Freeform direct-write and rewritable photonic integrated circuits in phase-change thin films.

ABSTRACT: Photonic integrated circuits (PICs) with rapid prototyping and reprogramming capabilities promise revolutionary impacts on a plethora of photonic technologies. We report direct-write and rewritable photonic circuits on a low-loss phase-change material (PCM) thin film. Complete end-to-end PICs are directly laser-written in one step without additional fabrication processes, and any part of the circuit can be erased and rewritten, facilitating rapid design modification. We demonstrate the versatility of this technique for diverse applications, including an optical interconnect fabric for reconfigurable networking, a photonic crossbar array for optical computing, and a tunable optical filter for optical signal processing. By combining the programmability of the direct laser writing technique w

SUBMITTER: Wu C 

PROVIDER: S-EPMC10775994 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature