Abstract

In this paper, analytical solutions in the form of Jacoby functions are found for the first time of the nonlinear set of short-cut equations describing the generation of third harmonics. Additionally, the short-cut equations are extended to a set of equations, where the influences of self-phase modulation and cross-phase modulation on the process of third harmonics generation is taken into account. This nonlinear set correctly describes the processes of energy exchange between two laser beams propagating in multi-mode fibers. We solved this new set and the solutions are again in the form of Jacobi functions. The difference is in the elliptical period present in the new set, where the influence of the intensities of both waves is significant. The three nonlinear processes work simultaneously in cubic media. Thus, the new set of equations describes more precisely the period of energy transfer in the process of third harmonic generation.

Details

Title
Energy exchange during third harmonic generation in multi-mode optical fibers
Author
Kasapeteva, Z 1 ; Dakova, A 2 ; Slavchev, V 3 ; Dakova, D 4 ; Kovachev, L 1 ; Kovachev, K 1 

 Institute of Electronics, Bulgarian Academy of Sciences, 72 Tsarigradsko Chaussee, 1784 Sofia, Bulgaria 
 Institute of Electronics, Bulgarian Academy of Sciences, 72 Tsarigradsko Chaussee, 1784 Sofia, Bulgaria; Faculty of Physics and Technology, Paisii Hilendarski University of Plovdiv, 24 Tsar Asen Str., 4000 Plovdiv, Bulgaria 
 Institute of Electronics, Bulgarian Academy of Sciences, 72 Tsarigradsko Chaussee, 1784 Sofia, Bulgaria; Faculty of Pharmacy, Medical University – Plovdiv, 15-A Vasil Aprilov Blvd., 4002 Plovdiv, Bulgaria 
 Faculty of Physics and Technology, Paisii Hilendarski University of Plovdiv, 24 Tsar Asen Str., 4000 Plovdiv, Bulgaria 
Publication year
2021
Publication date
Mar 2021
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2511967215
Copyright
© 2021. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.