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

Source: Appl. Phys. Lett. 99, 261107 (2012); http://dx.doi.org/10.1063/1.3672213

Published 29 December 2011

KEYWORDS and PACS
Keywords
PACS
  • 42.60.Fc
    Laser beam modulation, tuning, and mode locking
  • 42.50.Gy
    Effects of atomic coherence on propagation, absorption, and amplification of light
  • 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
    Laser beam characteristics
  • YEAR: 2011
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PUBLICATION DATA
ISSN:
1553-9601 (online)
Publisher:
AIP is a member of CrossRef AIP
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
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
History: Received 9 October 2011; accepted 28 November 2011; published 29 December 2011
Digital Object Identifier: http://dx.doi.org/10.1063/1.3672213

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