Free-form direct write and rewritable photonic integrated circuits in phase-change thin films

Mo Li

doi:10.1117/12.3029953

3 October 2024 Free-form direct write and rewritable photonic integrated circuits in phase-change thin films

Mo Li

Author Affiliations +

Proceedings Volume PC13113, Photonic Computing: From Materials and Devices to Systems and Applications; PC1311301 (2024) https://doi.org/10.1117/12.3029953
Event: Nanoscience + Engineering, 2024, San Diego, California, United States

Abstract

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 with PCM, our technique unlocks opportunities for programmable photonic networking, computing, and signal processing. Moreover, the rewritable photonic circuits enable rapid prototyping and testing in a convenient and cost-efficient manner, eliminate the need for nanofabrication facilities, and thus promote the proliferation of photonics research and education to a broader community.

Conference Presentation

Citation Download Citation

Mo Li "Free-form direct write and rewritable photonic integrated circuits in phase-change thin films", Proc. SPIE PC13113, Photonic Computing: From Materials and Devices to Systems and Applications, PC1311301 (3 October 2024); https://doi.org/10.1117/12.3029953

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE