Laser pulse compression up to few-cycle durations in multicore fiber

被引：9

作者：

Balakin, A. A. ^{[1
,2
]}

Skobelev, S. A. ^{[1
]}

Andrianov, A., V ^{[1
]}

Kalinin, N. A. ^{[1
,2
]}

Litvak, A. G. ^{[1
,2
]}

机构：

[1] RAS, Inst Appl Phys, Nizhnii Novgorod 603950, Russia

[2] Nizhnii Novgorod State Univ, Nizhnii Novgorod 603950, Russia

来源：

OPTICS LETTERS | 2019年 / 44卷 / 20期

基金：

俄罗斯科学基金会;

关键词：

HIGHER-ORDER SOLITON; SYSTEM;

D O I：

10.1364/OL.44.005085

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A mechanism for self-compression of laser pulses in a multicore fiber on the basis of nonlinear combining of radiation from many cores, surrounding the central core in a ring and its trapping into the central core in a chirp-free and pedestal-free soliton-like pulse, is proposed. It is shown that the compression ratio is weakly dependent on the energy and the number of cores in the fiber and approximately equal to 6 with an almost 100% energy efficiency. The compression ratio can be increased to 40 with an efficiency of more than 50% by using additional compression of longer pulses with approximately the same energy. The possibility of a 38-fold compression of a laser pulse to a duration of 15 fs with a pulse energy of 4 nJ in the fiber with realistic parameters was demonstrated numerically. (C) 2019 Optical Society of America

引用

页码：5085 / 5088

页数：4

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