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arXiv · 2101.00386

Characterization of Suspended Membrane Waveguides towards a Photonic Atom Trap Integrated Platform

Michael Gehl·William Kindel·Nicholas Karl·Adrian Orozco·Katherine Musick·Douglas Trotter·Christina Dallo·Andrew Starbuck·Andrew Leenheer·Christopher DeRose·Grant Biedermann·Yuan-Yu Jau·Jongmin Lee
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Abstract

We demonstrate an optical waveguide device, capable of supporting the high, in-vacuum, optical power necessary for trapping a single atom or a cold atom ensemble with evanescent fields. Our photonic integrated platforms, with suspended membrane waveguides, successfully manages optical powers of 6 mW (500 um span) to nearly 30 mW (125 um span) over an un-tethered waveguide span. This platform is compatible with laser cooling and magneto-optical traps (MOTs) in the vicinity of the suspended waveguide, called the membrane MOT and the needle MOT, a key ingredient for efficient trap loading. We evaluate two novel designs that explore critical thermal management features that enable this large power handling. This work represents a significant step toward an integrated platform for coupling neutral atom quantum systems to photonic and electronic integrated circuits on silicon.

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Michael Gehl, William Kindel, Nicholas Karl, Adrian Orozco, Katherine Musick, Douglas Trotter, Christina Dallo, Andrew Starbuck, Andrew Leenheer, Christopher DeRose, Grant Biedermann, Yuan-Yu Jau, Jongmin Lee. 2021-01-02. Characterization of Suspended Membrane Waveguides towards a Photonic Atom Trap Integrated Platform. https://doi.org/10.1364/oe.418986

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