Algorithms for blind separation and estimation of transmitter and receiver IQ imbalances

Q Zhang, Y Yang, C Guo, X Zhou, Y Yao… - Journal of Lightwave …, 2019 - ieeexplore.ieee.org
We propose a blind transmitter (Tx) and receiver (Rx) in-phase/quadrature (IQ) amplitude
and phase imbalances estimation scheme based on a combination of analytical modeling …

In-service blind transceiver IQ imbalance and skew monitoring in long-haul non-dispersion managed coherent optical systems

C Ju, N Liu, C Li - IEEE Access, 2019 - ieeexplore.ieee.org
Transceiver imbalance can rapidly degrade system performance, especially when high
symbol rate, high modulation order and low roll-off pulse shape are used. Here, a widely …

Performance of grey‐coded IQM‐based optical modulation formats on high‐speed long‐haul optical communication link

D Kakati, SC Arya - IET Communications, 2019 - Wiley Online Library
In this article the performance of grey‐coded advanced optical modulation formats is
evaluated on a single‐channel high‐speed long‐haul optical communication link and are …

Modulation-format-transparent IQ imbalance estimation of dual-polarization optical transmitter based on maximum likelihood independent component analysis

Q Zhang, Y Yang, C Guo, X Zhou, Y Yao, APT Lau… - Optics express, 2019 - opg.optica.org
We propose and experimentally demonstrate a modulation-format-transparent dual-
polarization (DP) transmitter (Tx) in-phase/quadrature (IQ) imbalance estimation scheme …

High-capacity and rain-resilient free-space optics link enabled by time-adaptive probabilistic shaping

FP Guiomar, A Lorences-Riesgo… - 45th European …, 2019 - ieeexplore.ieee.org
Using time-adaptive probabilistic shaped 64QAM driven by a simple SNR prediction
algorithm, we demonstrate> 450 Gbps transmission over a 55-m free-space optics link with …

Receiver DSP highly tolerant to transmitter IQ impairments

P Skvortcov, C Sanchez-Costa… - 2019 Optical Fiber …, 2019 - ieeexplore.ieee.org
Receiver DSP Highly Tolerant to Transmitter IQ Impairments Page 1 Th1D.2.pdf OFC 2019 ©
OSA 2019 Receiver DSP highly tolerant to transmitter IQ impairments Pavel Skvortcov, Christian …

A pulse shaping based optical transmission system of 128QAM for DWDM with N× 904 Gbps

G Li, J Li - Applied Sciences, 2019 - mdpi.com
In this paper, we propose an optical transmission system of 128 quadrature amplitude
modulation for dense wavelength division multiplexing. In such a system, Gaussian optical …

Efficient timing/frequency synchronization based on sparse fast Fourier transform

J Lu, Q Wu, H Jiang, S Fu, M Tang… - Journal of Lightwave …, 2019 - ieeexplore.ieee.org
Efficient synchronization is of great importance for fiber optical coherent communication
system. Here, we propose an accurate and low-complexity timing/frequency synchronization …

Phase estimation using homodyne detection for continuous variable quantum key distribution

M Zou, Y Mao, TY Chen - Journal of Applied Physics, 2019 - pubs.aip.org
In order to ensure the security of the local oscillator (LO) in continuous variable quantum key
distribution (CV-QKD), the LO in CV-QKD based on the local LO (LLO) scheme no longer …

An RF scanning receiver on a silicon photonic chip

D Onori, A Samani, DV Plant… - 2019 International Topical …, 2019 - ieeexplore.ieee.org
We experimentally demonstrate the first on-chip broadly-tunable RF scanning receiver,
using silicon photonic technology. By exploiting an innovative and simple noise-cancelling …