Design and demonstration of temporal cloaks with and without the time gap

Wu, Kedi; Wang, Guo Ping

doi:10.1364/oe.21.000238

Cited by 19 publications

(16 citation statements)

References 22 publications

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“…Based on the Fourier analysis method, the approach realizing temporal cloak with and without the time gap was proposed in Ref. 11. Temporal cloak based on the polarization was proposed in Ref.…”

Section: Introductionmentioning

confidence: 99%

“…The advantage of Refs. 11 and 12 is that the operations of opening and closing time gap are not required, but they are still complicated. For example, four mirrors, two lens, and two gratings were used in Ref.…”

Section: Introductionmentioning

confidence: 99%

“…For example, four mirrors, two lens, and two gratings were used in Ref. 11, and accurate polarization control was required in Ref. 12.…”

Section: Introductionmentioning

confidence: 99%

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Periodically poled lithium niobate-based scheme for optical signal temporal cloak and encryption in the optical physical layer

Zhao

Gan

et al. 2023

Opt. Eng.

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Based on periodically poled lithium niobate, a scheme for optical signal temporal cloak and encryption in the optical physical layer is proposed and numerically studied, in which the amplitude and phase information of the symbols to be sent are detected and transmitted while that of all other symbols will be hidden from the receiver. Meanwhile, the phase and amplitude of the symbols that are not hidden can be encrypted according to arbitrary encryption rules in the optical physical layer. The simulation results show that there is almost no ripple in the cloak time window, which makes the performance of temporal cloak quite well. The output signals with high Q factor can be obtained when the linewidths of the tunable lasers are <300 kHz. Two simple encryption rules are designed, 43.75% of binary codes will be misinterpreted by eavesdropper if the signal is encrypted with such two rules in the demonstration.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Periodically poled lithium niobate-based scheme for optical signal temporal cloak and encryption in the optical physical layer

Zhao

Gan

et al. 2023

Opt. Eng.

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“…In resent years, temporal cloak has been widely studied both theoretically and experimentally [1][2][3][4][5][6][7][8][9][10]. It is an analogy with spatial cloak [11] from the space-time duality associated with diffraction and dispersion [12,13].…”

Section: Introductionmentioning

confidence: 99%

Tunable temporal gap based on simultaneous fast and slow light in electro-optic photonic crystals

Li¹,

Chen²,

Jiang³

et al. 2015

Opt. Express

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We demonstrated a tunable temporal gap based on simultaneous fast and slow light in electro-optic photonic crystals. The light experiences an anomalous dispersion near the transmission center and a normal dispersion away from the center, where it can be accelerated and slowed down, respectively. We also obtained the switch between fast and slow light by adjusting the external electric filed. The observed largest temporal gap is 541 ps, which is crucial in practical event operation inside the gap. The results offer a new solution for temporal cloak.

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“…This was evident from the optical fibre implementation suggested originally in [1], and also from the quickly achieved experimental demonstration using an improved time-lens technique [16]. Other event cloak inspired ideas have been also proposed [17,18], but the purist might debate whether or not they count as true event cloaks, since they rely on spatial re-routing of the light signals.…”

Section: Introductionmentioning

confidence: 99%

Cloaks, editors, and bubbles: applications of spacetime transformation theory

Kinsler

McCall

2013

Annalen der Physik

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Spacetime or 'event' cloaking was recently introduced as a concept, and the theoretical design for such a cloak was presented for illumination by electromagnetic waves [1]. Here we describe how event cloaks can be designed for simple wave systems, using either an approximate 'speed cloak' method, or an exact full-wave one. Further, we discuss in detail many of the implications of spacetime transformation devices, covering their (usually) directional nature, spacetime distortions (as opposed to cloaks), and how leaky cloaks manifest themselves. We also address more exotic concepts that follow naturally on from considerations of simple spacetime transformation devices, such as spacetime modeling and causality editors; and describe a proposal for implementing the interrupt-without-interrupt concept suggested by McCall et al. [1]. Finally, the design for a timedependent 'bubbleverse' is presented, based on temporally modulated Maxwell's Fisheye

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Design and demonstration of temporal cloaks with and without the time gap

Cited by 19 publications

References 22 publications

Periodically poled lithium niobate-based scheme for optical signal temporal cloak and encryption in the optical physical layer

Periodically poled lithium niobate-based scheme for optical signal temporal cloak and encryption in the optical physical layer

Tunable temporal gap based on simultaneous fast and slow light in electro-optic photonic crystals

Cloaks, editors, and bubbles: applications of spacetime transformation theory

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