High-power, passively mode-locked Nd:GdVO4 laser using single-walled carbon nanotubes as saturable absorber

被引：59
作者：
Chen, Hou-Ren [1 ,2 ]
Wang, Yong-Gang [3 ]
Tsai, Chih-Ya [1 ,2 ]
Lin, Kuei-Huei [4 ]
Chang, Teng-Yao [1 ,2 ]
Tang, Jau [1 ,2 ,3 ]
Hsieh, Wen-Feng [1 ,2 ,5 ]
机构：
[1] Natl Chiao Tung Univ, Dept Photon, Hsinchu 300, Taiwan
[2] Natl Chiao Tung Univ, Inst Electroopt Engn, Hsinchu 300, Taiwan
[3] Acad Sinica, Res Ctr Appl Sci, Taipei 115296, Taiwan
[4] Taipei Municipal Univ Educ 1, Dept Sci, Taipei 100, Taiwan
[5] Natl Cheng Kung Univ, Inst Electroopt Sci & Engn, Tainan 701, Taiwan
来源：
OPTICS LETTERS | 2011年 / 36卷 / 07期
关键词：
FIBER; LOCKING; ND-GDVO4; PULSE; FILM;
D O I：
10.1364/OL.36.001284
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We use a new (to our knowledge) fabrication method of a single-walled carbon nanotube (SWCNT) absorber without polymer to sustain high-power illumination. Using a series of saturable absorbers (SAs) incorporating different amounts of SWCNTs, we demonstrate mode-locking for a Nd:GdVO4 laser in the 1 mu m spectral range. Continuous-wave mode-locking (CWML) pulses with a maximum output power of 3.6 W at 1063 nm and high noise extinction of 61 dB has been achieved to give the highest pulse peak power of 3.6 kW and pulse energy of 30 nJ under 15 W pumping. To our knowledge, this is the highest CWML output power with SWCNT-SAs reported. The measured nonlinear absorption of the SWCNT-SAs shows a modulation depth of similar to 3% with subpicosecond recovery time. (C) 2011 Optical Society of America
引用
收藏
页码：1284 / 1286
页数：3
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