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arXiv · 2412.17708

Ultrashort-pulse-pumped, single-mode type-0 squeezers in lithium niobate nanophotonics

Martin Houde·Liam Beaudoin·Robert Kwolek·Kazuki Hirota·Rajveer Nehra·Nicolás Quesada
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Abstract

We present design principles for ultrashort-pulse, type-0 phase-matched optical parametric amplifiers to generate and measure spectrally pure degenerate squeezed light. We consider a fundamental signal (second-harmonic) mode at 2090 (1045) nm and show that our proposed design achieves a Schmidt number of $K \approx 1.02$ with squeezing levels greater than 15 dB on a single temporal mode spanning over $5$ THz in bandwidth with cm-scale devices on thin-film lithium niobate (TFLN) on insulator platform. Our work opens up promising avenues for large-scale circuits for ultrafast quantum information processing and quantum sensing applications on the rapidly advancing TFLN platform with already demonstrated linear components and photodetection capabilities.

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Martin Houde, Liam Beaudoin, Robert Kwolek, Kazuki Hirota, Rajveer Nehra, Nicolás Quesada. 2024-12-23. Ultrashort-pulse-pumped, single-mode type-0 squeezers in lithium niobate nanophotonics. https://doi.org/10.1364/opticaq.566703

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