Title :
Ultra-broadband and low-driving-voltage LiNbO3 optical modulators for optical transmission systems
Author :
Mitomi, Osamu ; Noguchi, Kazuto ; Miyazawa, Hiroshi
Author_Institution :
NTT Opto-Electron. Labs., Kanagawa, Japan
Abstract :
LiNbO3 electro optical modulators are attractive for high-speed and long-haul optical fiber transmission systems. To make a broader bandwidth LiNbO3 modulator, it is very important to optimize the modulator structure to achieve a low driving voltage under velocity-matching and impedance-matching conditions. A cross-sectional view of the proposed ridge-type LiNbO3 Mach Zehnder modulator with relatively thicker co-planar waveguide (CPW) electrodes (normal-type) is shown
Keywords :
broadband networks; coplanar waveguides; electro-optical modulation; high-speed optical techniques; impedance matching; integrated optics; lithium compounds; optical communication equipment; optical fibre networks; optical planar waveguides; ridge waveguides; LiNbO3; LiNbO3 electro optical modulators; LiNbO3 optical modulators; broader bandwidth LiNbO3 modulator; coplanar waveguide electrodes; cross-sectional view; high-speed long-haul optical fiber transmission systems; impedance-matching; low driving voltage; low-driving-voltage; modulator structure optimisation; optical transmission systems; ridge-type LiNbO3 Mach Zehnder modulator; ultra-broadband optical modulators; velocity-matching; Bandwidth; Buffer layers; Electrodes; Impedance; Optical buffering; Optical devices; Optical modulation; Optical waveguides; Testing; Wavelength measurement;
Conference_Titel :
Lasers and Electro-Optics Society Annual Meeting, 1995. 8th Annual Meeting Conference Proceedings, Volume 1., IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-2450-1
DOI :
10.1109/LEOS.1995.484534
