4.6 Article

Power-scalable sub-100-fs Tm laser at 2.08 μm

期刊

出版社

CHINESE LASER PRESS & CAMBRIDGE UNIV PRESS
DOI: 10.1017/hpl.2021.42

关键词

2-mu m mode-locked laser; single-walled carbon nanotubes; Tm: (Lu, Sc)(2)O-3

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资金

  1. National Natural Science Foundation of China (NSFC) [52032009, 61975208, 62075090, 51761135115, 61575199, 61850410533, 52072351]
  2. Deutsche Forschungsgemeinschaft [PE 607/14-1]
  3. Sino-German Scientist Cooperation and Exchanges Mobility Program [M-0040]
  4. Natural Science Foundation of Jiangsu Province [BK20190104]
  5. National Research Foundation of Korea [2020R1A4A2002828]
  6. CAS Key Laboratory of Optoelectronic Materials Chemistry and Physics, FJIRSM CAS [2008DP173016]
  7. Foundation of the President of China Academy of Engineering Physics [YZJJLX2018005]
  8. State Key Laboratory of Crystal Materials (SKLCM), SDU [KF2001]
  9. Alexander von Humboldt Foundation through a Humboldt fellowship

向作者/读者索取更多资源

In this study, a power-scalable sub-100-fs laser in the 2-μm spectral range was achieved using a Tm3+-doped 'mixed' (Lu,Sc)(2)O-3 sesquioxide ceramic as an active medium. By employing single-walled carbon nanotubes as a saturable absorber, pulses as short as 58 fs at 2076 nm with an average output power of 114 mW were generated, representing a new achievement in the field of sub-100-fs mode-locked Tm lasers.
We report on a power-scalable sub-100-fs laser in the 2-mu m spectral range using a Tm3+-doped 'mixed' (Lu,Sc)(2)O-3 sesquioxide ceramic as an active medium. Pulses as short as 58 fs at 2076 nm with an average output power of 114 mW at a pulse repetition rate of approximately 82.9 MHz are generated by employing single-walled carbon nanotubes as a saturable absorber. A higher average power of 350 mW at 2075 nm is obtained at the expense of the pulse duration (65 fs). A maximum average power of 486 mW is achieved for a pulse duration of 98 fs and an optical conversion efficiency of 22.3%, representing the highest value ever reported from sub-100-fs mode-locked Tm lasers.

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