| Authors: | Y. Xing, T. Ako, J. George, D. Korn, H. Yu, P. Verheyen, M. Pantouvaki, G. Lepage, P. Absil, A. Ruocco, C. Koos, J. Leuthold, K. Neyts, J. Beeckman, W. Bogaerts | | Title: | Digitally Controlled Phase Shifter using an SOI Slot Waveguide with Liquid Crystal Infiltration | | Format: | International Journal | | Publication date: | 2/2015 | | Journal/Conference/Book: | Photonics Technology Letters
| | Volume(Issue): | 27(12) p.1269 - 1272 | | DOI: | 10.1109/LPT.2015.2416438 | | Citations: | 49 (Dimensions.ai - last update: 14/4/2024)
22 (OpenCitations - last update: 19/4/2024)
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Abstract
We demonstrate a phase shifter using a silicon slot waveguide infiltrated with liquid crystal. For a 1mm long device we achieve 73pi phase shift with a 5V voltage, with a voltagelength product of 0.022Vmm around 1V. We drive the phase shifter with a digital 1V, duobinary pulse-width-modulated signal, or a 1V frequency-modulated signal. This enables direct digital CMOS control of an analog optical phase shifter. Related Research Topics
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