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arXiv · 1801.05026

Thermal noise limited higher-order mode locking of a reference cavity

X. Y. Zeng·Y. X. Ye·X. H. Shi·Z. Y. Wang·K. Deng·J. Zhang·Z. H. Lu
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Abstract

Higher-order mode locking has been proposed to reduce the thermal noise limit of reference cavities. By locking a laser to the HG02 mode of a 10-cm long all ULE cavity, and measure its performance with the three-cornered-hat method among three independently stabilized lasers, we demonstrate a thermal noise limited performance of a fractional frequency instability of 4.9E-16. The results match the theoretical models with higher-order optical modes. The achieved laser instability improves the all ULE short cavity results to a new low level.

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X. Y. Zeng, Y. X. Ye, X. H. Shi, Z. Y. Wang, K. Deng, J. Zhang, Z. H. Lu. 2018-01-12. Thermal noise limited higher-order mode locking of a reference cavity. https://doi.org/10.1364/ol.43.001690

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