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.

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Cited by in corpus (2)

• Mode-division (de)multiplexing using adiabatic passage and supersymmetric waveguides
• Digital Waveguide Adiabatic Passage Part 1: Theory