Chromatic Dispersion Estimation Method for Nyquist and Faster Than Nyquist Coherent Optical Systems

2014 ◽  
Author(s):  
Nebojša Stojanović ◽  
Fotini Karinou ◽  
Bangning Mao
Keyword(s):  
Chromatic Dispersion ◽  
Estimation Method ◽  
Optical Systems

scholarly journals Data-Aided Chromatic Dispersion Estimation for Polarization Multiplexed Optical Systems

2012 ◽  
Vol 4 (5) ◽  
pp. 2037-2049 ◽  
Author(s):  
C. C. Do ◽  
A. V. Tran ◽  
Chen Zhu ◽  
Simin Chen ◽  
T. Anderson ◽  
...  
Keyword(s):  
Chromatic Dispersion ◽  
Optical Systems

scholarly journals Global Estimation and Compensation of Linear Effects in Coherent Optical Systems based on Nonlinear Least Squares

2021 ◽  
Author(s):  
Alexandru Frunza ◽  
Vincent Choqueuse ◽  
Pascal Morel ◽  
Stéphane Azou
Keyword(s):  
Least Squares ◽  
Carrier Frequency Offset ◽  
Chromatic Dispersion ◽  
Nonlinear Least Squares ◽  
Digital Signal ◽  
Optical Systems ◽  
Computational Time ◽  
Iq Imbalance ◽  
Linear Effects ◽  
Compensation Approach

This paper proposes a new estimation and compensation approach to mitigate several linear and widely linear effects in coherent optical systems using digital signal processing (DSP) algorithms. Compared to most of the available strategies that employ local estimation and/or compensation algorithms, this approach performs a global impairments estimation and compensation based on Nonlinear Least Squares. The proposed method estimates and compensates for the chromatic dispersion (CD), carrier frequency offset (CFO), in-phase/quadrature (IQ) imbalance, and laser phase noise (PN) in two steps. Firstly, it estimates the quasi-static parameters related to the CD, CFO, and both transmitter and receiver IQ imbalance. Secondly, it estimates both transmitter and receiver lasers’ phases and compensates for all the imperfections by using a Zero-Forcing (ZF) equalizer. Simulations show the effectiveness of the approach in terms of statistical performance and computational time. The estimation performance is assessed by computing the Cramér Rao Lower Bound (CRLB), while the detection performance is compared to a modified Clairvoyant equalizer.<br>

scholarly journals Delay-Tap-Sampling-Based Chromatic Dispersion Estimation Method With Ultra-Low Sampling Rate for Optical Fiber Communication Systems

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 101004-101013
Author(s):  
Du Tang ◽  
Xinxin Wang ◽  
Lingwei Zhuang ◽  
Peng Guo ◽  
Aiying Yang ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Communication Systems ◽  
Chromatic Dispersion ◽  
Sampling Rate ◽  
Estimation Method ◽  
Optical Fiber Communication ◽  
Fiber Communication

Blind and Low Complexity CD Compensation and Estimation Method in DSP based Coherent Optical Systems

2012 ◽  
Author(s):  
E. Matarazzo ◽  
R. Corsini ◽  
A. Peracchi ◽  
T. Foggi ◽  
G. Meloni ◽  
...  
Keyword(s):  
Estimation Method ◽  
Low Complexity ◽  
Optical Systems
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