Squeezed vacuum states from a whispering gallery mode resonator

Otterpohl, Alexander; Sedlmeir, Florian; Shafiee, Golnoush; Dirmeier, Thomas; Vogl, Ulrich; Schunk, Gerhard; Strekalov, Dmitry; Schwefel, Harald G. L.; Gehring, Tobias; Andersen, Ulrik L.; Leuchs, Gerd; Marquardt, Christoph

doi:10.1364/fio.2018.fw7b.3

Cited by 5 publications

(6 citation statements)

References 39 publications

(49 reference statements)

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“…We remark that although we have described a Fabry-Perot configuration, this model remains valid for any geometry of the optical and mechanical system. In particular promising devices which can support the dynamics discussed hereafter are micro-resonators which sustain both optical and mechanical modes [18], and which could be realized with a non-linear material able to provide the parametric amplification [21,22].…”

Section: Modelmentioning

confidence: 99%

“…(10). Specifically, we consider parameters consistent with realistic lithium-niobate microdisk cavities which can exhibit large non-linearity and constitute the OPO [19][20][21][22]. The resonator can be instead either a vibrational mode of the microdisk itself [18], or of a nearby evanescently coupled mechanical resonator [23].…”

Section: Effects Of the Opo Pump Fieldmentioning

confidence: 99%

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Optomechanical cooling with intracavity squeezed light

Asjad¹,

Abari²,

Zippilli³

et al. 2019

Opt. Express

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We analyze the performance of optomechanical cooling of a mechanical resonator in the presence of a degenerate optical parametric amplifier within the optomechanical cavity, which squeezes the cavity light. We demonstrate that this allows to significantly enhance the cooling efficiency via the coherent suppression of Stokes scattering. The enhanced cooling occurs also far from the resolved sideband regime, and we show that this cooling scheme can be more efficient than schemes realized by injecting a squeezed field into the optomechanical cavity.

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Section: Modelmentioning

confidence: 99%

Section: Effects Of the Opo Pump Fieldmentioning

confidence: 99%

Optomechanical cooling with intracavity squeezed light

Asjad¹,

Abari²,

Zippilli³

et al. 2019

Opt. Express

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“…Moreover, the sensitivity of such sensors is constrained by the standard quantum limit (SQL) [17] or a lower bound on the additional measurement uncertainty determined by the balance between the shot and back-action noise. However, the SQL has been surpassed using quantum non-demolition techniques [18][19][20] to achieve sub-SQL sensitivity via quantum entanglement [21][22][23] or squeezing [24][25][26][27][28][29][30][31]. Squeezed states were studied early in 1927 [32], although an explosion of interest in them was triggered 40 years ago when they were first used to detect gravitational waves via supersensitive interferometry [11,24,33,34].…”

Section: Introductionmentioning

confidence: 99%

Weak-force sensing with squeezed optomechanics

Zhao

Zhang

Miranowicz

et al. 2019

Sci. China Phys. Mech. Astron.

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We investigate quantum-squeezing-enhanced weak-force sensing via a nonlinear optomechanical resonator containing a movable mechanical mirror and an optical parametric amplifier (OPA). Herein, we determined that tuning the OPA parameters can considerably suppress quantum noise and substantially enhance force sensitivity, enabling the device to extensively surpass the standard quantum limit. This indicates that under realistic experimental conditions, we can achieve ultrahighprecision quantum force sensing by harnessing nonlinear optomechanical devices. * These authors contributed equally to this work. †

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“…Silicon 4 and aluminium 5 nitrides are less common choices for chi-2 platforms but are now generating growing interest, in part due to the existing use of these materials in electronic devices. Finally, Prof. Christoph Marquardt from the Max Planck Institute captured the attention of the audience with proposals of how to use chi-2 microresonators to generate quantum states of light 6 for secure communication on with satellite platforms.…”

mentioning

confidence: 99%

Moulding light on a ring

Skryabin

Breunig

2021

Commun Phys

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Drawing around 60 attendees and 20 presenters to a virtual lecture room, April's CHI-2 Photonics in Microresonators and Beyond conference explored recent progress in the use of microresonators and integrated photonic devices exhibiting second-order nonlinearity for optical frequency conversion.The capability of photonic integrated circuits to convert incoming photons to new colours is a critical tool in modern-day information processing and precision spectroscopy. For light, microresonators act as racetracks with the photons looping around. A long path length and small footprint are the key advantages of on-chip frequency conversion. The material property enabling frequency conversion is called nonlinear susceptibility. The second-order, or chi-2, susceptibility is one of the best-known enablers of frequency conversion. It naturally doubles or halves the light frequencya pretty large spectral leap on any practical account. Despite this, the majority of recent scientific and technological breakthroughs in microresonator-based frequency conversion have utilised the third-order, chi-3, nonlinear susceptibility. This is due to the challenges in making chi-2-based devices, such as the need to match both the phase and group velocities of photons across a broad spectral range.Over the past few years, frequency conversion in chi-2 microresonators has gradually come out from beneath the shadow of chi-3 resonators. There are very good reasons for this. Primarily, dramatic improvements in fabrication capabilities using chi-2 materials have increased the options for device architecture. This in turn allowed reduced power requirements and the softening of numerous other constraints thanks to new resonator designs, material choices, and pumping arrangements.The event opened with lectures describing recent work on non-monolithic resonators, aimed at generating relatively narrow frequency combs 1 . Frequency combs contain a regular and equally-spaced pattern of spectral lines, similar to the teeth on a comb. The regularity of these teeth allow them to be used for precision spectroscopy and other applications. Because the comb-teeth separation increases as the resonator radius decreases, the wavelength coverage of the generated spectra can be controlled.

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Squeezed vacuum states from a whispering gallery mode resonator

Cited by 5 publications

References 39 publications

Optomechanical cooling with intracavity squeezed light

Optomechanical cooling with intracavity squeezed light

Weak-force sensing with squeezed optomechanics

Moulding light on a ring

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