H + implanted channel waveguides in buried epitaxial crystalline YAG:Nd,Tm layers and infrared-to-blue upconversion characterization

Abstract

Nd,Tm:YAG codoped single crystal waveguides were studied in order to discover if the presence of Nd3+ ions favors blue luminescence at 486 nm. Innovative implantation techniques were applied to locally change Δn and form varied H+ implanted channel structures in Nd,Tm:YAG buried epitaxial waveguiding layers. The guided blue luminescence due to the Tm3+ G14→H36 transition was studied under infrared excitation at 785 nm (Tm3+ absorption) and 808 nm (Nd3+ absorption) for the epitaxial planar waveguides of different Tm3+ and Nd3+ concentrations for all the implanted channel waveguide structures.

Optical Waveguides Fabricated by Ion Implantation/Irradiation: A Review Optical Waveguides Fabricated by Ion Implantation/Irradiation: A Review

“…They characterized optically these waveguides, finding typical optical barrier profiles, good laser emission characteristics at 1064 nm and high stability in the continuous-wave regime. The same ion was used by Szachowicz et al (Szachowicz et al, 2008) to study if the presence of Nd 3+ ions favors blue luminescence at 486 nm on Nd,Tm:YAG codoped single crystal waveguides. For this, they fabricated channel waveguides by multiple implantation of H + , using various irradiation angles and doses.…”