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arXiv · 1909.01160

A Compact, Mobile, Low-Threshold Squeezed Light Source

Jens Arnbak·Christian Scheffmann Jacobsen·Rayssa Bruzaca de Andrade·Xueshi Guo·Jonas Schou Neergaard-Nielsen·Ulrik Lund Andersen·Tobias Gehring
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Abstract

Strongly squeezed light finds many important applications within the fields of quantum metrology, quantum communication and quantum computation. However, due to the bulkiness and complexity of most squeezed light sources of today, they are still not a standard tool in quantum optics labs. We have taken the first steps in realizing a compact, high-performance 1550 nm squeezing source based on commercially available fiber components combined with a free-space double-resonant parametric down-conversion source. The whole setup, including single-pass second-harmonic generation in a waveguide, fits on a small breadboard and produces 9.3 dB of squeezing at a 5 MHz sideband-frequency. The setup is currently limited by phase noise, but further optimization and development should allow for a 19" sized turn-key squeezing source capable of delivering more than 10 dB of squeezing.

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Jens Arnbak, Christian Scheffmann Jacobsen, Rayssa Bruzaca de Andrade, Xueshi Guo, Jonas Schou Neergaard-Nielsen, Ulrik Lund Andersen, Tobias Gehring. 2019-09-03. A Compact, Mobile, Low-Threshold Squeezed Light Source. https://doi.org/10.1364/oe.27.037877

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