Recent advances in coherent optical communications for short-reach: Phase retrieval methods

AS Karar, ARE Falou, JMH Barakat, ZN Gürkan… - Photonics, 2023 - mdpi.com
Short-reach transmission systems traditionally utilize intensity modulation (IM) at the
transmitter and direct detection (DD) at the receiver due to their cost-effectiveness, small …

Capacity and flexibility improvement of traffic aggregation for fixed 5G: Key enabling technologies, challenges and trends

J Zhang, T Chang, Z Zhong, X **, S Hu… - China …, 2022 - ieeexplore.ieee.org
As the emergence of various high-bandwidth services and the requirements to support
5G/Wi-Fi 6 wireless networks, the next generation fixed networks, ie F5G, are expected to be …

Gerchberg-Saxton based FIR filter for electronic dispersion compensation in IM/DD transmission Part I: Theory and simulation

AS Karar - Journal of Lightwave Technology, 2022 - ieeexplore.ieee.org
Intensity-modulation and direct-detection (IM/DD) transmission over short-reach optical fiber
links, require electronic dispersion compensation (EDC) at the transmitter and/or electronic …

Gerchberg-Saxton based FIR filter for electronic dispersion compensation in IM/DD transmission Part II: Experimental demonstration and analysis

X Wu, AS Karar, K Zhong, ZN Gürkan… - Journal of Lightwave …, 2023 - opg.optica.org
In this article, the first experimental demonstration of a non-iterative electronic dispersion
compensation (EDC) solution implemented at the transmitter using a finite impulse response …

Multi-constraint Gerchberg-Saxton iteration algorithms for linearizing IM/DD transmission systems

S Hu, J Zhang, J Tang, T **, W **, Q Liu, Z Zhong… - Optics …, 2022 - opg.optica.org
Chromatic dispersion-enhanced signal-signal beating interference (SSBI) considerably
affects the performance of intensity-modulation and direct-detection (IM/DD) fiber …

Weighted decision enabled phase retrieval receiver with adaptive intensity transformation

P Zhou, M **ang, W Cheng, Y Ma, R Wu… - Journal of Lightwave …, 2023 - ieeexplore.ieee.org
Phase-retrieval (PR) receivers can reconstruct complex-valued signals from two de-
correlated intensity measurements by the use of iterative PR algorithm, without the …

A point-to-multipoint flexible transceiver for inherently hub-and-spoke IMDD optical access networks

L Chen, W **, J He, RP Giddings… - Journal of Lightwave …, 2023 - ieeexplore.ieee.org
Point-to-multipoint (P2MP) transceivers offer a promising solution to transform present point-
to-point optical access networks into scalable and flexible P2MP networks capable of …

Electronic dispersion compensation and functional link neural network equalization for IM/DD links

Z Al Barakeh, AS Karar, R Ghandour, WHF Aly… - Optics …, 2023 - Elsevier
Short-reach fiber optical links employing intensity modulation (IM) at the transmitter (Tx) and
direct detection (DD) at the receiver (Rx), suffer from linear and nonlinear sources of …

112-Gb/s PAM-4 IM/DD optical transmission over 100-km single mode fiber with linear equalizer

S Hu, J Zhang, J Tang, Q Liu, W **… - 2022 Optical Fiber …, 2022 - ieeexplore.ieee.org
112-Gb/s PAM-4 IM/DD Optical Transmission over 100-km Single Mode Fiber with Linear
Equalizer Page 1 112-Gb/s PAM-4 IM/DD Optical Transmission over 100-km Single Mode Fiber …

[HTML][HTML] Concurrent Direct Inter-ONU and Upstream Communications in IMDD PONs Incorporating P2MP Flexible Optical Transceivers and Advanced Passive …

W **, L Chen, J He, RP Giddings, Y Huang, M Hao… - Photonics, 2024 - mdpi.com
Driven by a large number of emerging diversified services, in the 5G and beyond era,
concurrent direct inter-ONU and upstream communications inside a PON-based mobile …