Reconfigurable photonic integrated circuits based on liquid-crystal-cladded slab waveguides

Ayyoub Dehmollaian; Andrew McClung; Babak Mirzapourbeinekalaye; Amir Arbabi

doi:10.1117/12.3002084

9 March 2024 Reconfigurable photonic integrated circuits based on liquid-crystal-cladded slab waveguides

Ayyoub Dehmollaian, Andrew McClung, Babak Mirzapourbeinekalaye, Amir Arbabi

Proceedings Volume PC12890, Smart Photonic and Optoelectronic Integrated Circuits 2024; PC128900X (2024) https://doi.org/10.1117/12.3002084
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

We present fully-reconfigurable photonic integrated circuits (PICs) based on liquid-crystal-cladded slab waveguides. Our design utilizes a single-mode slab waveguide with a thin nematic liquid crystal (LC) cladding layer. We achieve local effective index modulation by controlling the LC’s director’s direction through electrodes integrated beneath the slab. As a proof of concept, we demonstrate a straight waveguide at 1550nm with voltage-controlled activation. The reconfiguration time and the excess loss due to LC were measured as 0.1 ms and 7.3 dB/cm, respectively. The low-temperature fabrication process enables cost-effective PICs on CMOS chips for 3D sensing, telecommunications, and data processing applications.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Ayyoub Dehmollaian, Andrew McClung, Babak Mirzapourbeinekalaye, and Amir Arbabi "Reconfigurable photonic integrated circuits based on liquid-crystal-cladded slab waveguides", Proc. SPIE PC12890, Smart Photonic and Optoelectronic Integrated Circuits 2024, PC128900X (9 March 2024); https://doi.org/10.1117/12.3002084

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