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High-power, low-phase-noise, frequency-agile laser system for delivering fiber-noise-cancelled pulses for Strontium clock atom interferometry

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arxiv 2212.06298 v1 pith:3YUYGNUV submitted 2022-12-13 physics.optics gr-qcphysics.atom-ph

High-power, low-phase-noise, frequency-agile laser system for delivering fiber-noise-cancelled pulses for Strontium clock atom interferometry

Kenneth DeRose , Tejas Deshpande , Yiping Wang , Tim Kovachy This is my paper
classification physics.optics gr-qcphysics.atom-ph
keywords atomclockdemonstrateinterferometrylaseropticalstrontiumsystem
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We present the development of a laser system for performing single-photon atom interferometry on the 698 nm clock transition in ultracold Strontium. We coherently combine the power of two Titanium:Sapphire lasers and demonstrate chirps of 200 MHz in 2.5 ms while phase-locked to an optical reference. Moreover, we demonstrate a novel scheme to deliver 4 W pulsed beams to the atoms via a mode-cleaning optical fiber using active noise cancellation.

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  1. Characterisation of a strontium cold atom source using fluorescence spectroscopy and time-of-flight

    physics.atom-ph 2026-07 conditional novelty 4.0

    At push saturation 0.45 a strontium 2D-MOT source delivers about 1.5–1.7×10^8 capturable atoms/s below 30 m/s, with unidirectional-probe data scaled by a simulation factor to match counter-propagating results.