Optimization and analysis of Spectral/Spatial optical code division multiple access passive optical network

Ullah, Rahat; Ullah, Sibghat; Imtiaz, Waqas Ahmed; Alatawi, Abdullah A.; Alzaid, Zaid; Alwageed, Hathal S.

doi:10.1016/j.aeue.2023.155084

Cited by 6 publications

(1 citation statement)

References 24 publications

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“…The traffic of broadband terahertz (THz) technologies is growing at an unprecedented rate due to the emergence of bandwidth-hungry applications. The optical industry is working hard to create novel strategies for increasing the overall capacity of deployed optical networks both at wired and wireless mediums [1], [2]. Optical communications have permeated numerous domains of science and technology and evolved into a crucial and fast evolving topic, attracting interdisciplinary study [3]- [5].…”

Section: Introductionmentioning

confidence: 99%

1.12Tbps-16QAM Uncompensated Long-Haul Transmission Employing a New Self-Oscillating Optical Frequency Comb Generator Both at Transmitter and Receiver

Ullah,

Chen

et al. 2024

IEEE Photonics J.

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A new optoelectronic oscillator (OEO) is implemented for a novel self-sustained flat-topped selfoscillating optical frequency comb generator (SO-OFCG), which can be deployed in terahertz optical transmission. The OFCG is designed from a cascaded configuration of an electro-absorption modulator and a polarization controller. In this work, the radio frequency source of a traditional-OFC scheme is replaced by the OEO. The frequency spacing of the generated spectrum is defined by the OEO~20GHz that contains 15-healthy frequency tones. The carriers are modulated using the 16-quadrature amplitude modulation technique and transmitted across an SSMF implemented in a loop to complete a fiber span of 80km-240km. Overall, 1.12Tbps transmission can be achieved with the help of the given setup. At the receiver side, a homodyne coherent receiver is designed using the proposed OFCG to receive the signal. The conventional local oscillator lasers are replaced by the SO-OFCG generated from the received central optical carrier. Through offline DSP, the received optical signals are remunerated from various signal distortions and nonlinear impairments by utilizing digital backpropagation, constant modulus algorithm, and blind phase search algorithm at the receiving end. The system is analyzed regarding the bit error rate, symbol error rate, Q-factor, and error vector magnitude.

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Section: Introductionmentioning

confidence: 99%

1.12Tbps-16QAM Uncompensated Long-Haul Transmission Employing a New Self-Oscillating Optical Frequency Comb Generator Both at Transmitter and Receiver

Ullah,

Chen

et al. 2024

IEEE Photonics J.

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Design and performance analysis of OAM‐based multidimensional multiplexing RoF‐PON integrated access system

Ding,

Ren,

Jiang

et al. 2024

Micro & Optical Tech Letters

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The unique advantage of orbital angular momentum (OAM) provides a novel approach to breaking through the limitations of high‐capacity and long‐distance transmission in the conventional radio‐overfiber passive optical network (RoF‐PON) hybrid access network. Introducing the OAM division multiplexing (OAM‐DM) based on Laguerre–Gaussian (LG) beams into the RoF‐PON, an innovative multidimensional system architecture is proposed, which integrates with polarization‐division multiplexing (PDM), wavelength‐division multiplexing (WDM), and orthogonal frequency‐division multiplexing (OFDM) technologies. Successful long‐distance transmission of both the downstream 40 GHz radio OFDM signal and the upstream 40 Gbps on‐off keying (OOK) signal over 80 km are achieved. Additionally, at the optical network unit side, low‐cost upstream carrier re‐modulation technology and flexible access for both wired and wireless signals are realized. The proposed RoF‐OAM‐DM‐PDM‐WDM‐OFDM‐PON architecture offers a dependable solution for high‐capacity and low‐cost future communication systems, holding great importance in achieving flexible access networks.

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A 100 Gbps integrated fiber-FSO data transmission system based on WDM techniques employing optical frequency comb lines

Atta,

Pathak,

Das

et al. 2024

Opt Quant Electron

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Optimization and analysis of Spectral/Spatial optical code division multiple access passive optical network

Cited by 6 publications

References 24 publications

1.12Tbps-16QAM Uncompensated Long-Haul Transmission Employing a New Self-Oscillating Optical Frequency Comb Generator Both at Transmitter and Receiver

1.12Tbps-16QAM Uncompensated Long-Haul Transmission Employing a New Self-Oscillating Optical Frequency Comb Generator Both at Transmitter and Receiver

Design and performance analysis of OAM‐based multidimensional multiplexing RoF‐PON integrated access system

A 100 Gbps integrated fiber-FSO data transmission system based on WDM techniques employing optical frequency comb lines

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