4.6 Article

Q-switched operation of a pulsed-laser-deposited Yb:Y2O3 waveguide using graphene as a saturable absorber

Journal

OPTICS LETTERS
Volume 39, Issue 15, Pages 4325-4328

Publisher

OPTICAL SOC AMER
DOI: 10.1364/OL.39.004325

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Funding

  1. UK Engineering and Physical Sciences Research Council (EPSRC) [EP/J008052/1, EP/L021390]
  2. Engineering and Physical Sciences Research Council [1239349, EP/L021390/1, EP/H035745/1, EP/J008052/1] Funding Source: researchfish
  3. EPSRC [EP/H035745/1, EP/L021390/1, EP/J008052/1] Funding Source: UKRI

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The first, to the best of our knowledge, Q-switched operation of a pulsed-laser-deposited waveguide laser is presented. A clad Yb:Y2O3 waveguide was Q-switched using an output coupling mirror coated with a single layer of graphene deposited by atmospheric pressure chemical vapor deposition. During continuous-wave operation, a maximum power of 83 mW at a slope efficiency of 25% was obtained. During Q-switched operation, pulses as short as 98 ns were obtained at a repetition rate of 1.04 MHz and a central wavelength of 1030.8 nm. (C) 2014 Optical Society of America

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