Integrated visible-light liquid-crystal-based phase modulators
Name
oe-30-8-13790.pdf
Description
Published version
Size
5.94 MB
Format
Adobe PDF
Checksum (MD5)
bbf0a6984a0e5df26863aaaf98e765d8
Author(s)
Notaros, Milica
Dyer, Thomas
Raval, Manan
Baiocco, Christopher
Notaros, Jelena
Watts, Michael R
Date Issued
April 11, 2022
Journal
Optics Express
Publisher
Optica Publishing Group
Citation
Notaros, Milica, Dyer, Thomas, Raval, Manan, Baiocco, Christopher, Notaros, Jelena et al. 2022. "Integrated visible-light liquid-crystal-based phase modulators." Optics Express, 30 (8).
Version
Final published version
Abstract
In this work, an integrated liquid-crystal-based phase modulator operating at visible wavelengths was developed and experimentally demonstrated. A visible-light silicon-nitride-based 300-mm-wafer foundry platform and a liquid-crystal integration process were developed to leverage the birefringence of liquid crystal to actively tune the effective index of a section of silicon-nitride waveguide and induce a phase shift over its length. The device was experimentally shown to achieve a 41π phase shift within 4.8 Vpp for a 500-µm-long modulator, which means that a 2π phase shifter would need to be only 24.4 µm long. This device is a compact and low-power solution to the challenge of integrated phase modulation in silicon nitride and paves the way for future low-power small-form-factor integrated systems at visible wavelengths.
MIT Department
Massachusetts Institute of Technology. Research Laboratory of Electronics
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1364/oe.454494
