Ridge waveguide laser in Nd:LiNbO3 by Zn-diffusion and femtosecond-laser structuring
Abstract
4 págs,; 5 figs. ; Ridge waveguide lasers have been fabricated on Nd doped LiNbO crystals. The fs-laser writing technique was used to define ridge structures on a gradient-index planar waveguide fabricated by Zn-diffusion. This planar waveguide was formed in a z-cut LiNbO substrate homogeneously doped with a 0.23% of Nd ions. To obtain lateral light confinement, the surface was then micromachined using a multiplexed femtosecond laser writing beam, forming the ridge structures. By butting two mirrors at the channel waveguide end-facets, forming a waveguide laser cavity, TM-polarized laser action at 1085 nm was achieved by end-fire TM-pumping at 815 nm. The waveguide laser shows a threshold of 31 mW, with a 7% of slope efficiency. © 2016 Elsevier B.V. All rights reserved ; This work was supported by the Spanish Government under projects TEC2014-52642-C2-1-R and MAT2013-47395-C4. ; Peer Reviewed
Citations
We have found one citation for you at OpenAlex.
We have found citations for you at OpenAlex.
References
We have found one reference for you at OpenAlex.
We have found references for you at OpenAlex.
Report Issue