Phase noise tolerance study in coherent optical circular QAM transmissions with Viterbi-Viterbi carrier phase estimation

SO Zafra, X Pang, G Jacobsen, S Popov… - Optics express, 2014 - opg.optica.org
We present a performance evaluation of a non-conventional approach to implement phase
noise tolerant optical systems with multilevel modulation formats. The performance of …

[PDF][PDF] 基于简化扩展卡尔曼滤波的双偏振载波相位恢复算法

李耀祖, 王目光, 郭玉箫, 牟宏谦 - Acta Optica Sinica, 2019 - researching.cn
摘要提出一种基于简化扩展卡尔曼滤波(EKF) 的低复杂度, 双偏振载波相位恢复算法,
记为XYGEKF 算法. XYGEKF 算法通过估计并补偿两个偏振态之间的相位偏移, 只利用X …

Iterative detection and phase-noise compensation for coded multichannel optical transmission

AF Alfredsson, E Agrell… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
The problem of phase-noise compensation for correlated phase noise in coded
multichannel optical transmission is investigated. To that end, a simple multichannel phase …

Low-complexity carrier phase recovery for square M-QAM based on S-BPS algorithm

X Zhou, C Lu, APT Lau, K Long - IEEE Photonics Technology …, 2014 - ieeexplore.ieee.org
Minimum distance blind phase search (BPS) algorithm has good tolerance to laser linewidth
but with high computational complexity. In this letter, a novel substitution algorithm, ie …

Low computation complexity two-stage feedforward carrier recovery algorithm for M-QAM

Q Zhuge, C Chen, DV Plant - Optical Fiber Communication …, 2011 - opg.optica.org
We propose a modified two-stage feedforward carrier recovery algorithm for M-QAM formats
that achieves a 3x reduction in computation complexity compared to a single-stage …

Modulation-transparent and robust frequency offset and phase tracking scheme using self-learning Kalman filter for intelligent receiver

Q Xiang, Y Yang, Q Zhang, Y Yao - Journal of Lightwave …, 2021 - ieeexplore.ieee.org
A joint and robust frequency offset (FO) and phase noise tracking scheme using self-
learning Kalman filter is proposed and demonstrated experimentally. In our scheme, a self …

Low overhead intra-symbol carrier phase recovery for reduced-guard-interval CO-OFDM

Q Zhuge, MH Morsy-Osman… - Journal of lightwave …, 2013 - ieeexplore.ieee.org
We propose intra-symbol carrier phase recovery (IS-CPR) for reduced-guard-interval (RGI)
CO-OFDM in order to compensate for the intra-symbol phase shift (ISPS) between …

[HTML][HTML] Improved carrier phase recovery for high-capacity optical communication systems with high-order modulation formats

Y Zhang, T Liu, C Jin, T Xu, M Tan, J Zhao, T Xu - Optics Communications, 2024 - Elsevier
Abstract A modified Viterbi-Viterbi (MVV) carrier phase recovery (CPR) algorithm is
comprehensively studied based on the quadrature phase-shift-keying (QPSK) partition …

Low-complexity and modulation-format-independent carrier phase estimation scheme using linear approximation for elastic optical networks

T Yang, X Chen, S Shi, E Sun, C Shi - Optics Communications, 2018 - Elsevier
We propose a low-complexity and modulation-format-independent carrier phase estimation
(CPE) scheme based on two-stage modified blind phase search (MBPS) with linear …

Long external cavity Si photonic wavelength tunable laser diode

T Kita, K Nemoto, H Yamada - Japanese journal of applied …, 2014 - iopscience.iop.org
We fabricated wavelength-tunable laser diodes with external cavity consist of Si photonic
wire waveguide ring resonators. About 51.5 nm wavelength tuning operation, which covers …