E. Baldit

Ultraslow light propagation in an inhomogeneously broadened rare-earth ion-doped crystal.

We show that coherent population oscillations effect allows us to burn a narrow spectral hole (26 Hz) within the homogeneous absorption line of the optical transition of an erbium ion-doped crystal. The large dispersion of the index of refraction associated with this hole permits us to achieve a group velocity as low as 2.7 m/s with a transmission of 40%. We especially benefit from the inhomogeneous absorption broadening of the ions to tune both the transmission coefficient, from 40% to 90%, and the light group velocity from 2.7 m/s to 100 m/s.

Slow light propagation in a ring erbium-doped fiber

Slow light propagation is demonstrated by implementing Coherent Population Oscillations in a silica fiber doped with erbium ions in a ring surrounding the single mode core. Though only the wings of the mode interact with erbium ions, group velocities around 1360 m/s are obtained without any spatial distortion of the propagating mode.

Ultraslow light propagation in rare-earth ion-doped crystal

Slow light propagation results from the large dispersion of the refraction index. We report on such effect obtained by the coherent population oscillations effect in an Erbium doped crystal. We achieve a group velocity of 2.7 m/s. The inhomogeneous broadening of the transition is used as an additional parameter to control both the group velocity and the transmission.

Identification of LAMBDA-like systems in Er{sup 3+}:Y{sub 2}SiO{sub 5} and observation of electromagnetically induced transparency

Electromagnetically induced transparency (EIT) is reported in a solid-state material doped with erbium ions. In this paper we introduce the spectroscopic investigations we have conducted in order to identify the adequate

Electromagnetically Induced Transparency in rare-earth 167 Er 3+ -doped Y 2 SiO 5 crystal

\ensuremath{\Lambda}

Ultraslow light propagation in an erbium-ions-doped crystal

-like three-level systems in

Hyperfine interaction of Er3+ ions in Y2SiO5 : An electron paramagnetic resonance spectroscopy study

{\text{Er}}^{3+}:{\text{Y}}_{2}{\text{SiO}}_{5}

Identification ofΛ-like systems inEr3+:Y2SiO5and observation of electromagnetically induced transparency

crystal, relevant for the demonstration of EIT. These results pave the way for nonlinear and quantum optics applications based on EIT at the telecom wavelength around

Electron paramagnetic resonance spectroscopy of Er3+:Y2SiO5 for coherent optical applications

1.5\text{ }\ensuremath{\mu}\text{m}

Light propagation in a solid doped with erbium ions: From ultraslow light to the superluminal regime

.