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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 14 — Jul. 15, 2013
  • pp: 17413–17420

High slope efficiency and high refractive index change in direct-written Yb-doped waveguide lasers with depressed claddings

Guido Palmer, Simon Gross, Alexander Fuerbach, David G. Lancaster, and Michael J. Withford  »View Author Affiliations

Optics Express, Vol. 21, Issue 14, pp. 17413-17420 (2013)

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We report the first Yb:ZBLAN and Yb:IOG10 waveguide lasers fabricated by the fs-laser direct-writing technique. Pulses from a Titanium-Sapphire laser oscillator with 5.1 MHz repetition rate were utilized to generate negative refractive index modifications in both glasses. Multiple modifications were aligned in a depressed cladding geometry to create a waveguide. For Yb:ZBLAN we demonstrate high laser slope efficiency of 84% with a maximum output power of 170 mW. By using Yb:IOG10 a laser performance of 25% slope efficiency and 72 mW output power was achieved and we measured a remarkably high refractive index change exceeding Δn = 2.3 × 10−2.

© 2013 OSA

OCIS Codes
(130.2755) Integrated optics : Glass waveguides
(140.3615) Lasers and laser optics : Lasers, ytterbium

ToC Category:
Integrated Optics

Original Manuscript: May 28, 2013
Revised Manuscript: June 30, 2013
Manuscript Accepted: July 1, 2013
Published: July 12, 2013

Guido Palmer, Simon Gross, Alexander Fuerbach, David G. Lancaster, and Michael J. Withford, "High slope efficiency and high refractive index change in direct-written Yb-doped waveguide lasers with depressed claddings," Opt. Express 21, 17413-17420 (2013)

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