16 March 2016 Yb:YAG planar waveguide lasers grown by pulsed laser deposition: 70% slope efficiencies at 16 W of output power
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Abstract
We present our recent advances in the use of pulsed laser deposition (PLD) to fabricate active gain elements for use as amplifiers and laser oscillators. Record output powers exceeding 16 W and slope efficiencies of 70% are reported for optimized epitaxial growth of Yb(7.5%):YAG on to YAG substrates. We show for the first time that the performance of PLD material can meet or even exceed that of materials grown by more established methods such as the Czochralski technique. Details of fabrication, characterization and laser performance are presented in addition to outlining expected future improvements.
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Stephen J. Beecher, James A. Grant-Jacob, Tina L. Parsonage, Ping Hua, Jacob I. Mackenzie, Dave P. Shepherd, Robert W. Eason, "Yb:YAG planar waveguide lasers grown by pulsed laser deposition: 70% slope efficiencies at 16 W of output power", Proc. SPIE 9726, Solid State Lasers XXV: Technology and Devices, 97261Z (16 March 2016); doi: 10.1117/12.2220388; https://doi.org/10.1117/12.2220388
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