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An ultrastable silicon cavity in a continuously operating closed-cycle cryostat at 4 K by Zhang, W.; Robinson, J. M.; Sonderhouse, L.; Oelker, E.; Benko, C.; Hall, J. L.; Legero, T.; Matei, D. G.; Riehle, F.; Sterr, U.; Ye, J. is a scholarly article available to read on EtoBox.

What is An ultrastable silicon cavity in a continuously operating closed-cycle cryostat at 4 K about?

We report on a laser locked to a silicon cavity operating continuously at 4 K with $1 \times 10^{-16}$ instability and a median linewidth of 17 mHz at 1542 nm. This is a ten-fold improvement in short-term instability, and a $10^4$ improvement in linewidth, over previous sub-10 K systems. Operating at low temperatures reduces the thermal noise floor, and thus is advantageous toward reaching an instability of $10^{-18}$, a long-sought goal of the optical clock community. The performance of this system demonstrates the technical readiness for the development of the next generation of ultrastable lasers that operate with ultranarrow linewidth and long-term stability without user intervention.

Author

Zhang, W.; Robinson, J. M.; Sonderhouse, L.; Oelker, E.; Benko, C.; Hall, J. L.; Legero, T.; Matei, D. G.; Riehle, F.; Sterr, U.; Ye, J.

Published

2017

Language

EN