Numerical studies of multimodal phase-sensitive parametric amplification

Jovanovic, Igor; French, Doran C.; Walter, Joshua C.; Ratowsky, R. P.

doi:10.1364/josab.26.001169

Cited by 11 publications

(11 citation statements)

References 21 publications

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“…3. The apparent angular separation of the two point sources is increased as a result of the re-distribution of spatial frequencies produced by the PSA [9]. This redistribution occurs without increasing in the width of the spatial frequency distribution.…”

Section: Introductionmentioning

confidence: 98%

“…One method that has been suggested to improve resolution beyond that achievable by passive optical imaging systems is the use of PSA operated in a phase amplification mode. This mode of operation can be achieved via nonlinear three-wave mixing in an optical parametric amplifier (OPA) configured as a photon number deamplifier [8,9]. When an ideal, constant deamplification phase relationship exists among the three waves involved in the difference-frequency mixing process, the relative phase of the three waves is preserved.…”

Section: Introductionmentioning

confidence: 99%

“…When an ideal, constant deamplification phase relationship exists among the three waves involved in the difference-frequency mixing process, the relative phase of the three waves is preserved. If a phase shift is present in the signal beam such that the signal phase departs from this ideal phase condition, this signal phase shift can be amplified [9]. In our previous work, we have derived the criteria for which a realistic OPA operating on spatially multimode beams with a transversely variable phase shift can be made phase-sensitive [9].…”

Section: Introductionmentioning

confidence: 99%

“…This shows the PSA has a potential to beat the classical Rayleigh limit and achieve the de Broglie resolution, or Heisenberg limit [12]. We apply our previously developed numerical model for multimode PSA [9] to study the distinguishability problem posed in [1]. The distinguishability problem studied is shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

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Assessment of image resolution improvement by phase-sensitive optical parametric amplification

et al. 2010

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Classical information theory can be used to quantify the resolution performance of optical imaging systems. When an optical parametric amplifier (OPA) operated as a phase-sensitive amplifier (PSA) in the transverse spatial domain is used for point source imaging, the angular resolution improvement can approach the de Broglie resolution (i.e. Heisenberg limit). In this paper, classical information theory is employed to quantify the signal-to-noise ratio (SNR) improvement for both an ideal and a realistic multimode PSA applied to the problem of sub-Rayleigh imaging. When only considering the noise originating from the detector, the SNR improvement is found to scale quadratically as a function of the PSA gain, in the limit of noise power comparable to signal power. Differences in performance of an ideal PSA and a realistic PSA are discussed.

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Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Assessment of image resolution improvement by phase-sensitive optical parametric amplification

et al. 2010

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“…In our prior work, we have developed a semiclassical model for QPA implemented by PSTWM, both in the temporal and the spatial domain, and discussed its features and An example for phase amplification characteristic ϕ out = f (ϕ in ) calculated for PSTWM with undepleted pump [11]. The characteristic is linear for a small output phase difference among the signal, idler, and pump (ϕ out π/2) possible applications.…”

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confidence: 99%

Optimized detection of phase amplified light for imaging resolution improvement

Yin

Jovanovic

2012

Appl. Phys. B

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The use of quantum phase amplification has been proposed to enhance the spatial resolution of imaging systems. A key component of this approach is the production of phase-amplified light, which can be generated in a phase-sensitive three-wave nonlinear mixing process, such as an optical parametric amplifier. Here we present a refined model for detection of phase-amplified light produced by this method, which includes optimization of detector segmentation, detector noise, and detection in both the spatial and the spatial frequency domain. The implications of quantum phase amplification for resolution of optical imaging are considered in a canonical imaging resolution problem.

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