期刊
JOURNAL OF OPTICS
卷 19, 期 4, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/2040-8986/aa60e0
关键词
Nd:YAG; eye-safe lasers; carbon nanotube; dual-wavelength laser; Q-switching
类别
资金
- National Natural Science Foundation of China [61575164]
- Specialized Research Fund for the Doctoral Program of Higher Education [20130121120043]
- Natural Science Foundation of Fujian Province of China [2014J01251]
We report new results concerning 1.4 mu m eye-safe laser sources based on a conventional Nd:YAG crystal. In free-running laser mode, we obtain the highest output power of 4.64W at 1413 nm with slope efficiency of about 23.1%. With the aid of an etalon, we achieve a simultaneous dual-wavelength laser at 1413 and 1443 nm with maximum output power of 3.18W and slope efficiency of about 16.7%. In addition, a single wavelength laser at 1431 nm is also yielded with maximum output power of 1.96W and slope efficiency of about 11.8%. The dual-wavelength laser and single-wavelength laser (1431 nm) are believed to be the first demonstrations from diode-pumped Nd:YAG crystal. Using a single-wall carbon nanotube as the saturable absorber, we achieve dual-wavelength Q-switched laser operation at 1413 and 1443 nm with the narrowest pulse width of about 0.49 mu s, for the first time to our knowledge.
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