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Coherent frequency transfer with < 5*10-21 stability via a multi-branch comb with noise cancellation.

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We demonstrate a multi-branch frequency comb for spectral purity transfer incorporating hardware enabled noise cancellation based on a cw noise transfer laser. We verify coherent frequency transfer at stabilities ≈… Click to show full abstract

We demonstrate a multi-branch frequency comb for spectral purity transfer incorporating hardware enabled noise cancellation based on a cw noise transfer laser. We verify coherent frequency transfer at stabilities ≈ 2×10-18 in 1 second and < 5×10-21 in 10,000 seconds without any reference cavity.

Keywords: transfer; frequency; coherent frequency; multi branch; noise cancellation

Journal Title: Optics express
Year Published: 2022

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