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Investigation of hybrid optical amplifiers with different modulation formats for DWDM optical communication system
- Source :
-
Optik - International Journal for Light & Electron Optics . Aug2013, Vol. 124 Issue 15, p2131-2134. 4p. - Publication Year :
- 2013
-
Abstract
- Abstract: 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 (<10−9). Further, it is also confirmed that using the hybrid optical amplifiers is a best alternative to increase the span distance. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00304026
- Volume :
- 124
- Issue :
- 15
- Database :
- Academic Search Index
- Journal :
- Optik - International Journal for Light & Electron Optics
- Publication Type :
- Academic Journal
- Accession number :
- 87824893
- Full Text :
- https://doi.org/10.1016/j.ijleo.2012.06.060