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Optical and RF Characterization of a Lithium Niobate Photonic Crystal Modulator

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7 Author(s)
Huihui Lu ; Key Lab. of Optoelectron. Inf. & Sensing Technol., Jinan Univ., Guangzhou, China ; Wentao Qiu ; Guyot, C. ; Ulliac, G.
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We optically characterize a micrometric radio frequency electro-optic modulator based on a lithium niobate photonic crystal. With the vertically deposited sidewalls electrodes, the experimental results show a half-wave voltage length product Vπ*L figure of merit of 0.0063 V-cm, a bandwidth of ~1 GHz for an active interaction area of ~37 μm2. This is the smallest figure of merit measured on an electro-optic modulator to date by several orders of magnitude with respect to bulk lithium niobate.

Published in:

Photonics Technology Letters, IEEE  (Volume:26 ,  Issue: 13 )