We present measurements of the linear Stark effect on the 4I15/2→4I13/2 transition in an Er3+-doped proton-exchanged LiNbO3 crystalline waveguide and an Er3+-doped silicate fiber. The measurements were made using spectral hole burning techniques at temperatures below 4 K. We measured an effective Stark coefficient (Δμeχ)/(h)=25±1kHz/Vcm−1 in the crystalline waveguide and (Δμeˉχ)/(h)=15±1kHz/Vcm−1 in the silicate fiber. These results confirm the potential of Erbium doped waveguides for quantum state storage based on controlled reversible inhomogeneous broadening.
@article{arxiv.quant-ph/0603194,
title = {Controlled Stark shifts in Er$^{3+}$-doped crystalline and amorphous waveguides for quantum state storage},
author = {Sara R. Hastings-Simon and Matthias U. Staudt and Mikael Afzelius and Pascal Baldi and Didier Jaccard and Wolfgang Tittel and Nicolas Gisin},
journal= {arXiv preprint arXiv:quant-ph/0603194},
year = {2009}
}