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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 27, Iss. 24 — Dec. 15, 2002
  • pp: 2161–2163

End-pumped, passively Q-switched Yb:YAG double-clad waveguide laser

J. I. Mackenzie and D. P. Shepherd  »View Author Affiliations


Optics Letters, Vol. 27, Issue 24, pp. 2161-2163 (2002)
http://dx.doi.org/10.1364/OL.27.002161


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Abstract

We present a diode-pumped, double-clad Yb:YAG waveguide laser that contains an integrated section of a Cr4+: YAG saturable absorber for passive Q switching. Using two 4-W polarization-coupled, broad-striped diode-pumped lasers, we obtained 30-µJ pulses of 1.6-ns duration at repetition rates of as much as 77 kHz. The slope efficiency was ~50% with respect to absorbed pump power, with a maximum output average power of 2.3 W and a peak power of ~18 kW . The output beam was single lobed, with M2 values as great as 1.5×1.3 . We also demonstrate a passively Q -switched Nd:YAG waveguide laser of similar design, operating at 1.064 µm and 946 nm.

© 2002 Optical Society of America

OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3540) Lasers and laser optics : Lasers, Q-switched
(230.7390) Optical devices : Waveguides, planar

Citation
J. I. Mackenzie and D. P. Shepherd, "End-pumped, passively Q-switched Yb:YAG double-clad waveguide laser," Opt. Lett. 27, 2161-2163 (2002)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-27-24-2161

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