Mid-Infrared Q-Switched and Mode-Locked Fiber Lasers at 2.87 μm Based on Carbon Nanotube

被引：14
|
作者：
We, Chen [1 ]
Lyu, Yanjia [1 ]
Shi, Hongxia [1 ]
Kang, Zhe [2 ]
Zhang, Han [3 ]
Qin, Guanshi [4 ]
Liu, Yong [1 ]
机构：
[1] Univ Elect Sci & Technol China, State Key Lab Elect Thin Films & Integrated Devic, Sch Optoelect Sci & Engn, Chengdu 610054, Sichuan, Peoples R China
[2] Chinese Acad Sci, Changchun Observ, Natl Astron Observ, Changchun 130012, Jilin, Peoples R China
[3] Sichuan Univ, Coll Elect Engn & Informat Technol, Chengdu 610054, Sichuan, Peoples R China
[4] Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, Changchun 130012, Jilin, Peoples R China
来源：
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS | 2019年 / 25卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Mid-infrared fiber lasers; carbon nanotubes; mode-locked lasers; Q-switched lasers; optical pulses; SATURABLE ABSORPTION MATERIAL; PULSE-GENERATION; BLACK PHOSPHORUS; ABSORBER; FE2+ZNSE; LOCKING;
D O I：
10.1109/JSTQE.2019.2899015
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 Q-switching and mode-locking operations in a Ho3+/Pr3+ co-doped ZBLAN fiber laser at 3-mu m mid-infrared waveband using a single-walled carbon nanotuhe saturable absorber (SWCNT-SA). The SWCNTs were produced by catalytic chemical vapor deposition method and then deposited on the surface of a flat gold-coated mirror to form the SWCNT-SA. The modulation depth and saturation intensity of the SWCNT-SA are 16.5% and 1.66 MW/cm(2) , respectively. Stable Q-switched laser pulses operating at 2865.6 nm were obtained at a launched pump power of 530.6 mW. The resulting pulses have a measured repetition rate and pulse width of 178.6 kHz and 1.21 mu s, respectively. The maximum pulse energy is calculated to he 036 mu J. By slightly adjusting the position of the SWCNT-SA, stable continuous-wave mode-locked pulses at 2865.2 nm were also achieved. Our work demonstrates that SWCNTs are promising SAs for 3-mu m midin-frared pulsed lasers.
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页数：6
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