Digital Waveguide Adiabatic Passage Part 2: Experiment

Abstract

Using a femtosecond laser writing technique, we fabricate and characterise three-waveguide digital adiabatic passage devices, with the central waveguide digitised into five discrete waveguidelets. Strongly asymmetric behaviour was observed, devices operated with high fidelity in the counter-intuitive scheme while strongly suppressing transmission in the intuitive. The low differential loss of the digital adiabatic passage designs potentially offers additional functionality for adiabatic passage based devices. These devices operate with a high contrast ($>90\%$) over a 60nm bandwidth, centered at $\sim 823$nm.

References in corpus (3)

• Coherent electronic transfer in quantum dot systems using adiabatic passage
• Tuneable quantum interference in a 3D integrated circuit
• Complete transfer of populations from a single state to a pre-selected superposition of states using Piecewise Adiabatic Passage