Observation of Multimode Quantum Correlations in Fiber Optical Solitons

Spälter, S.; Korolkova, Natalia; König, Friedrich; Sizmann, A.; Leuchs, Gerd

doi:10.1103/physrevlett.81.786

Cited by 90 publications

(82 citation statements)

References 19 publications

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“…We consider both narrow-bandwidth spectral pulse components [16] and pulse components with finite spectral bandwidth selected by optimally chosen square bandpass filters [30]. The numerically obtained results illustrate the possibility to use optical solitons for generation of squeezed light and nonclassically correlated light beams also in the presence of absorption.…”

Section: Introductionmentioning

confidence: 91%

“…Note that for Gaussian quantum states the criterion (14) is closely related to that used in [16]. Similarly, the mutual correlation of the numbers of photons in the two frequency intervals can be considered,…”

Section: Nonclassical Spectral Correlationsmentioning

confidence: 99%

“…1(a) is used in [13] (and with slightly modified detection in [14]) for measuring spectral photon-number squeezing. The scheme can also be used to reconstruct correlations between different spectral components from the measured data [16]. However with regard to direct correlation measurement, a scheme of the type shown in Fig.…”

Section: Nonclassical Spectral Correlationsmentioning

confidence: 99%

“…In the experiment in [15] with asymmetrical (10/90) fiber-loop interferometer photon-number squeezing up to 6.0dB is achieved. Recently the experimental studies have been extended to internal spectral photon-number correlations associated with narrow bandwidth soliton components [16].…”

Section: Introductionmentioning

confidence: 99%

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Nonclassical correlations in damped quantum solitons

Schmidt¹,

Knöll²,

Welsch³

2000

J. Opt. B: Quantum Semiclass. Opt.

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Using cumulant expansion in Gaussian approximation, the internal quantum statistics of damped soliton-like pulses in Kerr media are studied numerically, considering both narrow and finite bandwidth spectral pulse components. It is shown that the sub-Poissonian statistics can be enhanced, under certain circumstances, by absorption, which damps out some destructive interferences. Further, it is shown that both the photon-number correlation and the correlation of the photon-number variance between different pulse components can be highly nonclassical even for an absorbing fiber. Optimum frequency windows are determined in order to realize strong nonclassical behavior, which offers novel possibilities of using solitons in optical fibers as a source of nonclassically correlated light beams.

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Section: Introductionmentioning

confidence: 91%

Section: Nonclassical Spectral Correlationsmentioning

confidence: 99%

Section: Nonclassical Spectral Correlationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Nonclassical correlations in damped quantum solitons

Schmidt¹,

Knöll²,

Welsch³

2000

J. Opt. B: Quantum Semiclass. Opt.

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show abstract

“…This technique is known as squeezing by spectral filtering and has been used for ps-pulses [10] and for sub-ps-pulses [11]. Numerical simulations [12] as well as experimental tests [13] have shown the high degree of correlation. Our goal is to investigate whether the correlations also exist in the new microstructured fibre, where solitons can propagate at a centre wavelength shorter than 800nm.…”

Section: Spectral Filteringmentioning

confidence: 99%

Squeezed light from microstructured fibres: towards free-space quantum cryptography

et al. 2001

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Observation of Robust Polarization Squeezing via the Kerr Nonlinearity in an Optical Fiber

et al. 2023

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Squeezed light is one of the resources of photonic quantum technology. Among the various nonlinear interactions capable of generating squeezing, the optical Kerr effect is particularly easy‐to‐use. A popular venue is to generate polarization squeezing, which is a special self‐referencing variant of two‐mode squeezing. To date, polarization squeezing generation setups have been very sensitive to fluctuations of external factors and have required careful tuning. In this work, a development of a new all‐fiber setup for polarization squeezing generation is reported. The setup consists of passive elements only and is simple, robust, and stable. More than 5 dB of directly measured squeezing is obtained over long periods of time without any need for adjustments. Thus, the new scheme provides a robust and easy‐to‐set‐up way of obtaining squeezed light applicable to different applications. The impact of pulse duration and pulse power on the degree of squeezing is investigated.

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Observation of Multimode Quantum Correlations in Fiber Optical Solitons

Cited by 90 publications

References 19 publications

Nonclassical correlations in damped quantum solitons

Nonclassical correlations in damped quantum solitons

Squeezed light from microstructured fibres: towards free-space quantum cryptography

Observation of Robust Polarization Squeezing via the Kerr Nonlinearity in an Optical Fiber

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