Title :
Thin Layer Design of X-Cut Lithium Niobate Electrooptic Modulator With Slotted SiO2 Substrate
Author :
Gorman, T. ; Haxha, S.
Author_Institution :
Univ. of Kent, Canterbury
Abstract :
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.
Keywords :
electro-optical modulation; impedance matching; lithium compounds; optical communication equipment; optical design techniques; optical materials; LiNbO3; SiO2; frequency dispersion effects; full-wave analysis; lithium niobate electrooptic modulator; microwave effective index; thin layer design; velocity matching; Bandwidth; Buffer layers; Chirp modulation; Electrodes; Electrooptic modulators; Impedance matching; Lithium niobate; Microwave devices; Optical waveguides; Voltage; Integrated optics; lithium niobate (LN); optical communications;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2007.912559
