Cyclostationary shot noise in mesoscopic measurements

Roschier, Leif; Heikkilä, Tero T.; Hakonen, Pertti

doi:10.1063/1.1803103

Cited by 2 publications

(1 citation statement)

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“…[20][21][22][23], a frequency domain description of the shot noise of time-varying signals revealed that spectral correlations explained a reduction in the sensitivity of some gravitational wave detectors. Timevarying shot noise models for vacuum tubes and junction diodes have also been developed [24][25][26][27], where again there are deviations from the standard, stationary shot noise model.…”

Section: Introductionmentioning

confidence: 99%

Analysis of shot noise in the detection of ultrashort optical pulse trains

et al. 2013

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We present a frequency domain model of shot noise in the photodetection of ultrashort optical pulse trains using a time-varying analysis. Shot noise-limited photocurrent power spectral densities, signal-tonoise expressions, and shot noise spectral correlations are derived that explicitly include the finite response of the photodetector. It is shown that the strength of the spectral correlations in the shot noise depends on the optical pulse width, and that these correlations can create orders-of-magnitude imbalance between the shot noise-limited amplitude and phase noise of photonically generated microwave carriers. It is also shown that only by accounting for spectral correlations can shot noise be equated with the fundamental quantum limit in the detection of optical pulse-to-pulse timing jitter.

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Section: Introductionmentioning

confidence: 99%

Analysis of shot noise in the detection of ultrashort optical pulse trains

et al. 2013

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Cyclostationary measurement of low-frequency odd moments of current fluctuations

Heikkilä¹,

Roschier²

2005

Phys. Rev. B

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Measurement of odd moments of current fluctuations is difficult due to strict requirements for band-pass filtering. We propose how these requirements can be overcome using cyclostationary driving of the measured signal and indicate how the measurement accuracy can be tested through the phase dependence of the moments of the fluctuations. We consider two schemes, the mixing scheme and the statistics scheme, where the current statistics can be accessed. We also address the limitations of the schemes, due to excess noise and due to the effects of the environment, and, finally, discuss the required measurement times for typical setups.

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Cyclostationary shot noise in mesoscopic measurements

Cited by 2 publications

References 12 publications

Analysis of shot noise in the detection of ultrashort optical pulse trains

Analysis of shot noise in the detection of ultrashort optical pulse trains

Cyclostationary measurement of low-frequency odd moments of current fluctuations

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