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Thin Layer Design of X-Cut Lithium Niobate Electrooptic Modulator With Slotted SiO2 Substrate

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2 Author(s)
Gorman, T. ; Univ. of Kent, Canterbury ; Haxha, S.

In this letter, we present a novel lithium niobate (LN) electrooptic modulator. The proposed modulator incorporates a thin layer of LN and a slotted substrate structure that together facilitate velocity and impedance matching. A full-wave analysis of the proposed modulator is undertaken in order to establish the frequency dispersion effects with respect to the devices microwave effective index Nm, characteristic impedance Zc, and half-wave voltage length product VpiL.

Published in:

Photonics Technology Letters, IEEE  (Volume:20 ,  Issue: 2 )