• Optical Instruments
  • Vol. 46, Issue 2, 7 (2024)
Ting WANG1、2, Weihong SHEN1, Steffen SCHOENHARDT1, and Qiming ZHANG1、*
Author Affiliations
  • 1Institute of Photonic Chips, University of Shanghai for Science and Technology, Shanghai 200093, China
  • 2School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
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    DOI: 10.3969/j.issn.1005-5630.202303080045 Cite this Article
    Ting WANG, Weihong SHEN, Steffen SCHOENHARDT, Qiming ZHANG. Bistability in hybrid micro-ring resonator for all-optical memory[J]. Optical Instruments, 2024, 46(2): 7 Copy Citation Text show less

    Abstract

    In this paper, we propose a heterogeneous integrated waveguide platform. The bistable behavior of a micro-ring resonator is observed and analyzed, and the implementation of all-optical memory is shown. The proposed heterogeneous integrated waveguide has strong Kerr nonlinear effect, without the restrictions on thermo-optical effect and free-carrier lifetime. Pure Kerr nonlinear effect enables the ultra-fast all-optical switching. We designed a micro-ring resonator with high quality factor Q = 77565. The bistable behavior was simulated based on coupled mode theory (CMT), and an all-optical memory was realized under the pulse excitation with peak power of 474 fJ and pulse width of 20 ps. Besides, we demonstrated the wavelength addressable four-bit optical memory using four micro-ring resonators cascaded by wavelength division multiplexing. This paper investigates the bistability based on high Kerr nonlinear effect, which provides the possibility of achieving ultra-fast all-optical switching, and shows certain research significance on optical storage, optical switching, and artificial intelligence.
    Ting WANG, Weihong SHEN, Steffen SCHOENHARDT, Qiming ZHANG. Bistability in hybrid micro-ring resonator for all-optical memory[J]. Optical Instruments, 2024, 46(2): 7
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