Price-Points for Components of Multi-Core Fiber Communication Systems in Backbone Optical Networks

In the recent years, the optical networks have grown to unexpected dimensions. The growth of active users and growing demand for data services set high requirements to network providers. Driving forces of this growth are multimedia, cloud computing and web services which set high bandwith demand. The majority of currently deployed optical networks utilize passive or active network structure using dominantly singlemode optical fiber (SMF). SMF is believed to be the better choice over multimode optical fiber (MMF) for high speed optical fiber communication systems. And in some applications it definitely is. MMF has found use especially for short distance communication as it easily supports distances required for interconnecting building, data centres or campuses. In this paper we present a simulation model of 1000BASE-LX Ethernet with MMF using different optical modulation techniques. The aim of this article is to demonstrate possibilities of MMF based 1000BASE-LX Ethernet with directly modulated vertical-cavity surface-emitting laser (VCSEL).

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Effects of Polarization-Mode Dispersion on Fiber Communication Systems

10.21236/ada405607 ◽

2002 ◽

Author(s):

Jianke Yang

Keyword(s):

Communication Systems ◽

Polarization Mode Dispersion ◽

Polarization Mode ◽

Fiber Communication ◽

Mode Dispersion

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Crosstalk-Aware Shared Backup Path Protection in Multi-Core Fiber Elastic Optical Networks

Journal of Lightwave Technology ◽

10.1109/jlt.2021.3064935 ◽

2021 ◽

pp. 1-1

Author(s):

Fengxian Tang ◽

Gangxiang Shen ◽

George Rouskas

Keyword(s):

Optical Networks ◽

Backup Path ◽

Path Protection ◽

Core Fiber

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Novel Manchester-Based Multilevel Signaling for High-Speed Optical Communication Systems

Journal of Optical Communications ◽

10.1515/joc-2018-0139 ◽

2019 ◽

Vol 0 (0) ◽

Cited By ~ 1

Author(s):

Festus Idowu Oluwajobi ◽

Nguyen Dong-Nhat ◽

Amin Malekmohammadi

Keyword(s):

Communication Systems ◽

High Speed ◽

Chromatic Dispersion ◽

Optical Fiber Communication ◽

Pulse Amplitude ◽

Calculation Model ◽

Fiber Communication ◽

Receiver Sensitivity ◽

Communication Links ◽

Dispersion Tolerance

AbstractIn this paper, the performance of a novel multilevel signaling based on Manchester code namely four-level Manchester Coding (4-MC) technique is investigated for next generation high-speed optical fiber communication links. The performance of 4-MC is studied and compared with conventional Manchester modulation and four-level pulse amplitude modulation (4-PAM) formats in terms of receiver sensitivity, spectral efficiency and dispersion tolerance at the bit rate of 40 Gb/s. The bit error rate (BER) calculation model for the proposed multilevel scheme has also been developed. The calculated receiver sensitivity and the chromatic dispersion tolerance at the BER of 10–9 of the proposed scheme are −22 dBm and 67.5 ps/nm, respectively. It is observed that, 4-MC scheme is superior in comparison to 4-PAM by 3.5 dB in terms of receiver sensitivity in back-to-back scenario. Therefore, the proposed scheme can be considered as an alternative to current 4-PAM system.

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