Soliton Mode-Locked Large-Mode-Area Tm-Doped Fiber Oscillator

被引：8
|
作者：
Zhu, Zexiu [1 ]
Zhang, Hui [2 ]
Wang, Mengmeng [1 ]
Wei, Rongling [1 ]
Zheng, Zhijian [1 ]
Yan, Peiguang [1 ]
Ruan, Shuangchen [1 ]
Wang, Jinzhang [1 ]
Hasan, Tawfique [3 ]
Sun, Zhipei [4 ,5 ]
机构：
[1] Shenzhen Univ, Coll Optoelect Engn, Shenzhen Key Lab Laser Engn, Shenzhen 518060, Peoples R China
[2] Chinese Acad Sci, Shenzhen Hosp Univ, Cent Lab, Shenzhen 518106, Peoples R China
[3] Univ Cambridge, Cambridge Graphene Ctr, Cambridge CB3 0FA, England
[4] Aalto Univ, Dept Elect & Nanoengn, FI-00076 Aalto, Finland
[5] Aalto Univ, QTF Ctr Excellence, Dept Appl Phys, FI-00076 Aalto, Finland
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2020年 / 32卷 / 02期
基金：
中国博士后科学基金; 芬兰科学院; 中国国家自然科学基金;
关键词：
Ultrafast fiber laser; mode-locked; large-mode-area (LMA) fiber; soliton; nonlinear polarization evolution (NPE); PULSE ENERGY; FS PULSES; LASER; GENERATION; LOCKING; NOISE;
D O I：
10.1109/LPT.2019.2959793
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We report a passively mode-locked fiber oscillator based on thulium-doped large-mode-area (LMA) fiber. Reliably mode-locking soliton operation can be readily achieved after the suppression of the higher-order modes by using mode field adapters in combination with coiling fiber method. The laser delivers 600-fs level pulses at 2 mu m with an average power of up to 243 mW and a repetition rate of similar to 53.7 MHz. The output corresponds to a maximum pulse energy of 4.5 nJ, >5 times larger than that of a similar homemade mode-locked Tm laser with the LMA fibers replaced by single mode fibers, coinciding with theoretical prediction. The successful demonstration of our soliton mode-locked LMA fiber laser at 2 mu m offers another strategy for high performance ultrafast fiber sources at mid-infrared region.
引用
收藏
页码：117 / 120
页数：4
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