Spatiotemporal characterization of supercontinuum extending from the visible to the mid-infrared in a multimode graded-index optical fiber

被引：113

作者：

Krupa, K. ^{[1
,2
]}

Louot, C. ^{[1
]}

Couderc, V. ^{[1
]}

Fabert, M. ^{[1
]}

Guenard, R. ^{[1
]}

Shalaby, B. M. ^{[1
,3
]}

Tonello, A. ^{[1
]}

Pagnoux, D. ^{[1
]}

Leproux, P. ^{[1
]}

Bendahmane, A. ^{[2
]}

Dupiol, R. ^{[2
]}

Millot, G. ^{[2
]}

Wabnitz, S. ^{[4
,5
]}

机构：

[1] Univ Limoges, XLIM, UMR CNRS 7252, 123 Ave A Thomas, F-87060 Limoges, France

[2] Univ Bourgogne Franche Comte, ICB UMR CNRS 6303, 9 Ave A Savary, F-21078 Dijon, France

[3] Tanta Univ, Dept Phys, Fac Sci, Tanta 31527, Egypt

[4] Univ Brescia, Dipartimento Ingn Informaz, Via Branze 38, I-25123 Brescia, Italy

[5] Univ Brescia, INO CNR, Via Branze 38, I-25123 Brescia, Italy

来源：

OPTICS LETTERS | 2016年 / 41卷 / 24期

关键词：

INSTABILITY; GENERATION;

D O I：

10.1364/OL.41.005785

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We experimentally demonstrate that pumping a graded-index multimode fiber with sub-ns pulses from a microchip Nd:YAG laser leads to spectrally flat supercontinuum generation with a uniform bell-shaped spatial beam profile extending from the visible to the mid-infrared at 2500 nm. We study the development of the supercontinuum along the multimode fiber by the cut-back method, which permits us to analyze the competition between the Kerr-induced geometric parametric instability and stimulated Raman scattering. We also performed a spectrally resolved temporal analysis of the supercontinuum emission. (C) 2016 Optical Society of America.

引用

页码：5785 / 5788

页数：4

共 18 条

[1] Supercontinuum generation in photonic crystal fiber [J].