Laser stabilization to a cryogenic fiber ring resonator

• URL: http://arxiv.org/abs/2012.08898v1
• Date: Wed, 16 Dec 2020 12:19:25 GMT
• Title: Laser stabilization to a cryogenic fiber ring resonator
• Abstract summary: We investigate a fiber-based ring resonator at cryogenic temperature. Our system exhibits a first-order temperature-insensitive point around $3.55$ K, much lower than that of crystalline silicon.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The frequency stability of lasers is limited by thermal noise in state-of-the-art frequency references. Further improvement requires operation at cryogenic temperature. In this context, we investigate a fiber-based ring resonator. Our system exhibits a first-order temperature-insensitive point around $3.55$ K, much lower than that of crystalline silicon. The observed low sensitivity with respect to vibrations ($<5\cdot{10^{-11}}\,\text{m}^{-1} \text{s}^{2}$), temperature ($-22(1)\cdot{10^{-9}}\,\text{K}^{-2}$) and pressure changes ($4.2(2)\cdot{10^{-11}}\,\text{mbar}^{-2}$) makes our approach promising for future precision experiments.

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