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
收藏
页码：7108 / 7115
页数：8
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