Quantum squeezing enhancement based on phase-sensitive cascaded four-wave mixing processes

Lou, Yanbo; Chen, Yingxuan; Wang, Jiabin; Liu, Shengshuai; Jing, Jietai

doi:10.1007/s11433-022-2092-4

Sci. China Phys. Mech. Astron.

2023

DOI: 10.1007/s11433-022-2092-4

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Quantum squeezing enhancement based on phase-sensitive cascaded four-wave mixing processes

Yanbo Lou

Yingxuan Chen

Jiabin Wang

et al.

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2024

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Cited by 4 publications

References 49 publications

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Harmonic‐Assisted Super‐Resolution Rotational Measurement

Guo,

Wang,

Zhao

et al. 2024

Laser & Photonics Reviews

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Enhancing rotational measurement resolution and broadening the detectable spectral range are two critical and unresolved matters within the realm of motion perception. The rotational Doppler effect (RDE) is combined with the harmonic generation process to create a rotational measurement scheme that offers flexible detection wavelength conversion, exponential improvement of measurement resolution, and real‐time display of detection results. In the experiments, a cascaded second harmonic generation process is employed to attain a fourfold enhancement in rotational resolution and demonstrate how low‐cost silicon‐based detectors can be used for real‐time detection of infrared objects. This scheme employs a Gaussian beam within the nonlinear process to achieve high conversion efficiency, thereby enabling potential for subsequent cascade amplification. Additionally, it is fully compatible with existing RDE schemes, allowing for co‐amplification of rotational resolution at both the front‐end and back‐end. This research could offer a more precise and cost‐effective method for remote sensing detection.

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Harmonic‐Assisted Super‐Resolution Rotational Measurement

Guo,

Wang,

Zhao

et al. 2024

Laser & Photonics Reviews

View full text Add to dashboard Cite

show abstract

Implementation of integrated nonlocal sensing for object shape and rotational speed

Guo,

Wang,

Chang

et al. 2024

Sci. China Phys. Mech. Astron.

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Experimental enhancement of six-beam quantum squeezing by phase-sensitive cascaded four-wave mixing processes

Wang,

Lou,

Liu

et al. 2024

Opt. Express

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We experimentally realize the enhancement of six-beam quantum squeezing by utilizing a six-beam phase-sensitive amplifier (PSA) based on cascaded four-wave mixing processes. Compared to the intensity-difference squeezing (IDS) of about 5.03 or 5.09 dB generated by a six-beam phase-insensitive amplifier (PIA), the six-beam IDS generated by the six-beam PSA is enhanced to about 6.64 dB. The intrinsic interference of six-beam PSA induces this enhancement. In addition, we investigate the dependence of IDS generated by the six-beam PSA and PIAs on the powers of two pump beams. The results show that the IDS of six-beam PSA is always better than that of six-beam PIAs. Our scheme may find potential applications in high-precision multi-parameter quantum metrology.

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Quantum squeezing enhancement based on phase-sensitive cascaded four-wave mixing processes

Cited by 4 publications

References 49 publications

Harmonic‐Assisted Super‐Resolution Rotational Measurement

Harmonic‐Assisted Super‐Resolution Rotational Measurement

Implementation of integrated nonlocal sensing for object shape and rotational speed

Experimental enhancement of six-beam quantum squeezing by phase-sensitive cascaded four-wave mixing processes

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