Experimental observation of spectral diffusion in an optically pumped crystal

Crozatier, V.; Gorju, G.; Bretenaker, Fabien; Gouët, J.-L. Le; Lorgeré, I.; Guillot-Noël, O.; Goldner, Ph.

doi:10.1016/j.jlumin.2007.02.010

Cited by 5 publications

(4 citation statements)

References 14 publications

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“…Due to the inhomogeneity of the external magnetic field the bandwidth, i.e. the size of the sweep, had to be chosen high (10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20). The required central frequency corresponds to ∆ e in figure 1 and could be extracted from a hole-burning spectrum.…”

Section: Processmentioning

confidence: 99%

“…The spectroscopic properties of Er 3+ :Y 2 SiO 5 have been extensively studied, including optical coherence [15,18,19], spectral diffusion [19,20], hyperfine structure [21], Zeeman relaxation lifetimes [17], Zeeman g factors [22] and erbium-host interactions [23]. Slow light has also been achieved in this material using coherent population oscillation [24].…”

Section: Introductionmentioning

confidence: 99%

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State preparation by optical pumping in erbium-doped solids using stimulated emission and spin mixing

et al. 2008

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Erbium-doped solids are potential candidates for the realization of a quantum memory for photons at telecommunication wavelengths. The implementation of quantum memory proposals in rare-earth-ion-doped solids require spectral tailoring of the inhomogeneous absorption profile by efficient population transfer between ground-state levels (spin polarization) using optical pumping. In this paper we investigate the limiting factors of efficient optical pumping between ground-state Zeeman levels in an erbium-doped Y2SiO5 crystal. We introduce two methods to overcome these limiting factors: stimulated emission using a second laser and spin mixing using radio frequency excitation. Both methods significantly improve the degree of spin polarization. Population transfer between two Zeeman levels with less than 10% of the total population in the initial ground state is achieved, corresponding to a spin polarization greater than 90%. In addition, we demonstrate spectral tailoring by isolating a narrow absorption peak within a large transparency window

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Section: Processmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

State preparation by optical pumping in erbium-doped solids using stimulated emission and spin mixing

et al. 2008

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“…The ion-ion interaction is usually considered, for many applications, to degrade the performance of a system, since the frequency-shifted ions acquire different phases over time and thus decohere. This is commonly referred as instantaneous spectral diffusion [9][10][11][12]. As a result of the interactions, a phase that is known as intrinsic op-tical bistability [13] was first identified in rare-earth ion ensembles [14][15][16] and recently observed in Ryberg atoms [17].…”

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confidence: 99%

Optically Unstable Phase from Ion-Ion Interactions in an Erbium-Doped Crystal

et al. 2021

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“…Such a quantum memory at telecommunication wavelength would be useful in the context of quantum repeaters [28,29,30]. The spectroscopic properties of Er 3+ :Y 2 SiO 5 have been extensively studied, including optical coherence [31,32,33,34], spectral diffusion [32,35], hyperfine structure [36], Zeeman relaxation lifetimes [37], Zeeman g factors [38], and erbium host interactions [39]. Slow light has also been achieved in this material using coherent population oscillation [40].…”

Section: Introductionmentioning

confidence: 99%

Electric control of collective atomic coherence in an erbium-doped solid

Minář¹,

Lauritzen²,

Riedmatten³

et al. 2009

New J. Phys.

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View the article online for updates and enhancements. Abstract. We demonstrate the fast and accurate control of the evolution of collective atomic coherences in an erbium-doped solid using external electric fields. This is achieved by controlling the inhomogeneous broadening of erbium ions emitting at 1536 nm using an electric field gradient, thanks to the linear Stark effect. The manipulation of atomic coherence is characterized with the collective spontaneous emission (optical free induction decay (FID)) emitted by the sample after an optical excitation, which does not require any previous preparation of the atoms. We show that controlled dephasing and rephasing of the atoms by the electric field result in collapses and revivals of the optical FID. Our results show that the use of external electric fields does not introduce any substantial decoherence and enables the manipulation of collective atomic coherence with a very high degree of precision on the timescale of tens of nanoseconds. This provides an interesting resource for photonic quantum state storage and quantum state manipulation. Contents

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Experimental observation of spectral diffusion in an optically pumped crystal

Cited by 5 publications

References 14 publications

State preparation by optical pumping in erbium-doped solids using stimulated emission and spin mixing

State preparation by optical pumping in erbium-doped solids using stimulated emission and spin mixing

Optically Unstable Phase from Ion-Ion Interactions in an Erbium-Doped Crystal

Electric control of collective atomic coherence in an erbium-doped solid

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