Investigation of hybrid optical amplifiers with different modulation formats for DWDM optical communication system

Optik ◽  
2013 ◽  
Vol 124 (15) ◽  
pp. 2131-2134 ◽  
Author(s):  
Simranjit Singh ◽  
R.S. Kaler
Keyword(s):  
Optical Communication ◽  
Communication System ◽  
Optical Amplifiers ◽  
Optical Communication System ◽  
Modulation Formats

scholarly journals Comparison of the Optical Amplifiers EDFA and SOA Based on the BER and Q-Factor in C-Band

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Tomáš Ivaniga ◽  
Petr Ivaniga
Keyword(s):  
Wavelength Division Multiplexing ◽  
Optical Communication ◽  
Communication System ◽  
Optical Amplifiers ◽  
Software Tool ◽  
Optical Amplifier ◽  
Communication Line ◽  
Optical Communication System ◽  
Wavelength Division ◽  
Fibre Amplifier

Currently it is not possible to create a fully optical communication system without a software tool which simulates an optical communication line in real conditions prior to its construction. The aim of this article is to establish a comparison between the EDFA (erbium doped fibre amplifier) and SOA (semiconductor optical amplifier) optical amplifiers in the WDM (wavelength division multiplexing) system. The system contains a four-channel WDM with speed of 10 Gbps and optical fibre with length of 80 km. Simulations are conducted in the programme environment “OptSim.” The quality of the optical communication system is evaluated by the BER (bit error rate) and Q-factor for individual wavelengths, namely, of 1558 nm and 1562 nm, which are within the C-band.

Dispersion characteristics and compensation in the POLMUX coherent optical communication system

2017 ◽  
Vol 31 (19-21) ◽  
pp. 1740054
Author(s):  
Guijun Zhu ◽  
Xiukai Ruan ◽  
Zhili Zhou
Keyword(s):  
Optical Fiber ◽  
Optical Communication ◽  
Communication System ◽  
High Speed ◽  
Polarization Mode Dispersion ◽  
Optical Fiber Communication ◽  
Dispersion Characteristics ◽  
Optical Communication System ◽  
Modulation Formats ◽  
Coherent Optical Communication

The trend of high-speed optical communication is to realize large capacity, fast speed and long haul transmission. However, the dispersion in an optical fiber link can cause signals distortion or even inter symbol interference (ISI). With increasing signal rate and transmission distance in the optical communication system, the development of high-speed optical fiber communication is restricted seriously. This paper is focusing on the dispersion characteristics and compensation of the polarization multiplexing (POLMUX) coherent optical communication system: (i) to study on dispersion theoretically, e.g., chromatic dispersion (CD), polarization mode dispersion (PMD) and dispersion tolerance; (ii) to analyze and compare the performance of dispersion with various 16-ary modulation formats; (iii) to compensate dispersion by the classical dispersion compensation methods.

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