Effects of ASE on DPSK Modulation Formats with Different Duty-Ratio in Optical Transmission System

Jin Hang Hu; Ya Lin Guan; Jin Cai Lin

doi:10.4028/www.scientific.net/AMM.385-386.1595

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 385-386Effects of ASE on DPSK Modulation Formats with...

Effects of ASE on DPSK Modulation Formats with Different Duty-Ratio in Optical Transmission System

Abstract:

In optical networks, erbium-doped fiber amplifiers (EDFAs) are used to provide a wide and flat gain spectrum. Amplified Spontaneous Emission (ASE) emitted from EDFA adds to signal and grows rapidly. This accumulated ASE noise may limit the effective amplification due to saturation effect and affects the receivers bit error ratio (BER). In this paper, we show the impact of ASE noise in transmission fiber by using three different modulation formats: 33%DPSK, 66%DPSK and DPSK. In recent years, optical fiber communication system began to use the DPSK (Differential Phase Shift Keying) format to replace the traditional OOK format, which has been intensively investigated in numerical and experimental works.

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Periodical:

Applied Mechanics and Materials (Volumes 385-386)

Pages:

1595-1598

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.385-386.1595

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Online since:

August 2013

Authors:

Jin Hang Hu, Ya Lin Guan, Jin Cai Lin

Keywords:

33%DPSK, 66%DPSK, ASE, DPSK, EDFA, SSMF

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References

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