Kerr beam self-cleaning and supercontinuum generation in a graded-index few-mode photonic crystal fiber

Fathima M. A. Shabana,Vincent Tombelaine,Guillaume Huss,Amar Nath Ghosh,Thibaut Sylvestre,Jean-Louis Auguste,Marc Fabert,Alessandro Tonello,Vincent Couderc,Francois Reynaud,Philippe Leproux

2021 CONFERENCE ON LASERS AND ELECTRO-OPTICS EUROPE & EUROPEAN QUANTUM ELECTRONICS CONFERENCE (CLEO/EUROPE-EQEC)（2021）

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摘要

Multimode optical fibers (MMFs) are an excellent alternative to single-mode fibers for applications where high power level is required or for investigating spatiotemporal nonlinear wave propagation [1] . Recent experiments have shown that it is possible to achieve a speckleless output beam in MMF through a novel nonlinear effect called Kerr-induced beam self-cleaning (KBSC) [2] . This effect has been observed in a wide variety of MMFs, including standard graded-index (GRIN) MMFs and photonic crystal fibers (PCFs). Here, we report on the observation of low-peak-power KBSC and supercontinuum generation (SCG) in a few-mode PCF with a GRIN core.

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关键词

GRIN core,graded-index few-mode photonic crystal fiber,nonlinear effect,few-mode PCF,supercontinuum generation,low-peak-power KBSC,graded-index MMFs,speckleless output beam,spatiotemporal nonlinear wave propagation,high power level,single-mode fibers,multimode optical fibers,Kerr beam self-cleaning

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