Theoretical Evaluation of Combined Nonlinearities and Amplified Spontaneous Emission Noise Penalties in Optical Star WDM Networks Based on ITU-T conforming Optical Fibers

Abstract

This paper investigates the Quality-factor (Q-factor) deterioration due to individual effects of stimulated Raman scattering, cross-phase modulation, and four-wave mixing and their collective impact on system Q-factor in presence of amplified spontaneous emission noise for various ITU-T compliant fibers (G.652, G. 652D, G. 653, G. 654, and G.655), considering the optical frequency grid based on ITU-T Recommendation G.692. The results obtained through the developed mathematical model show very clearly that the performance of G.653 fiber is worst compared to other fiber types, thus justifying the preferred use of fibers with high dispersion and effective area values (G.652, G.652D, G.654, and G.655) over G.653 in view of combating the deleterious effects of nonlinearities. The results suggest that with the use of a fiber having low dispersion and effective area values, it may not be possible to obtain the desired error rate of 10⁻⁹ (Q=6). The simulation results make it evident that deterioration due to nonlinearities is not the same for different fiber types which suggest the nature of limitations due to different nonlinearities and fiber types.

Keywords:

• Amplified spontaneous emission noise
• Cross-phase modulation
• Four-wave mixing
• Optical star network
• Stimulated Raman scattering
• Wavelength division multiplexing.

Additional information

Notes on contributors

Sridhar Iyer

Sridhar Iyer received his B.E degree in Electronics and Telecommunications Engineering from Don Bosco Institute of Technology, University of Mumbai in 2005 and Master of Science (M.S) in Electrical and Computer Engineering from Klipsch school of Electrical & Computer Engineering, New Mexico State University, Las Cruces, NM, USA in 2008. He is currently working towards his Ph.D. in the area of impact of PLIs on WDM systems and the design of efficient PLI-RWA algorithms for WDM optical systems at the Division of ECE, Netaji Subhas Institute of Technology (NSIT), New Delhi, India. His current area of research is optical WDM networks. E-mail: [email protected]

S. P. Singh

S. P. Singh received his B.E. degree in Electronics and Communication Engineering from MMM Engineering College, Gorakhpur in 1990 and M.Tech degree from REC, Kurukshetra in 1994. He holds a Doctoral Degree in Optical Networks from the Indian Institute of Technology, Delhi (IITD) in 2007. During 1994–2000 he worked as Lecturer in Department of Electronics and Computer Engineering at REC Kurukshetra. In October 2000 he joined as Lecturer in Department of Electronics, Netaji Subhas Institute of Technology (formally known as Delhi Institute of Technology New Delhi). Presently he is an Associate Professor at the Division of Electronics and Communication Engineering, Netaji Subhas Institute of Technology, New Delhi. His current area of research is Optical Networks. E-mail: [email protected]