High power femtosecond semiconductor lasers based on saw-toothed master-oscillator power-amplifier system with compressed ASE

被引：2

作者：

Wang, Yanjing ^{[1
,2
]}

Zhang, Xin ^{[1
,2
]}

Tong, Cunzhu ^{[1
]}

Wang, Lijie ^{[1
]}

Shu, Shili ^{[1
]}

Tian, Sicong ^{[1
]}

Wang, Lijun ^{[1
]}

机构：

[1] Chinese Acad Sci, State Key Lab Luminescence & Applicat, Changchun Inst Opt Fine Mech & Phys, Changchun 130033, Peoples R China

[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China

来源：

OPTICS EXPRESS | 2020年 / 28卷 / 05期

基金：

中国国家自然科学基金;

关键词：

PEAK-POWER; GENERATION; SUPERCONTINUUM; PULSES;

D O I：

10.1364/OE.385576

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

High power femtosecond semiconductor laser based on saw-toothed taper mode-locked laser and amplifier was demonstrated with compressed amplified spontaneous emission (ASE). The external-cavity mode-locked taper laser generated the clean optical pulses without any sub-pulse components. A semiconductor optical amplifier (SOA) with tilted taper waveguide and saw-toothed edge reduced evidently the ASE background. The saw-tooth microstructures were optimized and it was found that the saw-tooth of right-right angled triangle showed the best effect. The ratio of the maximum intensity to background radiation was increased by 21.9% and the power was increased by 30.5% due to the saw-tooth microstructure in the SOA. The pulse duration of 495 fs and a peak power over 1.5 kW with repetition rate of 579 MHz were realized after a double-pass grating compressor. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：7108 / 7115

页数：8