Nonlinear mode conversion for intermodal four-wave mixing Stokes and anti-Stokes in a multimode fiber

被引：0

作者：

Pourbeyram, Hamed ^{[1
,2
]}

Mafi, Arash ^{[1
,2
]}

机构：

[1] Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA

[2] Univ New Mexico, Ctr High Technol Mat, Albuquerque, NM 87106 USA

来源：

NONLINEAR FREQUENCY GENERATION AND CONVERSION: MATERIALS AND DEVICES XVI | 2017年 / 10088卷

基金：

美国国家科学基金会;

关键词：

Multimode optical fibers; Nonlinear optics; Mode conversion; Optical fibers; Four-wave mixing; Optically induced long-period grating; PULSE-PROPAGATION; OPTICAL-FIBERS; GENERATION; GRATINGS;

D O I：

10.1117/12.2252729

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

In this paper we study, both experimentally and by theory, a new nonlinear dynamic in multimode optical fiber where intermodal four-wave mixing (IM-FWM) and Kerr-induced nonlinear mode coupling (NLC) are strongly interacting. We show that presence of phase-matched IM-FWM and strong nonlinear mode coupling results in an unprecedented saturable mode conversion in the FWM anti-Stokes beam. We investigate the evolution of modal conversion as a function of fiber length and show that the result of this novel nonlinear dynamic is a controllable, length independent mode conversion. Our theoretical calculations suggest that the converted anti-Stokes beam can also be amplified via IM-FWM. We observe a mode conversion with an efficiency as high as 90 percent.

引用

页数：6

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