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17 April 2024 |
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9~GHz measurement of squeezed light by interfacing silicon photonics and integrated electronics | Joel F. Tasker
; Jonathan Frazer
; Giacomo Ferranti
; Euan J. Allen
; Léandre F. Brunel
; Sébastien Tanzilli
; Virginia D'Auria
; Jonathan C. F. Matthews
; | Date: |
29 Sep 2020 | Abstract: | Photonic quantum technology can be enhanced by monolithic fabrication of both
the underpinning quantum hardware and the corresponding electronics for
classical readout and control. Together, this enables miniaturisation and
mass-manufacture of small quantum devices---such as quantum communication
nodes, quantum sensors and sources of randomness---and promises the precision
and scale of fabrication required to assemble useful quantum computers. Here we
combine CMOS compatible silicon and germanium-on-silicon nano-photonics with
silicon-germanium integrated amplification electronics to improve performance
of on-chip homodyne detection of quantum light. We observe a 3 dB bandwidth of
1.7 GHz, shot-noise limited performance beyond 9 GHz and minaturise the
required footprint to 0.84 mm. We use the device to observe quantum squeezed
light, from 100 MHz to 9 GHz, generated in a lithium niobate waveguide. This
demonstrates that an all-integrated approach yields faster homodyne detectors
for quantum technology than has been achieved to-date and opens the way to
full-stack integration of photonic quantum devices. | Source: | arXiv, 2009.14318 | Services: | Forum | Review | PDF | Favorites |
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