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ABSTRACT
We present the results of investigation of influence of amplified spontaneous emission (ASE) noise, noise figure (NF) and dispersion chromatic on the performance of middle-distance dense-wavelength-division-multiplexing (DWDM) networks using low-power pumped distributed Raman amplifiers (DRAs) in two different pump configurations, i.e., forward and backward pumping. We found that the pumping configurations, ASE noise, and dispersion play an important role for improving the network performance by reduction of NF and bit error rate (BER) of the system. Simulation results show that the lowest BER and low NF were obtained, when using the forward pumping configuration. Moreover, we have also compared ASE noise powers of the simulation with this experiment. These results conclude that DRA with low pump power (<1 W) is the promising key technology for short- and/or middle-distance DWDM transmission networks.
Acknowledgements
The work was supported by VNU Development Fund of Science and Technology, and VNU Scientists Club (VSL-VNU Scientific Links).
Disclosure statement
No potential conflict of interest was reported by the authors.
Additional information
Notes on contributors
Trung Ninh Bui
Trung Ninh Bui was born in 1981 in Thai Binh, Vietnam. He received the BSc and MSc degrees respectively in 2004 and in 2008, both at the College of Technology (COLTECH), Vietnam National University, Hanoi, Vietnam (VNU), where he has been a lecturer since 2005. He is currently a PhD student at the University of Engineering and Technology, VNU. He is the author and coauthor of several papers on networks and communications. His present research interest is in optical communication.
E-mail: [email protected]
Quoc Tuan Nguyen
Quoc Tuan Nguyen graduated from University of Science, VNUH in 1980 and received the Master and PhD degrees from University of Engineering and Technology, Vietnam National University, Hanoi (UET, VNUH) in 1986 and 2009, respectively. He is now a professor of UET, VNUH and head of Networks and Communication Systems, Faculty of Electronics and Telecommunication.
E-mail: [email protected]
Van Hoi Pham
Van Hoi Pham graduated in physics from Azerbaijan State University (former Soviet Union) in 1974 and in 1986 received the PhD degree from Lebedev's Physics Institute, Russian Academy of Sciences in Moscow. Currently, he is a senior scientist of Institute of Materials Science, Vietnam Academy of Science and Technology, Hanoi, Vietnam. He also teaches electro-magnetic fields and waves and laser technology at the University of Engineering and Technology, Vietnam National University, Hanoi (UET-VNU, Hanoi). His present research interests are in the field of photonic materials and devices, including microcavity lasers and amplifiers.
E-mail: [email protected]