Abstract
Nonlinear effects play a major role in optical fibers and are occurred due to the changes in refractive index of the optical medium with respect to the intensity of light propagation. Four-wave mixing (FWM) and cross-phase modulation (XPM) are the major nonlinear effects that affect the performance of the dense wavelength division multiplexing (DWDM) system. In FWM, three signals are combined to form a fourth spurious mixing component results in waste of power from wanted signals to unwanted spurious signals which lead to cross talk and degrade the system performance. Nonlinear phase changing due to power variations in co-propagating light is called XPM which causes pulse distortion and affects the system transmission capacity. This paper shows the effect of XPM and FWM in return-to-zero (RZ) and non-return-to-zero (NRZ) signals for various ranges of dispersion. The effect has been analyzed based on eye diagrams, Q values, BER values, and FWM power for two, four, and eight channels at 10 Gbps in DWDM systems.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Dewra S, Kaler RS (2013) Performance evaluations of optical add drop multiplexers with Mach-Zehnder interferometer techniques for dense wavelength division multiplexed System. J Opt Technol 80(9):526–531
Singh S, Kaler RS (2013) Comparison of pre-, post- and symmetrical compensation for 96 channel DWDM system Using PDCF and PSMF. Optik 124:1808–1813
Kotb A (2016) Simulation of high quality factor all-optical logic gates based on quantum-dot semiconductor optical amplifier at 1 Tb/S. Optik 127:320–325
Nazemosadat E, Pourbeyram H, Mafi A (2016) Phase matching for spontaneous frequency conversion via four-wave mixing in graded-index multimode optical fibers. J Opt Soc Am B 33(2):144–150
Kashyap K, Singh H, Singh P, Kumar S (2013) Compensation of dispersion in optical fiber using Fiber Bragg Grating (FBG). Int J Adv Res Sci Eng 02(04):124–132. ISSN 2319-8354
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2018 Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Sasikala, V., Chitra, K. (2018). Effects of Cross-phase Modulation and Four-Wave Mixing in DWDM Optical Systems Using RZ and NRZ Signal. In: Gnanagurunathan, G., Sangeetha, R., Kiran, K. (eds) Optical And Microwave Technologies. Lecture Notes in Electrical Engineering, vol 468. Springer, Singapore. https://doi.org/10.1007/978-981-10-7293-2_6
Download citation
DOI: https://doi.org/10.1007/978-981-10-7293-2_6
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-10-7292-5
Online ISBN: 978-981-10-7293-2
eBook Packages: EngineeringEngineering (R0)