Title :
New travelling-wave electrode Mach-Zehnder optical modulator with 20 GHz bandwidth and 4.7 V driving voltage at 1.52 mu m wavelength
Author :
Kawano, Katsumi ; Kitoh, Tsutomu ; Jumonji, H. ; Nozawa, Takuya
Author_Institution :
NTT Opto-Electron. Lab., Kanagawa, Japan
Abstract :
A wideband and low-driving voltage Ti:LiNbO3 Mach-Zehnder optical modulator of nearly 50 Omega characteristic impedance has been developed employing a shielded-phase-velocity-matching travelling-wave (TW) electrode. Both wide modulation bandwidth of 20 GHz (3 dB optical) and low driving voltage of 4.7 V were attained at 1.52 mu m wavelength.
Keywords :
integrated optics; lithium compounds; optical modulation; titanium; 1.52 micron; 20 GHz; 4.7 V; LiNbO 3:Ti; characteristic impedance; driving voltage; modulation bandwidth; shielded-phase-velocity-matching travelling-wave; travelling-wave electrode Mach-Zehnder optical modulator;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19890925
