Fabrication of 1 × <i>N</i> integrated power splitters with arbitrary power ratio for single and multimode photonics.

ABSTRACT: Compact power splitters are essential components in integrated optics. While 1 × 2 power splitters with uniform splitting are widely used, a 1 × N splitter with arbitrary number N of ports and arbitrary splitting ratio is yet to be demonstrated. In this work we address this problem. We fabricate and characterise 1 × N integrated power splitters that provide fully arbitrary splitting ratios. The core of our design is represented by an array of N non-equally spaced waveguides fabricated on a silicon nitride-on-insulator wafer. Any arbitrary 1 × N splitting ratio can be achieved by properly setting the array length and the dimension of the (N-1) nano-gaps between the adjacent waveguides. Most importantly, at variance with state-of-the-art solutions, o

SUBMITTER: Haines J 

PROVIDER: S-EPMC11501587 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature