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

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

In this paper, four modulation formats including nonreturn-to-zero (NRZ), nonreturn-to-zero raised cosine (NRZ-RC), return-to-zero (RZ), return-to-zero raised cosine (RZ-RC) DWDM system with different hybrid optical amplifiers are introduced. We show that NRZ-DPSK and RZ-DPSK degrade the performance...

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Veröffentlicht in:Optik (Stuttgart) 2013-08, Vol.124 (15), p.2131-2134
Hauptverfasser: Singh, Simranjit, Kaler, R.S.
Format: Artikel
Sprache:eng
Schlagworte:
Acceptable noise levels
Amplifiers
DWDM system
Format
Hybrid optical amplifier
Hybrid systems
Modulation
Modulation formats
Noise levels
Optical communication
Quality factor
Transmission distance
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Zusammenfassung:In this paper, four modulation formats including nonreturn-to-zero (NRZ), nonreturn-to-zero raised cosine (NRZ-RC), return-to-zero (RZ), return-to-zero raised cosine (RZ-RC) DWDM system with different hybrid optical amplifiers are introduced. We show that NRZ-DPSK and RZ-DPSK degrade the performance when Raman amplifier is considered. The obtained results reported that RZ and RZ-RC DWDM system with Raman-EDFA provide better results and cover 1512 and 1260km of transmission distance, respectively, with acceptable quality factor (>15dB) and bit error rate (
ISSN:0030-4026
1618-1336
DOI:10.1016/j.ijleo.2012.06.060