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Journal of Shanghai University >

2020 , Vol. 26 >Issue 1: 69 - 75

DOI: https://doi.org/10.12066/j.issn.1007-2861.2192

Research Articles

Three-waveguide couplers designed by shortcut to adiabaticity

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  • College of Sciences, Shanghai University, Shanghai 200444, China

Received date: 2019-09-09

  Online published: 2020-03-22

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Abstract

A shortcut-to-adiabaticity protocol is proposed to design short light directional couplers by combining adiabatic elimination and counter-diabatic driving for three-level systems. For more practical implementations, we consider unitary transformation to design the waveguide width and adjacent waveguide pitch. In our example, a three-waveguide coupler is simulated by beam propagation method. Compared with adiabatic couplers, the designed coupler is shorter by four times. This approach is applicable to quantum information processing and integrated optics.

Key words： waveguide; coupler; adiabatic elimination; shortcut to adiabaticity

Cite this article

Zhiyong HAN, Jielong SHI, Zixuan LAN, Xi CHEN . Three-waveguide couplers designed by shortcut to adiabaticity[J]. Journal of Shanghai University, 2020 , 26(1) : 69 -75 . DOI: 10.12066/j.issn.1007-2861.2192

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