Nonlinear beam self-cleaning in a coupled cavity composite laser based on multimode fiber

被引：39

作者：

Guenard, R. ^{[1
]}

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

Dupiol, R. ^{[2
]}

Fabert, M. ^{[1
]}

Bendahmane, A. ^{[2
]}

Kermene, V. ^{[1
]}

Desfarges-Berthelemot, A. ^{[1
]}

Auguste, J. L. ^{[1
]}

Tonello, A. ^{[1
]}

Barthelemy, A. ^{[1
]}

Millot, G. ^{[2
]}

Wabnitz, S. ^{[3
,4
,5
]}

Couderc, V. ^{[1
]}

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

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

[5] Novosibirsk State Univ, 1 Pirogova Str, Novosibirsk 630090, Russia

来源：

OPTICS EXPRESS | 2017年 / 25卷 / 19期

基金：

欧盟地平线“2020”;

关键词：

MODE OPERATION; AMPLIFIER;

D O I：

10.1364/OE.25.022219

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study a coupled cavity laser configuration where a passively Q-switched Nd: YAG microchip laser is combined with an extended cavity, including a doped multimode fiber. For appropriate coupling levels with the extended cavity, we observed that beam self-cleaning was induced in the multimode fiber thanks to nonlinear modal coupling, leading to a quasi-single mode laser output. In the regime of beam self-cleaning, laser pulse duration was reduced from 525 to 225 ps. We also observed a Q-switched mode-locked operation, where spatial self-cleaning was accompanied by far-detuned nonlinear frequency conversion in the active multimode fiber. (C) 2017 Optical Society of America

引用

页码：22219 / 22227

页数：9

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