Gaussian pulses and superluminality

Sauter, Thilo

doi:10.1088/0305-4470/35/31/314

Cited by 9 publications

(2 citation statements)

References 42 publications

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“…To do so, we measured the effective signal velocity by comparing the transit time of a Gaussian filtered CPFSK ( Gaussian Frequency Shift Keying ) [17] modulated data frame in the slow line to the one in a reference microstrip line of the same length. By doing so, we are sure to effectively measure the information velocity, which would have not been fully the case if we had used a Gaussian modulated signal for instance [18]. The experimental setup is presented in figure 10.…”

Section: Performancesmentioning

confidence: 99%

Using a one‐dimensional bandgap metamaterial to build up a delay line

Lucas

Géron

Ditchi

2015

IET Microwaves, Antennas & Propagation

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Classical lumped components delay lines are built with inductances and capacitors arranged as to match the standard telegraphist line model to obtain slow group velocity lines. In this study, the authors demonstrate that a practical way to obtain a significant group velocity reduction consist in taking advantage of the forbidden bands that present a one-dimensional metamaterial. The feasibility of this kind of line, as well as its ability to transmit data are discussed and practically verified.

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Section: Performancesmentioning

confidence: 99%

Using a one‐dimensional bandgap metamaterial to build up a delay line

Lucas

Géron

Ditchi

2015

IET Microwaves, Antennas & Propagation

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“…Optical pulses considered as information carriers have particular waveforms. Gaussian pulses, for example, have been widely used and investigated in theoretical and experimental work because their spectral and temporal extensions are unbounded; the main portion of their spectrum lies within a comparatively small frequency range; they can be easily treated analytically and so on [1].…”

Section: Introductionmentioning

confidence: 99%

Marking slow light signals with fast optical precursors in the regime of electromagnetically induced transparency

et al. 2013

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In order to identify special information from a light pulse sequence, we propose a few viable schemes for marking a desired slow light signal with a fast optical precursor in a Λ-type and N-type atomic system. The fast optical precursor is characterized by transient beating patterns originating from the temporal discontinuity of the marking pulse at the sharp rising or falling edge. Compared with the schemes in the Λ system, the one in the N system has the advantage of flexibility in situations in which we are not the sender of the original probe signals. Besides, there is no disturbance to the probe signals nor an undesired main pulse coming from the marking field.

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100 Gb/s all-optical multifunctional AND, NOR, XOR, OR, XNOR, and NAND logic gates in a single compact scheme based on semiconductor optical amplifiers

Kotb

Chen

2021

Optics & Laser Technology

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Gaussian pulses and superluminality

Cited by 9 publications

References 42 publications

Using a one‐dimensional bandgap metamaterial to build up a delay line

Using a one‐dimensional bandgap metamaterial to build up a delay line

Marking slow light signals with fast optical precursors in the regime of electromagnetically induced transparency

100 Gb/s all-optical multifunctional AND, NOR, XOR, OR, XNOR, and NAND logic gates in a single compact scheme based on semiconductor optical amplifiers

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