Hybrid single longitudinal mode Yb: YAG waveguide laser with 1.6 W output power

Thomas Calmano, Martin Ams, Peter Dekker, Michael J. Withford, Christian Kränkel

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)2777-2782
Number of pages6
JournalOptical Materials Express
Volume7
Issue number8
DOIs
Publication statusPublished - 2017

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