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Design optimization of Z-cut lithium, niobate electrooptic modulator with profiled metal electrodes and waveguides

Gorman, Terry, Haxha, Shyqyri (2007) Design optimization of Z-cut lithium, niobate electrooptic modulator with profiled metal electrodes and waveguides. Journal of Lightwave Technology, 25 (12). pp. 3722-3729. ISSN 0733-8724. (doi:10.1109/JLT.2007.909329) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:2760)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided.
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Abstract

Analysis and optimization of an ultra-high-speed Z-cut lithium niobate (LN) electrooptic modulator, operating at a high-frequency region, by using a full-wave finite-element numerical technique, has been demonstrated. Investigation of the effects of adjusting the buffer lay thickness, the electrode height, the electrode trapezoidal profile, and the waveguide trapezoidal profile on the microwave effective index N-m the characteristic, impedance Z(c) the microwave losses alpha(c) the half-wave voltage-length product V pi L has been reported. Optimization of these parameters yield to a novel design of the LN modulator, with a low V pi L and a high bandwidth, operating at a frequency range between 1 and 100 GHz. The frequency-dependent dispersion of the key device parameters, with the aim of determining the device suitability for high-speed operation, has been demonstrated.

Item Type: Article
DOI/Identification number: 10.1109/JLT.2007.909329
Uncontrolled keywords: electrooptic modulator; full wave; integrated optics; lithium niobate (LN); optical communications
Subjects: T Technology > TK Electrical engineering. Electronics. Nuclear engineering
T Technology > TK Electrical engineering. Electronics. Nuclear engineering > TK8300 Optoelectronic devices. Photoelectronic devices
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts
Depositing User: Suzanne Duffy
Date Deposited: 21 Apr 2008 07:57 UTC
Last Modified: 16 Nov 2021 09:41 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/2760 (The current URI for this page, for reference purposes)

University of Kent Author Information

Haxha, Shyqyri.

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