Dependence of the squeezing and anti-squeezing factors of bright squeezed light on the seed beam power and pump beam noise

Sun, Xiaojie; Wang, Yajun; Liang, Tian; Shi, Shengli; Zheng, Yaohui; Peng, Kunchi

doi:10.1364/ol.44.001789

Cited by 17 publications

(7 citation statements)

References 35 publications

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“…Modern sources of squeezed light typically use optical parametric oscillators or amplifiers (OPOs and OPAs); by placing the non-linear medium in an optical cavity the strength of the non-linear interaction is enhanced and the spectral properties of the generated squeezed state can be tuned. These OPO/A cavities can take the form of external Fabry-Pérot or ring cavities, or fully monolithic or semimonolithic designs using reflective coatings applied directly to the non-linear crystal end surfaces [110][111][112]. Depending on the input modes to the cavity, two broad classes of squeezed states are generated: squeezed vacuum and bright squeezed states, these are illustrated in Figure 4.…”

Section: Cavity Qedmentioning

confidence: 99%

Quantum nanophotonic and nanoplasmonic sensing: towards quantum optical bioscience laboratories on chip

Xavier

Jones

et al. 2021

Nanophotonics

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Quantum-enhanced sensing and metrology pave the way for promising routes to fulfil the present day fundamental and technological demands for integrated chips which surpass the classical functional and measurement limits. The most precise measurements of optical properties such as phase or intensity require quantum optical measurement schemes. These non-classical measurements exploit phenomena such as entanglement and squeezing of optical probe states. They are also subject to lower detection limits as compared to classical photodetection schemes. Biosensing with non-classical light sources of entangled photons or squeezed light holds the key for realizing quantum optical bioscience laboratories which could be integrated on chip. Single-molecule sensing with such non-classical sources of light would be a forerunner to attaining the smallest uncertainty and the highest information per photon number. This demands an integrated non-classical sensing approach which would combine the subtle non-deterministic measurement techniques of quantum optics with the device-level integration capabilities attained through nanophotonics as well as nanoplasmonics. In this back drop, we review the underlining principles in quantum sensing, the quantum optical probes and protocols as well as state-of-the-art building blocks in quantum optical sensing. We further explore the recent developments in quantum photonic/plasmonic sensing and imaging together with the potential of combining them with burgeoning field of coupled cavity integrated optoplasmonic biosensing platforms.

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Section: Cavity Qedmentioning

confidence: 99%

Quantum nanophotonic and nanoplasmonic sensing: towards quantum optical bioscience laboratories on chip

Xavier

Jones

et al. 2021

Nanophotonics

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“…1. The laser source of our experiment is a home-made single-frequency Nd:YVO4 laser at 1064 nm with the output power of 2.5 W. The laser preparations, including spatial-mode improvement, intensity noise suppression, polarization purification and second harmonic generation, are similar to our earlier experiments presented in Refs [29,45,46]. Our OPA is a semi-monolithic cavity consisting of a piezoactuated concave mirror and a PPKTP crystal with the dimensions of 1mm 2mm 10mm  .…”

Section: Methodsmentioning

confidence: 95%

Resource reduction for simultaneous generation of two types of continuous variable nonclassical states

et al. 2020

Self Cite

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We demonstrate experimentally the simultaneous generation and detection of two types of continuous variable nonclassical states from one type-0 phase-matching optical parametric amplification (OPA) and subsequent two ring filter cavities (RFCs). The output field of the OPA includes the baseband ω 0 and sideband modes ω 0±n ω f subjects to the cavity resonance condition, which are separated by two cascaded RFCs. The first RFC resonates with half the pump wavelength ω 0 and the transmitted baseband component is a squeezed state. The reflected fields of the first RFC, including the sideband modes ω 0± ω f, are separated by the second RFC, construct Einstein-Podolsky-Rosen entangled state. All freedoms, including the filter cavities for sideband separation and relative phases for the measurements of these sidebands, are actively stabilized. The noise variance of squeezed states is 10.2 dB below the shot noise limit (SNL), the correlation variances of both quadrature amplitude-sum and quadrature phase-difference for the entanglement state are 10.0 dB below the corresponding SNL.

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“…The noise variances of measured PAR phase are limited by initial squeezing factor and system loss. It is worth noting that the parametric amplification process (for the generation of quadrature phase squeezed state) intensifies the noise coupling between the seed and pump field, which usually results in the degradation of the squeezing factor [42]. As the pump factor is increased, the noise coupling enhances.…”

Section: Figmentioning

confidence: 99%

Quantum positioning and ranging via a distributed sensor network

Sun¹,

Wei

Tian³

et al. 2022

Photon. Res.

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Quantum sensor network with multipartite entanglement offers a sensitivity advantage in optical phase estimation over classical scheme. In order to tackle richer sensing problems, we construct a distributed sensor network with four nodes via four partite entanglements, unveil the estimation of the higher order derivative of radio-frequency signal phase, and unlock the potential of quantum target ranging and space positioning. Therefore, taking phased-array radar as an example, we demonstrate the optimal quantum advantages for space positioning and target ranging missions. Without doubt, the demonstration that endows innovative physical conception opens up a widespread application of quantum sensor network.

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Dependence of the squeezing and anti-squeezing factors of bright squeezed light on the seed beam power and pump beam noise

Cited by 17 publications

References 35 publications

Quantum nanophotonic and nanoplasmonic sensing: towards quantum optical bioscience laboratories on chip

Quantum nanophotonic and nanoplasmonic sensing: towards quantum optical bioscience laboratories on chip

Resource reduction for simultaneous generation of two types of continuous variable nonclassical states

Quantum positioning and ranging via a distributed sensor network

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