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Controlled Stark shifts in Er$^{3+}$-doped crystalline and amorphous waveguides for quantum state storage

Sara R. Hastings-Simon·Matthias U. Staudt·Mikael Afzelius·Pascal Baldi·Didier Jaccard·Wolfgang Tittel·Nicolas Gisin
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Abstract

We present measurements of the linear Stark effect on the $^{4}$I$_{15/2} \to$ $^{4}$I$_{13/2}$ transition in an Er$^{3+}$-doped proton-exchanged LiNbO$_{3}$ crystalline waveguide and an Er$^{3+}$-doped silicate fiber. The measurements were made using spectral hole burning techniques at temperatures below 4 K. We measured an effective Stark coefficient $(Δμ_{e}χ)/(h)=25\pm1$kHz/Vcm$^{-1}$ in the crystalline waveguide and $(\bar{Δμ_{e}}χ)/(h)=15\pm1$kHz/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.

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Sara R. Hastings-Simon, Matthias U. Staudt, Mikael Afzelius, Pascal Baldi, Didier Jaccard, Wolfgang Tittel, Nicolas Gisin. 2006-03-29. Controlled Stark shifts in Er$^{3+}$-doped crystalline and amorphous waveguides for quantum state storage. https://doi.org/10.1016/j.optcom.2006.05.003

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