Demonstration of a superluminal laser using electromagnetically induced transparency in Raman gain

Zifan Zhou; Ruoxi Zhu; Yael Sternfeld; Jacob Scheuer; Jason Bonacum; Selim M. Shahriar

doi:10.1364/OE.486083

Demonstration of a superluminal laser using electromagnetically induced transparency in Raman gain

Zifan Zhou^*, Ruoxi Zhu, Yael Sternfeld, Jacob Scheuer, Jason Bonacum, Selim M. Shahriar

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

We report the realization of a superluminal laser in which the dip in the gain profile necessary for anomalous dispersion is produced via electromagnetically induced transparency caused by the optical pumping laser. This laser also creates the ground state population inversion necessary for generating Raman gain. Compared to a conventional Raman laser with similar operating parameters but without the dip in the gain profile, the spectral sensitivity of this approach is explicitly demonstrated to be enhanced by a factor of ∼12.7. Compared to an empty cavity, the peak value of the sensitivity enhancement factor under optimal operation parameters is inferred to be ∼360.

Original language	English
Pages (from-to)	14377-14388
Number of pages	12
Journal	Optics Express
Volume	31
Issue number	9
DOIs	https://doi.org/10.1364/OE.486083
State	Published - 24 Apr 2023

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abstract = "We report the realization of a superluminal laser in which the dip in the gain profile necessary for anomalous dispersion is produced via electromagnetically induced transparency caused by the optical pumping laser. This laser also creates the ground state population inversion necessary for generating Raman gain. Compared to a conventional Raman laser with similar operating parameters but without the dip in the gain profile, the spectral sensitivity of this approach is explicitly demonstrated to be enhanced by a factor of ∼12.7. Compared to an empty cavity, the peak value of the sensitivity enhancement factor under optimal operation parameters is inferred to be ∼360.",

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AU - Zhou, Zifan

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AU - Scheuer, Jacob

AU - Bonacum, Jason

AU - Shahriar, Selim M.

PY - 2023/4/24

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AB - We report the realization of a superluminal laser in which the dip in the gain profile necessary for anomalous dispersion is produced via electromagnetically induced transparency caused by the optical pumping laser. This laser also creates the ground state population inversion necessary for generating Raman gain. Compared to a conventional Raman laser with similar operating parameters but without the dip in the gain profile, the spectral sensitivity of this approach is explicitly demonstrated to be enhanced by a factor of ∼12.7. Compared to an empty cavity, the peak value of the sensitivity enhancement factor under optimal operation parameters is inferred to be ∼360.

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Demonstration of a superluminal laser using electromagnetically induced transparency in Raman gain

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