Title :
Neodymium and gadolinium diffusion in yttrium vanadate
Author :
Hettrick, S.J. ; Wilkinson, J.S. ; Shepherd, D.P.
Author_Institution :
Optoelectron. Res. Centre, Southampton Univ., UK
Abstract :
Lasers based on planar waveguides have recently generated interest for use as scalable high-average-power sources, Here we study the thermal diffusion of Nd3+ and Gd3+ ions in YVO4 in order to obtain the essential diffusion characteristics necessary to calculate the conditions required for fabrication of waveguides suitable for laser action at 1 μm. Nd 3+ is studied both for localised doping as the active laser ion and as a potential refractive index modifier. We also choose to study Gd3+ diffusion as an index modifier in order to give the potential for separate control of the index and gain distributions
Keywords :
gadolinium; laser modes; neodymium; optical planar waveguides; optical pumping; solid lasers; thermal diffusion; waveguide lasers; yttrium compounds; 1 micron; Nd3+,Gd3+:YVO4 lasers; YVO4:Gd,Nd; active laser ion; diffusion; essential diffusion characteristics; gain distributions; good thermal-power handling; high-average-power sources; index distributions; index modifier; laser action; planar waveguide lasers; potential refractive index modifier; thermal diffusion; Diodes; Doping; Neodymium; Optical waveguides; Planar waveguides; Substrates; Surface resistance; Thermal resistance; Waveguide lasers; Yttrium;
Conference_Titel :
Lasers and Electro-Optics Society, 2001. LEOS 2001. The 14th Annual Meeting of the IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-7105-4
DOI :
10.1109/LEOS.2001.969204
