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

Appl. Phys. Lett. 99, 261109 (2011); http://dx.doi.org/10.1063/1.3672418 (3 pages)

Low-loss flake-graphene saturable absorber mirror for laser mode-locking at sub-200-fs pulse duration

B. V. Cunning1, C. L. Brown1, and D. Kielpinski2

1Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan QLD 4111, Australia
2Centre for Quantum Dynamics, Griffith University, Nathan QLD 4111, Australia

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(Received 4 November 2011; accepted 5 December 2011; published online 29 December 2011)

Saturable absorbers are a key component for mode-locking femtosecond lasers. Polymer films containing graphene flakes have recently been used in transmission as laser mode-lockers but suffer from high nonsaturable loss, limiting their application in low-gain lasers. Here, we present a saturable absorber mirror based on a film of pure graphene flakes. The device is used to mode lock an erbium-doped fiber laser, generating pulses with state-of-the-art, sub-200-fs duration. The laser characteristic indicates that the film exhibits low nonsaturable loss (13% per pass) and large absorption modulation depth (45% of low-power absorption).

© 2011 American Institute of Physics

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KEYWORDS and PACS

Keywords

erbium, fibre lasers, graphene, laser mirrors, laser mode locking, optical films, optical losses, optical modulation, optical pulse generation, optical saturable absorption

PACS

  • 42.60.Fc

    Modulation, tuning, and mode locking

  • 42.79.Bh

    Lenses, prisms and mirrors

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3672418

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.
    A. Martinez, K. Fuse, and S. Yamashita, Appl. Phys. Lett. 99, 121107 (2011)APPLAB000099000012121107000001.

    H. Zhang, Q. Bao, D. Tang, L. Zhao, and K. Loh, Appl. Phys. Lett. 95, 141103 (2009)APPLAB000095000014141103000001.

    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.

    D. Popa, Z. Sun, F. Torrisi, T. Hasan, F. Wang, and A. C. Ferrari, Appl. Phys. Lett. 97, 203106 (2010)APPLAB000097000020203106000001.


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