Ultrafast optical transistor and router of multi-order fluorescence and spontaneous parametric four-wave mixing in Pr^3+:YSO

We study an optical transistor (switch and amplifier) and router by spontaneous parametric four-wave mixing and fluorescence in diamond nitrogen-vacancy (NV) center. The routing results from three peaks of fluorescence signal in the time domain, while the switching and amplification are realized by correlation and squeezing. The intensity switching speed is about 17 ns. The optical transistor and router are controlled by the power of incident beams. Our experimental results provide that the advance technique of peak division and channel equalization ratio of about 90% are applicable to all optical switching and routing.

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“…We observed that the highest amplification ratio of an optical transistor is about 8.5 from Fig. 2(b) [14].…”

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confidence: 65%

Correlation and squeezing for optical transistor and intensity router applications in diamond NV center

et al. 2017

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“…And the interval between the split energy levels is , where N is the number of excited atoms 14 . A lot of work has been concentrated on VRS of two-level atom system (normal-mode splitting), such as in atomic beams 15 , cold atomic cloud 16 , 17 , and a Bose–Einstein condensate 18 – 20 . Specifically, the normal-mode splitting in case of , corresponding to free spectral region, have been reported widely, which is equated with generation a single cavity resonant mode splitting close to the atomic resonance.…”

Section: Introductionmentioning

confidence: 99%

The role of tunable nonlinear dark resonances on vacuum Rabi splitting and optical bistability in an atom-cavity system

Hui

Wen

Zhang

et al. 2021

Sci Rep

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The phenomenon of “dark resonances” is a well-known concept in quantum optics and laser spectroscopy. As a general rule, interactions involving in such a “dark state” lead to multiple quantum superposition states that interact coherently and are undesirable. In this paper, two types nonlinear interaction in an atomic cavity, namely the nested and cascaded interactions, are theoretically analyzed how the dark resonances form the dark state peak to modulate the vacuum Rabi splitting (VRS) and optical bistability (OB) behavior. In both the zero- and high order modes, there are four VRS peaks generated in the nested interaction and three in the cascade interaction. Dark resonance can modulate not only the peak number of VRS, but also the OB thresholds. It is found that dark state can determine the asymmetric OB distribution of nested type and symmetric OB distribution of cascade type. Besides that, the distinctive OB thresholds in two kinds of interaction also be studied. The observations not only conceptually extend the conventional “dark resonances” phenomenon, but also opens the door for a variety of new applications in tunable all-optical switch and quantum communication.

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“…On the other hand, the issues including FWM and power consumption in WDM‐based all‐optical networks should be resolved to provide high‐quality and low‐energy communications in near future. As another technique to design low‐power all‐optical networks under the FWM constraint, future all‐optical devices have been considered in the past . The proposed method focuses on a route, wavelength, and fiber selection algorithm in the upper layer, and thus, it works on such all‐optical devices in the lower layer.…”

Section: Introductionmentioning

confidence: 99%

Design of low‐power all‐optical networks under the constraint of four‐wave mixing

Hirata

Kimura

Fukuchi

et al. 2020

Int J Communication

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Summary In this paper, we propose a static lightpath establishment method to design low‐power all‐optical networks under the constraint of four‐wave mixing (FWM). Since the FWM causes nonlinear interchannel crosstalk, it degrades the communication quality of optical signals. The FWM crosstalk effect becomes strong in a fiber as the number of passing optical signals increases. Therefore, we should reduce the number of optical signals passing through the same fiber from the perspective of the FWM. Meanwhile, in order to enhance the power efficiency of optical amplifiers, which are deployed at each optical fiber, it is preferred that multiple optical signals are transmitted in the same fiber. In order to decrease the power consumption while keeping high communication quality, the proposed method statically selects routes, wavelengths, and fibers for each traffic demand, considering the FWM crosstalk effect and the usage efficiency of the optical amplifiers. We show the performance of the proposed method through numerical experiments.

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Ultrafast optical transistor and router of multi-order fluorescence and spontaneous parametric four-wave mixing in Pr^3+:YSO

Cited by 23 publications

References 13 publications

Correlation and squeezing for optical transistor and intensity router applications in diamond NV center

Correlation and squeezing for optical transistor and intensity router applications in diamond NV center

The role of tunable nonlinear dark resonances on vacuum Rabi splitting and optical bistability in an atom-cavity system

Design of low‐power all‐optical networks under the constraint of four‐wave mixing

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