Open AccessAdiabaticity engineering in optical waveguides
Author(s) -
Yi Lin Wu,
Fu Chieh Liang,
Hung Ching Chung,
Shuo-Yen Tseng
Publication year - 2020
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.402545
Subject(s) - adiabatic process , optics , polarization (electrochemistry) , power dividers and directional couplers , physics , single mode optical fiber , wavelength , coupled mode theory , polarization mode dispersion , refractive index , optical fiber , quantum mechanics , chemistry
The fast quasi-adiabatic dynamics (FAQUAD) protocol has proven to be an effective approach to provide shortcuts to adiabatic light evolution in optical waveguides, resulting in short and robust devices. However, the FAQUAD approach of homogeneously distributing device adiabaticity only works for a single mode (polarization, wavelength, or spatial mode group) system. We propose an adiabaticity engineering approach to redistribute the adiabaticity of optical waveguides in multi-mode systems. By engineering the adiabaticity distribution using a single control parameter, we obtain shortcuts to adiabaticity in optical waveguides for multi-mode systems. The concept is applied to the design of a compact polarization-independent adiabatic 3-dB coupler on silicon.