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Optical Engineering

Calcium barium niobate ridge waveguide on silicon substrate
Author(s): Ebrahim Mortazy; Irina Stateikina; Amirhossein Tehranchi; Sebastien Delprat; Mohamed Chaker; Ke Wu
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Paper Abstract

A novel optical ridge waveguide using calcium barium niobate (CBN) with a high electro-optic coefficient on silicon substrate is proposed for the design and realization of the next-generation hybrid modulators with short length and low driving voltage. To overcome the etching difficulty of CBN, the design of a waveguide, including an elevated CBN layer based on etched silicon dioxide, is presented. Fabrication of a thick 2.5-µm CBN layer is performed using pulsed laser deposition. Deposited silicon dioxide on the sides and top of the CBN reduces the waveguide loss as low as 3.44 dB/cm, measured using a cutback method. Good agreement between the mode profiles of the simulation and measurement is obtained.

Paper Details

Date Published: 1 July 2010
PDF: 3 pages
Opt. Eng. 49(7) 074601 doi: 10.1117/1.3463020
Published in: Optical Engineering Volume 49, Issue 7
Show Author Affiliations
Ebrahim Mortazy, École Polytechnique de Montréal (Canada)
Irina Stateikina, Institut National de la Recherche Scientifique (Canada)
Amirhossein Tehranchi, Ecole Polytechnique de Montréal (Canada)
Sebastien Delprat, Institut National de la Recherche Scientifique (Canada)
Mohamed Chaker, Institut National de la Recherche Scientifique (Canada)
Ke Wu, Ecole Polytechnique de Montréal (Canada)


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