Efficient Nd:Ti:LiNbO3 ridge waveguide lasers emitting around 1085 nm

In this work, we report on efficient neodymium-doped titanium in-diffused ridge waveguide lasers in x-cut congruent LiNbO3 under excitation at 814 mn. For the sample fabrication we used our novel technique of three-side evaporation and in-diffusion for Nd and Ti incorporation into pre-defined ridges. Due to improved photorefractive damage resistance by indium tin oxide (ITO) coating we achieved stable laser operation at 1084.7 mn with a maximum output power of 108 mW and a slope efficiency of 34% exceeding the best literature values for Nd:Ti:LiNbO3 ridge waveguide lasers. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement.