Multi-channel quantum noise suppression and phase-sensitive modulation in a hybrid optical resonant cavity system

Di, Ke; Tan, Shuai; Wang, Liyong; Cheng, Anyu; Wang, Xi; Sun, Yuming; Guo, Junqi; Liu, Yu; Du, Jiajia

doi:10.1016/j.optlastec.2023.109789

Optics & Laser Technology

2023

DOI: 10.1016/j.optlastec.2023.109789

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Multi-channel quantum noise suppression and phase-sensitive modulation in a hybrid optical resonant cavity system

Ke Di,

Shuai Tan,

Liyong Wang

et al.

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2024

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High-efficiency all-optical switching based on broadband coherent perfect absorption in an atom-cavity system

Wang,

Zhao,

et al. 2024

Opt. Express

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We propose an ultrahigh-efficiency and broadband all-optical switching scheme based on coherent perfect absorption (CPA) in linear and nonlinear excitation regimes in a cavity quantum electrodynamics (CQED) system. Two separate atomic transitions are excited simultaneously by two signal fields coupled from two ends of an optical cavity under the collective strong coupling condition. Three polariton eigenstates are produced which can be tuned freely by varying system parameters. The output field intensities of multiple channels are zero when the CPA criterion is satisfied. However, destructive quantum interference can be induced by a free-space weak control laser when it is tuned to be resonant to the polariton state. As a consequence, the CQED system acts as a coherent perfect light absorber/transmitter as the control field is turned on/off the polariton resonances. In particular, the proposed scheme may be used to realize broadband multi-throw all-optical switching in the nonlinear excitation regime. The proposed scheme is useful for constructing all-optical routing, all-optical communication networks and various all-optical logic elements.

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High-efficiency all-optical switching based on broadband coherent perfect absorption in an atom-cavity system

Wang,

Zhao,

et al. 2024

Opt. Express

View full text Add to dashboard Cite

show abstract

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Multi-channel quantum noise suppression and phase-sensitive modulation in a hybrid optical resonant cavity system

Cited by 1 publication

References 45 publications

High-efficiency all-optical switching based on broadband coherent perfect absorption in an atom-cavity system

High-efficiency all-optical switching based on broadband coherent perfect absorption in an atom-cavity system

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