• 文献标题:   On the Q-switched operation of Titanium:Sapphire lasers using a graphene-based saturable absorber mirror
  • 文献类型:   Article
  • 作  者:   WEIGAND R, PINTO T, CRESPO HM, GUERRA JM
  • 作者关键词:   qswitch, ti:s laser, graphenebased saturable absorber
  • 出版物名称:   OPTICS LASER TECHNOLOGY
  • ISSN:   0030-3992 EI 1879-2545
  • 通讯作者地址:   Univ Complutense Madrid
  • 被引频次:   2
  • DOI:   10.1016/j.optlastec.2015.03.007
  • 出版年:   2015

▎ 摘  要

We numerically demonstrate Q-switched operation of Titanium:Sapphire lasers using mono and multilayer graphene, deposited on a totally reflecting end mirror as a saturable absorber. Output energies, pulse duration and repetition frequencies of the Q-switched pulse trains are given as a function of the pump intensity for different number of graphene layers and cavity lengths. For the geometries studied, pulses from 17 to 491 ns can be achieved, with energies ranging from 11 to 74 mu J and repetition rates from 0.06 to 2.5 MHz. These results can be useful for designing and building laser cavities for Q-switched and mode-locked operation in laser media with short lifetimes as Titanium:Sapphire. (C) 2015 Elsevier Ltd. All rights reserved.