藉由量子-光學相似性，我們提出了由一種稱為絕熱捷徑(Shortcuts to adiabaticity)的技術設計的極短、製程容忍度高，寬頻的矽光子元件，而絕熱捷徑可以用來縮短傳統的絕熱元件結構，並保有絕熱元件寬頻、製程容忍度高的特性。其中包括寬頻、製程容忍度高的矽光子3-dB耦合器是利用一種基於不變量(Invariant)及優化絕熱(Optimization of adiabaticity)的絕熱捷徑來使元件的特性接近絕熱元件；我們也利用一種稱為快速類絕熱動態(Fast quasiadiabaitc dynamics)的技術來設計一個高效率的錐形波導跟一個極短、寬頻、製程容忍度高的極化轉換器錐形波導跟極化分離旋轉器，而快速類絕熱動態可以使絕熱系數均勻分布在元件中。這些矽光子元件具有良好的波長跟製程容忍度，而且所有元件都具有短的元件長度。

Based on the analogies between quantum mechanics and wave optics, we propose ultrashort and broadband silicon photonics devices designed by a technique called shortcuts to adiabaticity (STA) to speed up adiabatic passage. The devices include a robust silicon 3-dB coupler designed by the shortcuts to adiabaticity based on invariant and optimization of adiabaticity that engineer the system evolution to be as close to the adiabatic state as possible, an efficient taper waveguide, and an ultrashort and broadband polarization mode converter and PSR using the fast quasiadiabaticity dynamics (FAQUAD) protocaol. The FAQUAD protocol is used to homogeneously distribute the adiabaticity parameter over the length of the devices. These silicon photonics devices feature good robustness against wavelength and fabrication variations at the same time, and all devices have short devices lengths.

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