Title :
Low-drive-power asymmetric Mach-Zehnder modulator with band-limited operation
Author :
Zhou, Yi ; Izutsu, Masayuki ; Sueta, Tadasi
Author_Institution :
Dept. of Electr. Eng., Osaka Univ., Japan
fDate :
6/1/1991 12:00:00 AM
Abstract :
A novel 2×2 asymmetric Mach-Zehnder interferometric modulator is fabricated on Ti:LiNbO3 waveguide and tested at microwave frequency. Band-limited operation was realized by using a traveling-wave periodic polarity reversed structure with the asymmetric strip line as the modulator electrode instead of the conventional coplanar waveguide. For a modulator with a three-section polarity reversed electrode, a 3-dB bandwidth of 7 GHz was obtained experimentally from 9 to 16 GHz centered at 12 GHz
Keywords :
integrated optics; light interferometers; lithium compounds; optical communication equipment; optical modulation; optical waveguides; titanium; 7 GHz; LiNbO3:Ti; Ti:LiNbO3 waveguide; asymmetric Mach-Zehnder interferometric modulator; asymmetric strip line; band-limited operation; bandwidth; low drive power; microwave frequency; modulator electrode; three-section polarity reversed electrode; traveling-wave periodic polarity reversed structure; Arm; Bandwidth; Electrodes; Frequency; Optical interferometry; Optical modulation; Optical waveguides; Periodic structures; Strips; Testing;
Journal_Title :
Lightwave Technology, Journal of
