Shortcuts to adiabaticity in optical waveguides using fast quasiadiabatic dynamics

Sofía Martínez-Garaot, Juan Gonzalo Muga, Shuo Yen Tseng

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22 Citations (Scopus)

Abstract

We propose a fast quasiadiabatic approach to the design of optical waveguide devices. This approach distributes the system adiabaticity homogeneously over the device length, thus providing a shortcut to adiabaticity at a shorter device length. A mode sorting asymmetric Y junction is designed by redistributing the adiabaticity of a conventional linearly separating Y junction. Simple procedures for the design of fast quasiadiabatic devices are outlined, and the designed Y junction features large bandwidth at a shorter length than the conventional linearly separating Y junction. The proposed device is verified with beam propagation simulations. A mode conversion efficiency of larger than 99% is observed for the designed Y junction over a 220 nm range.

Original languageEnglish
Pages (from-to)159-167
Number of pages9
JournalOptics Express
Volume25
Issue number1
DOIs
Publication statusPublished - 2017 Jan 9

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All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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