Field-programmable silicon temporal cloak

Feng Zhou, Siqi Yan, Hailong Zhou, Xu Wang, Huaqing Qiu, Jianji Dong (), Linjie Zhou, Yunhong Ding, Cheng-Wei Qiu () and Xinliang Zhang ()
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Feng Zhou: Huazhong University of Science and Technology
Siqi Yan: Huazhong University of Science and Technology
Hailong Zhou: Huazhong University of Science and Technology
Xu Wang: Huazhong University of Science and Technology
Huaqing Qiu: Technical University of Denmark
Jianji Dong: Huazhong University of Science and Technology
Linjie Zhou: Shanghai Jiao Tong University
Yunhong Ding: Technical University of Denmark
Cheng-Wei Qiu: National University of Singapore
Xinliang Zhang: Huazhong University of Science and Technology

Nature Communications, 2019, vol. 10, issue 1, 1-8

Abstract: Abstract Temporal cloaks have aroused tremendous research interest in both optical physics and optical communications, unfolding a distinct approach to conceal temporal events from an interrogating optical field. The state-of-the-art temporal cloaks exhibit picosecond-scale and static cloaking window, owing to significantly limited periodicity and aperture of time lens. Here we demonstrate a field-programmable silicon temporal cloak for hiding nanosecond-level events, enabled by an integrated silicon microring and a broadband optical frequency comb. With dynamic control of the driving electrical signals on the microring, our cloaking windows could be stretched and switched in real time from 0.449 ns to 3.365 ns. Such a field-programmable temporal cloak may exhibit practically meaningful potentials in secure communication, data compression, and information protection in dynamically varying events.

Date: 2019
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DOI: 10.1038/s41467-019-10521-5

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