Simulation of two-mode fiber optic link with chromatic dispersion compensation at line amplifiers

The article presents an analysis of the methods of chromatic dispersion compensation in the existing, already built fiber optic telecommunications lines, based on ITU G.652 A and B fibers with the constantly growing demand for bit rates in DWDM systems. Due to the enormous investment costs, it is impossible to replace the cables used with NZDSF, hence the chapter analyzes methods of improving the bandwidth without replacing all cables. Typical models of the optimization of chromatic dispersion in the existing lines are presented.

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Mitigation of Chromatic Dispersion in Fiber-Optic Link Using Dual-Drive Mach-Zehnder Modulator and Heterodyne Detection Technique

2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) ◽

10.1109/imoc43827.2019.9317600 ◽

2019 ◽

Author(s):

Robson R. Carreira ◽

Joaquim J. Barroso ◽

Jose E. B. Oliveira

Keyword(s):

Fiber Optic ◽

Chromatic Dispersion ◽

Detection Technique ◽

Heterodyne Detection ◽

Mach Zehnder Modulator

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Chromatic dispersion compensation employing cascaded parallel optical all-pass filter

2010 7th International Symposium on Communication Systems, Networks & Digital Signal Processing (CSNDSP 2010) ◽

10.1109/csndsp16145.2010.5580347 ◽

2010 ◽

Author(s):

W. P. Ng ◽

W. Loedhammacakra ◽

R.A. Cryan ◽

Z. Ghassemlooy

Keyword(s):

Dispersion Compensation ◽

Chromatic Dispersion ◽

Pass Filter

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Chromatic Dispersion Compensation of OOK Signals With MLSE Utilizing Diverse VSB Filtering

IEEE Photonics Technology Letters ◽

10.1109/lpt.2008.2004967 ◽

2008 ◽

Vol 20 (23) ◽

pp. 1893-1895 ◽

Cited By ~ 5

Author(s):

Ming Li ◽

Fan Zhang ◽

Zhangyuan Chen ◽

Anshi Xu

Keyword(s):

Dispersion Compensation ◽

Chromatic Dispersion

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Optical OFDM for Downstream Transmission in Long-Reach PON

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.631-632.860 ◽

2014 ◽

Vol 631-632 ◽

pp. 860-863 ◽

Cited By ~ 1

Author(s):

Xiao Xue Gong ◽

Hui Li ◽

Peng Chao Han ◽

Yu Fang Zhou

Keyword(s):

Orthogonal Frequency Division Multiplexing ◽

Direct Detection ◽

Dispersion Compensation ◽

Chromatic Dispersion ◽

Optical Network ◽

Digital Signal ◽

Least Square ◽

Passive Optical Network ◽

Spectrum Efficiency ◽

Flexible Resource

Orthogonal Frequency Division Multiplexing (OFDM) has gained great attention in the next generation Long-Reach Passive Optical Network (LR-PON) due to its high spectrum efficiency, flexible resource allocation and natural compatibility with Digital Signal Processing (DSP)-based implementation. In this paper, we propose and demonstrate a 40Gbit/s direct-detection long reach OFDM-PON system for downstream transmission over 100km standard signal mode fiber (SSMF). By using a simple Least Square (LS) method for the channel estimation, our proposed system achieves high bit rate without the need for chromatic dispersion compensation.

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