP). At same time, offset estimation compensation algorithms conducted using residual carriers. By choosing an appropriate width low-pass filter, optimal performance be achieved. pre-equalization operation OLT also verified to provide better flatter performances.

Language: Английский

Citations

1

Performance comparison of 100Gbps upstream coherent passive optical network DOI
Guan Wang, Nan Feng, Youjian Zhao

et al.

Published: March 18, 2024

For the upstream passive optical network (PON), we design and evaluate an intensity modulation quaternary pulse amplitude (PAM-4) with four coherent receivers in terms of Homodyne balanced detection polarization multiplexing. The obtained simulation results validate 100Gbps PAM-PON scheme successful transmission over C-band standard single mode fiber.

Language: Английский

Citations

0

IQ Skew and Imbalance Estimation for Coherent Point-to-Multi-Point Optical Networks DOI
Ji Zhou,

Jianrui Zeng,

Haide Wang

et al.

Journal of Lightwave Technology, Journal Year: 2024, Volume and Issue: 42(15), P. 5156 - 5166

Published: April 16, 2024

Coherent point-to- multi-point (PtMP) optical network based on digital subcarrier multiplexing (DSCM) has been a promising technology for metro and access networks to achieve cost savings, low latency, high flexibility. In-phase quadrature (IQ) impairments of the coherent transceiver (e.g. IQ skew power imbalance) cause severe performance degradation. In DSCM-based PtMP networks, it is hard realize far-end IQ-impairments estimation hub transmitter because leaf one cannot acquire signal symmetrical subcarrier. this paper, we propose specially designed time-and-frequency interleaving tones (TFITs), which can simultaneously estimate skews imbalances receiver at an individual leaf. The feasibility TFITs-based experimentally verified by setting up 8Gbaud/SCx4SCs network. experimental results depict that absolute errors in estimated imbalance are within $\pm 0.5$ ps 0.2$ dB, respectively. conclusion, great potential networks.

Language: Английский

Citations

0

First Demonstration of 200-G Coherent PON at O-band with Heterogeneously-Integrated SiP Tx and Rx with Lasers DOI
Jinsong Zhang, Zixian Wei, Stephen Misak

et al.

Optical Fiber Communication Conference (OFC) 2022, Journal Year: 2024, Volume and Issue: unknown, P. Th4C.1 - Th4C.1

Published: Jan. 1, 2024

We demonstrate the first 200-G O-band coherent PON using a heterogeneously-integrated SiP PIC transmitter as an OLT and PIC/EIC receivers ONUs. A joint DSCM NOMA scheme is presented for flexibly dense access scenarios.

Language: Английский

Citations

0

Upgraded Architecture of TWDM-PON with Type B Protection for Capacity and Budget Improvement DOI
Takahiro Kodama,

Tomoya Nakagawa,

Mizuki Inagaki

et al.

Optics Communications, Journal Year: 2024, Volume and Issue: 566, P. 130723 - 130723

Published: May 23, 2024

Language: Английский

Citations

0

Quantum random number based secure encryption UFMC-PON transmission system DOI

Jiajia Shen,

Xubiao Zhang,

Xiang Lian

et al.

Optics & Laser Technology, Journal Year: 2024, Volume and Issue: 179, P. 111354 - 111354

Published: July 3, 2024

Language: Английский

Citations

0