Hybrid single longitudinal mode Yb:YAG waveguide laser with 16 W output power

Hybrid single longitudinal mode Yb:YAG waveguide laser with 16 W output power

We present highly efficient high power single longitudinal mode waveguide lasers. Single mode operation was achieved by combining a tapered waveguide Bragg grating with a Yb:YAG crystalline waveguide laser in a hybrid approach. Both structures were fabricated by fs-laser writing. We achieved 1.59 W...

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Veröffentlicht in:Optical materials express 2017-08, Vol.7 (8), p.2777
Hauptverfasser: Calmano, Thomas, Ams, Martin, Dekker, Peter, Withford, Michael J., Kränkel, Christian
Format: Artikel
Sprache:eng
Schlagworte:
Lasers
Single mode operation
Waveguide lasers
YAG lasers
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Zusammenfassung:We present highly efficient high power single longitudinal mode waveguide lasers. Single mode operation was achieved by combining a tapered waveguide Bragg grating with a Yb:YAG crystalline waveguide laser in a hybrid approach. Both structures were fabricated by fs-laser writing. We achieved 1.59 W of output power in a single longitudinal mode and 4.71 W of output power with a spectral bandwidth of 38 pm. The slope efficiency was 66% and the laser threshold 92 mW.
ISSN:2159-3930
2159-3930
DOI:10.1364/OME.7.002777