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Updated: Aug 5, 2026

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
Published on: April 1, 2020
Low VπL electro-optic switch based on a densely packed waveguide array phase shifter
Abstract:
Lithium niobate on insulator and lithium tantalate on insulator are promising platforms for electro-optic (EO) switches. However, compact devices with low half-wave voltage-length products (VπL) remain challenging, limiting high-density integration. Here, we propose and experimentally demonstrate a low-VπL EO switch on x-cut LTOI based on a densely packed waveguide array (DPWA) phase shifter. The device achieves a measured VπL of 1.49 V·cm, close to the simulated 1.20 V·cm, while maintaining low insertion loss over 1520-1580 nm.
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