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Applied Physics Letters / Volume 99 / Issue 26 / LASERS, OPTICS, AND OPTOELECTRONICS

Appl. Phys. Lett. 99, 261107 (2011); http://dx.doi.org/10.1063/1.3672213 (4 pages)

Performance of large-area few-layer graphene saturable absorber in femtosecond bulk laser

Jin-Long Xu, Xian-Lei Li, Jing-Liang He, Xiao-Peng Hao, Yong-Zhong Wu, Ying Yang, and Ke-Jian Yang

State Key Laboratory of Crystal Materials, Shandong University, Ji’nan 250100, China

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(Received 9 October 2011; accepted 28 November 2011; published online 29 December 2011)

Using large-area graphene sheets of 1-10 layers prepared by the improved liquid phase exfoliation technique, the mode locking operation of a diode-pumped Yb:KGW laser was demonstrated. Near-transform-limited 428 fs pulses were yielded at 1031.1 nm with an output power of 504 mW, corresponding to the slope efficiency of 27% and peak power of 13.8 kW. The output power ratio and the slope efficiency ratio of mode locking to free running were as high as 93% and 100%, respectively. This demonstration may open a proper way to achieve low-cost and efficient femtosecond bulk laser.

© 2011 American Institute of Physics

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KEYWORDS and PACS

Keywords

gadolinium compounds, graphene, high-speed optical techniques, laser beams, laser mode locking, optical pumping, optical saturable absorption, potassium compounds, solid lasers, ytterbium

PACS

  • 42.60.Fc

    Modulation, tuning, and mode locking

  • 42.50.Gy

    Effects of atomic coherence on propagation, absorption, and amplification of light; electromagnetically induced transparency and absorption

  • 42.60.By

    Design of specific laser systems

  • 42.55.Rz

    Doped-insulator lasers and other solid state lasers

  • 42.65.Re

    Ultrafast processes; optical pulse generation and pulse compression

  • 42.60.Jf

    Beam characteristics: profile, intensity, and power; spatial pattern formation

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3672213

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
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    J. M. Dawlaty, S. Shivaraman, M. Chandrashekhar, F. Rana, and M. G. Spencer, Appl. Phys. Lett. 92, 042116 (2008)APPLAB000092000004042116000001.

    Y. W. Song, S. Y. Jang, W. S. Han, and M. K. Bae, Appl. Phys. Lett. 96, 051122 (2010)APPLAB000096000005051122000001.

    W. D. Tan, C. Y. Su, R. J. Knize, G. Q. Xie, L. J. Li, and D. Y. Tang, Appl. Phys. Lett. 96, 031106 (2010)APPLAB000096000003031106000001.

    T. Eberlein, U. Bangert, R. R. Nair, R. Jones, M. Gass, A. L. Bleloch, K. S. Novoselov, A. Geim, and P. R. Briddon, Phys. Rev. B 77, 233406 (2008).


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