Diode-pumped ultrafast Yb: KGW laser with 56 fs pulses and multi-100 kW peak power based on SESAM and Kerr-lens mode locking

被引：84

作者：

Akbari, R. ^{[1
]}

Fedorova, K. A. ^{[2
]}

Rafailov, E. U. ^{[2
]}

Major, A. ^{[1
]}

机构：

[1] Univ Manitoba, Dept Elect & Comp Engn, Winnipeg, MB R3T 5V6, Canada

[2] Aston Univ, Optoelect & Biomed Photon Grp, Sch Engn & Appl Sci, Birmingham B4 7ET, W Midlands, England

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2017年 / 123卷 / 04期

基金：

加拿大自然科学与工程研究理事会;

关键词：

OPTICAL PARAMETRIC OSCILLATION; DOT SATURABLE ABSORBER; YBKGW LASER; DISPERSION; CRYSTALS;

D O I：

10.1007/s00340-017-6701-3

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A high-power sub-60 fs mode-locked diodepumped Yb: KGW laser based on hybrid action of an InGaAs quantum-dot saturable absorber mirror and Kerrlens mode locking was demonstrated. The laser delivered 56 fs pulses with 1.95 W of average power corresponding to 450 kW of peak power. The width of the generated laser spectrum was 20.5 nm, which was near the gain bandwidth limit of the Yb: KGW crystal. To the best of our knowledge, these are the shortest pulses generated from the monoclinic double tungstate crystals (and Yb: KGW laser crystal in particular) and the most powerful in the sub-60 fs regime. At the same time, they are also the shortest pulses produced to date with the help of a quantum-dot-based saturable absorber. High-power operation with a pulse duration of 90 fs and 2.85 W of average output power was also demonstrated.

引用

页数：6

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