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Packaged Cryogenic Photon Pair Source Using an Effective Packaging Methodology for Cryogenic Integrated Optics

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arxiv 2401.02068 v1 pith:VMW3ZJKZ submitted 2024-01-04 physics.optics quant-ph

Packaged Cryogenic Photon Pair Source Using an Effective Packaging Methodology for Cryogenic Integrated Optics

classification physics.optics quant-ph
keywords cryogenicintegratedmethodologypackagingpairtemperatureopticsphoton
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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A new cryogenic packaging methodology that is widely applicable to packaging any integrated photonics circuit for operation at both room temperature and cryogenic temperature is reported. The method requires only equipment and techniques available in any integrated optics lab and works on standard integrated photonic chips. Our methodology is then used to enable the measurement of a single photon pair sourced based on a silicon ring resonator at cryogenic temperatures. When operating at 5.9 K, this source is measured to have a peak pair generation rate 183 times greater then at room temperature in the CL-band.

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