Spatiotemporal light-beam compression from nonlinear mode coupling

被引：49

作者：

Krupa, Katarzyna ^{[1
]}

Tonello, Alessandro ^{[2
]}

Couderc, Vincent ^{[2
]}

Barthelemy, Alain ^{[2
]}

Millot, Guy ^{[3
]}

Modotto, Daniele ^{[1
]}

Wabnitz, Stefan ^{[1
,4
]}

机构：

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

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

[3] Univ Bourgogne, ICB, UMR CNRS 6303, 9 Av A Savary, F-21078 Dijon, France

[4] CNR, INO, Via Branze 45, I-25123 Brescia, Italy

来源：

PHYSICAL REVIEW A | 2018年 / 97卷 / 04期

基金：

欧洲研究理事会;

关键词：

INDEX MULTIMODE FIBERS; OPTICAL-FIBER; INSTABILITY; SOLITONS;

D O I：

10.1103/PhysRevA.97.043836

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We experimentally demonstrate simultaneous spatial and temporal compression in the propagation of light pulses in multimode nonlinear optical fibers. We reveal that the spatial beam self-cleaning recently discovered in graded-index multimode fibers is accompanied by significant temporal reshaping and up to fourfold shortening of the injected subnanosecond laser pulses. Since the nonlinear coupling among the modes strongly depends on the instantaneous power, we explore the entire range of the nonlinear dynamics with a single optical pulse, where the optical power is continuously varied across the pulse profile.

引用

页数：6

共 25 条

[1] Condensation and thermalization of classsical optical waves in a waveguide [J].