Continuous wave ridge waveguide lasers in femtosecond laser micromachined ion irradiated Nd:YAG single crystals

Yuechen Jia, Ningning Dong, Feng Chen, Javier R. Vázquez de Aldana, Shavkat Akhmadaliev, Shengqiang Zhou
2012 Optical Materials Express  
Ridge waveguides have been fabricated in Nd:YAG single crystal by using femtosecond laser micromachining in an oxygen ion irradiated planar waveguide. The microphotoluminescence features have been found well preserved in the waveguide structures. Continuous wave lasers have been realized at 1.06 µm at room temperature in the ridge waveguide system with a lasing threshold of ~39 mW and a slope efficiency of 35%, which show superior performance to the planar waveguide.
doi:10.1364/ome.2.000657 fatcat:4vlpqmtflbchre2mxxkp5wu5ge