Yb:KYW planar waveguide laser Q-switched by evanescent-field interaction with carbon nanotubes

被引：35
|
作者：
Kim, Jun Wan [1 ,2 ]
Choi, Sun Young [1 ,2 ]
Yeom, Dong-Il [1 ,2 ]
Aravazhi, Shanmugam [3 ]
Pollnau, Markus [3 ]
Griebner, Uwe [4 ]
Petrov, Valentin [4 ]
Rotermund, Fabian [1 ,2 ]
机构：
[1] Ajou Univ, Dept Phys, Suwon 443749, South Korea
[2] Ajou Univ, Div Energy Syst Res, Suwon 443749, South Korea
[3] Univ Twente, MESA, Inst Nanotechnol, Integrated Opt Micro Syst Grp, NL-7500 AE Enschede, Netherlands
[4] Max Born Inst Nonlinear Opt & ShortPulse Spect, D-12489 Berlin, Germany
来源：
OPTICS LETTERS | 2013年 / 38卷 / 23期
基金：
新加坡国家研究基金会;
关键词：
SATURABLE-ABSORBER; MODE-LOCKING; MU-M; BULK; OPTIMIZATION; CRYSTAL; COMPACT; POWER;
D O I：
10.1364/OL.38.005090
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report Q-switched operation of a planar waveguide laser by evanescent-field interaction with single-walled carbon nanotubes deposited on top of the waveguide. The saturable-absorber-integrated gain medium, which operates based on evanescent-field interaction, enables the realization of a diode-pumped 2.5-cm-long Q-switched Yb:KYW waveguide laser emitting at 1030 nm. With such a compact cavity design, we achieve maximum output powers of up to 30 mW, corresponding to a single-pulse energy of 124 nJ, at 241 kHz repetition rate. The shortest pulse duration of 433 ns is generated at a repetition rate of 231 kHz. (C) 2013 Optical Society of America
引用
收藏
页码：5090 / 5093
页数：4
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