High-power supercontinuum generation in the mid-infrared pumped by a soliton self-frequency shifted source

被引：31

作者：

Robichaud, Louis-Rafael ^{[1
]}

Duval, Simon ^{[1
]}

Pleau, Louis-Philippe ^{[1
]}

Fortin, Vincent ^{[1
]}

Bah, Souleymane Toubou ^{[1
]}

Chatigny, Stephane ^{[2
]}

Vallee, Real ^{[1
]}

Bernier, Martin ^{[1
]}

机构：

[1] Univ Laval, COPL, Laval, PQ G1V 0A6, Canada

[2] CorAct High Tech Inc, Quebec City, PQ G2C 1S9, Canada

来源：

OPTICS EXPRESS | 2020年 / 28卷 / 01期

基金：

加拿大创新基金会; 加拿大自然科学与工程研究理事会;

关键词：

MU-M; REFRACTIVE-INDEX; LASER SOURCE; FIBER; FLUORIDE;

D O I：

10.1364/OE.380737

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report the demonstration of a fiber-based supercontinuum source delivering up to 825 mW of average output power between 2.5 and 5.0 mu m generated in all-normal dispersion regime. The pumping source consists of an amplified ultrafast Er-3(+):ZrF4 fiber laser providing high peak power femtosecond pulses at 3.6 mu m with an average output power exceeding the watt-level. These pulses are spectrally broadened through self-phase modulation using commercial chalcogenide-based step-index fibers. Al2O3 anti-reflection coatings were sputtered on chalcogenide fiber tips to increase the launching efficiency from 54% to 82%, making this record output power possible, and thus confirming that such coatings can support watt-level pumping with intense femtosecond pulses. To the best of our knowledge, this result represents the highest average output power ever achieved from a As2Se3-based mid-112 supercontinuum source with the potential of a high degree of coherence. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：107 / 115

页数：9

共 32 条

[1] Two octaves mid-infrared supercontinuum generation in As2Se3 microwires [J].