456-mW graphene Q-switched Yb:yttria waveguide laser by evanescent-field interaction.

نویسندگان

  • Amol Choudhary
  • Stephen J Beecher
  • Shonali Dhingra
  • Brian D'Urso
  • Tina L Parsonage
  • James A Grant-Jacob
  • Ping Hua
  • Jacob I Mackenzie
  • Robert W Eason
  • David P Shepherd
چکیده

In this Letter, we present a passively Q-switched Yb:Y2O3 waveguide laser using evanescent-field interaction with an atmospheric-pressure-chemical-vapor-deposited graphene saturable absorber. The waveguide, pumped by a broad area diode laser, produced an average output power of 456 mW at an absorbed power of 4.1 W. The corresponding pulse energy and peak power were 330 nJ and 2 W, respectively. No graphene damage was observed, demonstrating the suitability of top-deposited graphene for high-power operation.

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عنوان ژورنال:
  • Optics letters

دوره 40 9  شماره 

صفحات  -

تاریخ انتشار 2015