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Compact, low-threshold squeezed light source
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DOI：10.1364/OE.27.037877.png)
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Abstract
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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 30 cmx45 cm 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. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
Keywords:
VACUUM STATES
1550 NM
QUANTUM
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