Publications

DBR Lasers at 679.29 and 707.20 nm for Efficient Repumping in Sr Optical Lattice Clocks

N. Goossen-Schmidt1, B. Arar1,2, J. Fricke1, K. Häusler1, A. Maaßdorf1, M. Schiemangk1, S. Szermer1, H. Wenzel1, and A. Wicht1

Published in:

IEEE Photonics Technol. Lett., vol. 37, no. 20, pp. 1205-1208, doi:10.1109/LPT.2025.3591153 (2025).

Abstract:

We have developed and characterized DBR lasers emitting at 679 nm and 707 nm, specifically tailored to excite the repumping wavelengths in Sr optical lattice clocks. They achieve a FWHM linewidth of about 1 MHz at optical output powers of more than 65 mW.

1 Ferdinand-Braun-Institut, 12489 Berlin, Germany
2 Quantum Communication Networks Group, Deutsche Telekom Chair of Communication Networks, TU Dresden, 01062 Dresden, Germany

Index Terms:

DBR lasers, Sr optical lattice clocks, 679 nm, 707 nm

© 2025 The Authors. This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see https://creativecommons.org/licenses/by/4.0/

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