Perspectives on all-optical Kerr switching for quantum optical applications

England, Duncan; Bouchard, Frédéric; Fenwick, Kate L.; Bonsma-Fisher, Kent; Zhang, Yingwen; Bustard, Philip J.; Sussman, Benjamin J.

doi:10.1063/5.0065222

Cited by 17 publications

(10 citation statements)

References 60 publications

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“…The Brewster angle-based graphene all-optical switch proposed is this study is an all-optical Kerr switch. 30 Optical Kerr switches can instantaneously generate a phase shift in the signal light field by controlling light pulses. In these switches, a switching operation is triggered when the phase shift of the signal light changes from 0 to π.…”

Section: Brewster Anglementioning

confidence: 99%

Optical switch of low-insertion-loss based on the Brewster angle effect

Xiong

Zhu

2023

Opt. Eng.

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.Optical switches are critical components for optical communication devices, and currently, they are now bottlenecking the development of optical telecommunications. In this study, we propose an innovative all-optical Kerr switch based on the Brewster angle effect, which exhibits a graphene/SiO2/graphene/SiO2 structure and an insertion loss (IL) that can be minimized by tuning the Fermi level of the graphene layers. A novel Brewster’s angle effect is achieved, resulting in a change in the incidence angle under nonlinear conditions as well as on–off switching of the phase change. The proposed switch has perfect absorption at an incident angle of 63 deg, where the phase of the reflected light is shifted from − π to 0. Furthermore, the Brewster angle of the switch was successfully shifted from 63 deg to 80 deg with an incident frequency of 0.8 THz. It was observed that an increase in Fermi level continuously shrank the nonlinear region of the switch. The minimum IL of the proposed optical switch was only 2 dB, which is indicative of excellent energy efficiency. The results of this study can aid in the development of key devices for broadband communications and electromagnetic sensing.

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Section: Brewster Anglementioning

confidence: 99%

Optical switch of low-insertion-loss based on the Brewster angle effect

Xiong

Zhu

2023

Opt. Eng.

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“…The polarization extinction required for the control pulse is approximately 100 dB for this fiber system. However, ultrafast nonlinear polarization rotation experiments, switching the polarization state of a photon using a control-pulse, show that the 100 dB isolation is possible in standard single-mode fiber with the use of two cross-polarizers [42].…”

Section: Asymmetric Dispersion Across Signal Pulse and Significant Pr...mentioning

confidence: 99%

Maintaining Constant Pulse-Duration in Highly Dispersive Media Using Nonlinear Potentials

Zia

2021

Photonics

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A method is shown for preventing temporal broadening of ultrafast optical pulses in highly dispersive and fluctuating media for arbitrary signal-pulse profiles. Pulse pairs, consisting of a strong-field control-pulse and a weak-field signal-pulse, co-propagate, whereby the specific profile of the strong-field pulse precisely compensates for the dispersive phase in the weak pulse. A numerical example is presented in an optical system consisting of both resonant and gain dispersive effects. Here, we show signal-pulses that do not temporally broaden across a vast propagation distance, even in the presence of dispersion that fluctuates several orders of magnitude and in sign (for example, within a material resonance) across the pulse’s bandwidth. Another numerical example is presented in normal dispersion telecom fiber, where the length at which an ultrafast pulse does not have significant temporal broadening is extended by at least a factor of 10. Our approach can be used in the design of dispersion-less fiber links and navigating pulses in turbulent dispersive media. Furthermore, we illustrate the potential of using cross-phase modulation to compensate for dispersive effects on a signal-pulse and fill the gap in the current understanding of this nonlinear phenomenon.

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“…Ultra-fast optical Kerr gates are widely used in ultra-fast spectrum measurements, 1 , 2 time-gate gating ballistic light imaging, 3 , 4 and third-order nonlinear measurements 5 . Moreover, they have immense potential in the field of quantum information 6 . In recent years, the performance improvement and optimization of ultrafast optical Kerr gates have been studied.…”

Section: Introductionmentioning

confidence: 99%

“…5 Moreover, they have immense potential in the field of quantum information. 6 In recent years, the performance improvement and optimization of ultrafast optical Kerr gates have been studied. England et al 7 demonstrated an optical Kerr gate with an efficiency of up to 97% in single-mode fibers with a length of 10 cm.…”

Section: Introductionmentioning

confidence: 99%

Split-step birefringence simulation method for optical Kerr gates

et al. 2023

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A split-step birefringence simulation method is proposed to investigate the gating efficiency and intensity distribution of the Kerr signal field considering the evolution of the switch beam and probe beam in their path. Using this simulation method, we investigated the switch-beam power-dependent gating efficiency and conducted an experiment to prove its reliability. Furthermore, we analyzed the optical intensity distribution of the Kerr signal exiting the Kerr medium under different switch-beam powers. This study provides an effective theoretical tool for the design and optimization of optical Kerr gates.

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Perspectives on all-optical Kerr switching for quantum optical applications

Cited by 17 publications

References 60 publications

Optical switch of low-insertion-loss based on the Brewster angle effect

Optical switch of low-insertion-loss based on the Brewster angle effect

Maintaining Constant Pulse-Duration in Highly Dispersive Media Using Nonlinear Potentials

Split-step birefringence simulation method for optical Kerr gates

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