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Field-programmable silicon temporal cloak.

Feng Zhou1, Siqi Yan1, Hailong Zhou1

  • 1Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information, Huazhong University of Science and Technology, 430074, Wuhan, China.

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|June 22, 2019
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Summary
This summary is machine-generated.

Researchers developed a field-programmable silicon temporal cloak to hide nanosecond events. This device offers dynamic control over cloaking windows, advancing optical communications and information protection.

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Area of Science:

  • Optics and Optical Communications
  • Applied Physics
  • Information Technology

Background:

  • Temporal cloaks conceal events from optical fields, arousing significant research interest.
  • Existing temporal cloaks have limitations, including picosecond-scale, static cloaking windows due to restricted periodicity and time lens aperture.

Purpose of the Study:

  • To demonstrate a novel field-programmable silicon temporal cloak capable of hiding nanosecond-level events.
  • To overcome the limitations of static cloaking windows in state-of-the-art temporal cloaks.

Main Methods:

  • Integration of a silicon microring with a broadband optical frequency comb.
  • Dynamic control of driving electrical signals on the microring to manipulate cloaking windows.

Main Results:

  • Successful demonstration of a field-programmable temporal cloak for nanosecond events.
  • Achieved real-time stretching and switching of cloaking windows from 0.449 ns to 3.365 ns.
  • Utilized a silicon microring and optical frequency comb for dynamic cloaking.

Conclusions:

  • The developed field-programmable temporal cloak offers dynamic control over cloaking duration.
  • This technology holds practical potential for secure communication, data compression, and information protection in dynamic scenarios.