Controllable vacuum Rabi splitting and optical bistability of multi-wave-mixing signal inside a ring cavity

We investigate a novel detection technique to study the coherent control of dressed multiwave mixing (MWM) process. A stable laser dressing field with a wavelength of 480 nm is realized via the second harmonic generation technique. By scanning such dressing field, stable Rydberg MWM signals with high signal-to-noise ratio are observed. With the MWM signals oscillated in a stabilized three-mirror cavity and cavity dressing field scanned, dressed MWM cavity modes are obtained. Thanks to the stable 480 nm and cavity dressing fields, the longterm drift of dressed MWM in cavity can be dramatically reduced to <4 MHz from 100 MHz.

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“…3(d), both FWM and SWM cavity modes of threemirror cavity are exhibited. The FWM transmission amplitude can be described by [25] …”

Section: Test Of System Performancementioning

confidence: 99%

Stable Scanning of Dressing Fields on Multiwave Mixing in Optical Ring Cavity

Zhang

Zheng

Tian

et al. 2014

IEEE J. Quantum Electron.

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“…where Next, we set Pr 3+ :YSO crystal cell in the ring cavity ( figure 1(b)). With semi-classical approximation of the cavity effect, the cavity mode which was induced by FWM (E S and E aS ) and single-dressed by E 2 (E 1 ) can be obtained [19] as…”

Section: Iia Two-mode Entanglement Of Pa-fwmmentioning

confidence: 99%

Two-mode entanglement of dressed parametric amplification four-wave mixing in an atomic ensemble

Wang

et al. 2016

Laser Phys. Lett.

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We demonstrate the influence of dressed states on two-mode optical entanglement in a double Λ-type energy level atomic ensemble of parametric amplification four-wave mixing (PA-FWM) processes. By injecting a coherent or Einstein-Podolsky-Rosen field into PA-FWM channels, we investigate the corresponding entanglement. The quantum entanglement may be enhanced or suppressed via a bright state or a dark state. In free space, the two-mode entanglement is determined by nonlinear gain, which can be manipulated by field dressing in an atomic ensemble (i.e. Autler-Towns splitting, dressed enhancement/ suppression of entanglement). However, in a ring cavity, the cavity dressing brings about the AT-like splitting of entanglement. Such an entanglement profile may be modified by field dressing through vacuum Rabi splitting, vacuum-induced enhancement and suppression of entanglement.

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“…In this letter, we set a Pr 3+ :YSO crystal cell in the ring cavity ( figure 1(b)). In such a dressing control, atom-like system, the cavity mode, which is derived from FWM (E S1 , E S2 and E S3 ), can be obtained with a steady-state semi-classical approximation of atom-cavity coupling [22] as a g c N T d d g c N d S1…”

Section: Three-mode Entanglementmentioning

confidence: 99%

Dressing control of three-mode entanglement in two cascaded four-wave mixing

Zhang¹,

Da²,

Zhang³

et al. 2016

Laser Phys. Lett.

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We report the control of the dressed state in three-mode optical entanglement in an N-type four-level system using two cascaded parametric amplification four-wave mixing steps inside an atom-like optical cavity and injected by thermal optical fields: a coherent field and the Einstein-Podolsky-Rosen field. First, cavity dressing results in Aulter-Towns-like (AT-like peak) anti-squeezing. And the three-cavity dressing interaction induces multi-AT-like peaks. Meanwhile, the cavity enhanced nonlinear gain results in one squeezing dip polariton. In addition, the coupling of three enhanced nonlinear gains brings about multi-dip squeezing. Second, as two nonlinear coefficients change, the nonlinear phase makes the squeezing profile (in phase, amplification) turn into an anti-squeezing profile due to nonlinear loss (out of phase, de-amplification). Finally, the squeezing profile can also be modified by field dressing (AT splitting, enhancement and suppression), and the squeezing degree is affected by injection fields. Thus, by judging the squeezing of three nonseparability criteria, we get three-mode optical entanglement.

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Controllable vacuum Rabi splitting and optical bistability of multi-wave-mixing signal inside a ring cavity

Cited by 35 publications

References 29 publications

Stable Scanning of Dressing Fields on Multiwave Mixing in Optical Ring Cavity

Stable Scanning of Dressing Fields on Multiwave Mixing in Optical Ring Cavity

Two-mode entanglement of dressed parametric amplification four-wave mixing in an atomic ensemble

Dressing control of three-mode entanglement in two cascaded four-wave mixing

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