Femtosecond laser micromachined ridge waveguide lasers in Nd:YAG ceramics

•First Nd:YAG ceramic ridge waveguides by ion implantation and femtosecond laser ablation.•Enhancement of lasing performance in Nd:YAG ceramic ridge waveguides to planar ones.•Presentation of a new method to form ridge waveguides in laser ceramics. We report on the fabrication of ridge waveguides in...

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Bibliographic Details
Published in:Optical materials 2013-12, Vol.36 (2), p.228-231
Main Authors: Jia, Yuechen, Vázquez de Aldana, Javier R., Akhmadaliev, Shavkat, Zhou, Shengqiang, Chen, Feng
Format: Article
Language:English
Subjects:
Ceramics
Exact sciences and technology
Femtosecond
Femtosecond laser micromachining
Fundamental areas of phenomenology (including applications)
Lasers
Lasing
Micromachining
Nd:YAG ceramic
Optical elements, devices, and systems
Optical waveguides
Optical waveguides and coupleurs
Optics
Physics
Planar waveguides
Ridges
Waveguides
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Summary:•First Nd:YAG ceramic ridge waveguides by ion implantation and femtosecond laser ablation.•Enhancement of lasing performance in Nd:YAG ceramic ridge waveguides to planar ones.•Presentation of a new method to form ridge waveguides in laser ceramics. We report on the fabrication of ridge waveguides in Nd:YAG ceramic by using femtosecond laser micromachining of the surface of a He ion implanted planar waveguide. Under optical pump of 808nm light, continuous wave waveguide lasers have been realized at 1.06μm at room temperature in the Nd:YAG ceramic ridge waveguide system, reaching a maximum output power of 46mW. The lasing threshold of ∼64.9mW and the slope efficiency of 42.5% are obtained for the ridge waveguide system, which shows superior lasing performance to the Nd:YAG ceramic planar waveguide.
ISSN:0925-3467
1873-1252
DOI:10.1016/j.optmat.2013.08.031