Nonlinear Kerr and intermodal four-wave mixing effect in mode-division multiplexed multimode fiber link

Rajan Gupta; Rajinder Singh Kaler

doi:10.1117/1.OE.58.3.036108

20 March 2019 Nonlinear Kerr and intermodal four-wave mixing effect in mode-division multiplexed multimode fiber link

Rajan Gupta, Rajinder Singh Kaler

Author Affiliations +

Optical Engineering, Vol. 58, Issue 3, 036108 (March 2019). https://doi.org/10.1117/1.OE.58.3.036108

Abstract

We represent the effect of nonlinear propagation in mode-division multiplexed multimode fiber (MMF) link. The effect of intermodal four-wave mixing (IMFWM) and intramodal FWM for waves with different spatial modes (LP₀₁, LP₀₂, LP₁₁, and LP₁₂) over MMF has been analyzed with the help of an optical spectrum analyzer using VPI Photonics/VPI transmission Maker™ version 9.7 simulator. It can be concluded that high launch power and low dispersion generated sidebands in the cases of both intermodal and intramodal FWM. These FWM products grow in number with variation in wavelength of probe as well as these products grow toward the central pump frequency of that particular mode. It mathematically represents the multimode nonlinear propagation of different mode groups (containing N spatial modes in each group) in MMF due to Kerr effect. Thus, nonlinear interaction between modes results in interference that degrades the performance of multichannel mode-division multiplexed systems. To achieve full-phase matching and reduce the effect of IMFWM, chromatic dispersion has been increased in each spatial mode throughout the link.

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Rajan Gupta and Rajinder Singh Kaler "Nonlinear Kerr and intermodal four-wave mixing effect in mode-division multiplexed multimode fiber link," Optical Engineering 58(3), 036108 (20 March 2019). https://doi.org/10.1117/1.OE.58.3.036108

Received: 20 January 2019; Accepted: 1 March 2019; Published: 20 March 2019

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