Spectrally efficient PDM-Twin-SSB direct-detection THz system without active polarization control

Y Cai, M Sun, B Hua, J Zhang, M Lei… - IEEE Photonics …, 2023 - ieeexplore.ieee.org
This Letter proposed a spectrally efficient polarization division multiplexed (PDM) twin single-
sideband (twin-SSB) transmission scheme for direct-detection THz communication systems …

Low-complexity blind carrier phase recovery for C-mQAM coherent systems

P Zhang, H Ren, M Gao, J Lu, Z Le… - IEEE Photonics …, 2018 - ieeexplore.ieee.org
A novel carrier phase recovery algorithm is proposed for coherent optical systems with
circular multilevel quadrature amplitude modulation (C-mQAM). After amplitude …

Zero guard band multi-TWIN-SSB system in single fiber bidirectional PON transmission

X Gao, Y Cai, B Xu, FK Deynu, K Qiu - IEEE Access, 2020 - ieeexplore.ieee.org
We propose a novel zero guard band (ZGB) multi-twin-SSB bidirectional passive optical
network system which combines the multiband carrier-less amplitude phase and twin single …

Carrier-phase estimation for 16-QAM optical coherent systems using QPSK partitioning with barycenter approximation

I Fatadin, D Ives, SJ Savory - Journal of lightwave technology, 2014 - ieeexplore.ieee.org
This paper presents a hardware-efficient carrier phase estimator with high-linewidth
tolerance for 16-QAM optical coherent systems. The laser phase noise is estimated using …

QD-MLL-based single-sideband superchannel generation scheme with Kramers–Kronig direct detection receivers

M Al-Qadi, G Vedala, M O'Sullivan, C Xie… - IEEE Photonics …, 2019 - ieeexplore.ieee.org
For their capability of electronic dispersion compensation, transmission systems based on
direct detection of single-sideband (SSB) signals are attractive candidates as energy …

Multichannel 16-QAM single-sideband transmission and Kramers–Kronig detection using a single QD-MLL as the light source

ALQ Mustafa, C Laperle, D Charlton… - Journal of Lightwave …, 2020 - ieeexplore.ieee.org
A 12-channel single-sideband transmission of 16-QAM signals at 18 GBd is experimentally
demonstrated for the first time using a single quantum-dot mode-locked laser (QD-MLL) as …

Cycle-slip-less low-complexity phase recovery algorithm for coherent optical receivers

VN Rozental, D Kong, B Foo, B Corcoran, AJ Lowery - Optics Letters, 2017 - opg.optica.org
We propose and experimentally validate a blind phase recovery algorithm based on tracking
low-frequency components of the phase noise, which we call “filtered carrier-phase …

Adaptive boundaries scheme for cycle-slip mitigation in C-mQAM coherent systems

JR Navarro, X Pang, A Kakkar… - IEEE Photonics …, 2015 - ieeexplore.ieee.org
We propose a method for cycle-slip mitigation in circular multilevel quadrature amplitude
modulation (C-mQAM) coherent optical systems, with constellation rotational asymmetry …

Low overhead slipless carrier phase estimation scheme

H Cheng, Y Li, D Kong, J Zang, J Wu, J Lin - Optics Express, 2014 - opg.optica.org
Two slipless schemes are compared with application to single carrier 30 Gbaud quadrature
phase shift keying (QPSK) system. An equivalent linewidth model considering the phase …

Performance comparison of offset-16QAM and 16QAM for Nyquist WDM superchannel with digital spectral shaping

M Xiang, H Tang, S Fu, M Tang, P Shum… - Journal of Lightwave …, 2015 - opg.optica.org
We investigate five-channel polarization division multiplexed Nyquist WDM superchannel
using offset-16QAM and 16QAM modulation format, under the condition of transmitter-side …