Title :
75 GHz broadband Ti:LiNbO3 optical modulator with ridge structure
Author :
Noguchi, Keisuke ; Miyazawa, H. ; Mitomi, O.
Author_Institution :
NTT Opto-Electron. Labs., Kanagawa
fDate :
6/9/1994 12:00:00 AM
Abstract :
The authors propose a Ti:LiNbO3 optical modulator employing a ridge structure with a thick electrode. The structure offers a low microwave propagation loss and strong interaction between microwaves and optical waves under conditions of velocity matching and impedance matching, resulting in a large modulation bandwidth and low driving voltage. Using this device, the authors have developed an optical intensity modulator with a 3 dB optical bandwidth of 75 GHz and a driving voltage of 5.0 V at 1.5 μm
Keywords :
electro-optical devices; integrated optics; lithium compounds; optical communication equipment; optical modulation; optical waveguides; titanium; 1.5 micron; 5 V; 75 GHz; LiNbO3:Ti; broadband; impedance matching; intensity modulator; low driving voltage; low microwave propagation loss; modulation bandwidth; optical modulator; ridge structure; thick electrode; velocity matching;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19940646
