Single-mode distributed feedback lasers for 87Rb two-photon quantum technology systems

Di Gaetano, Eugenio and Griffin, Paul and Keliehor, Brendan and Sorel, Marc and Riis, Erling and Paul, Douglas J. (2022) Single-mode distributed feedback lasers for 87Rb two-photon quantum technology systems. 2022 IEEE Photonics Conference (IPC). (https://doi.org/10.1109/ipc53466.2022.9975651)

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Abstract

Distributed feedback (DFB) lasers have been demonstrated at 778.1 nm wavelength with 48 mW output power, 20.5° vertical divergence, −150 dBc/Hz relative intensity noise (RIN), and linewidth of 3.67 kHz. Such devices were employed to successfully resolve the 87 Rb two-photon hyperfine levels in free-running conditions.