Title :
Deep Trenches in
: Experimental Demonstration of Modulator Extinction Ratio Enhancement
Author :
Pointel, Anne-Laure ; Ulliac, G. ; Pawela, Yvan ; Hauden, Jerome
Author_Institution :
R&D, Photline Technol., Besançon, France
Abstract :
We benefit from the recent progress on lithium niobate deep etching to enhance the extinction ratios of Mach-Zehnder modulators. We demonstrate that a proper trench placed in between parallel arms can lead to a 15 dB-increase without any additional losses at 1550 nm.
Keywords :
Mach-Zehnder interferometers; etching; lithium compounds; optical losses; optical modulation; LiNbO3; Mach-Zehnder modulator extinction ratio enhancement; deep trenches; lithium niobate deep etching; wavelength 1550 nm; Integrated optics; lithium niobate; microstructure; modulators; optical device fabrication;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2013.2270004