By Topic

Exploring Waveguiding Properties of Heavily Doped  \hbox {Yb}^{3+}:\hbox {KLu}(\hbox {WO}_{4})_{2} Epitaxial Layers

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

The purchase and pricing options are temporarily unavailable. Please try again later.
5 Author(s)
Western Bolaños ; Física i Cristal lografía de Materials i Nanomaterials (FiCMA-FiCNA), Universitat Rovira i Virgili (URV), Tarragona, Spain ; Joan J. Carvajal ; Xavier Mateos ; Magdalena Aguiló
more authors

High-quality epitaxial layers of heavily doped Yb:KLu( WO4)2 grown on KLu(WO4)2 substrates by liquid phase epitaxy were characterized in terms of lattice mismatch and refractive indexes of the layer and the substrate. The effective refractive indexes of the guided modes that these structures can support were modeled and measured experimentally for the transverse electric (TE) and transverse magnetic (TM) mode excitation by dark m-lines spectroscopy. The upper limit for optical losses in these waveguides corresponding only to scattering processes was estimated to be ~1.5 dB/cm at λ=632.8 nm. These results show that, apart for highly efficient thin-disk laser applications, these epilayers can be used as waveguide devices at wavelengths different from those used to excite Yb3+.

Published in:

IEEE Photonics Journal  (Volume:2 ,  Issue: 3 )