Title :
Reflection-type Mach-Zehnder LiNbO3 optical modulator with double-stub structure
Author :
Kawanishi, Tetsuyas ; Matsuo, Yoshikazu ; Izutsu, Masayuki
Author_Institution :
Commun. Res. Lab., Japan
Abstract :
In order to obtain low-driving-voltage band-operation optical modulators, we investigated a reflection-type Mach-Zehnder LiNbO3 optical modulator with double-stub structure. The double-stub structure consists of a modulating electrode and two stubs. The modulating electrode has two arms of the same length, and is an asymmetric coplanar waveguide (ACPW). A feeding line, which is a coplanar waveguide (CPW), is connected at the center of the modulating electrode. Two stubs, which are also CPWs of the same length, are also connected at the junction of the modulating electrode and the feeding line, so that we call it a double-stub structure.
Keywords :
Mach-Zehnder interferometers; coplanar waveguides; electro-optical modulation; light reflection; lithium compounds; optical planar waveguides; LiNbO3; asymmetric coplanar waveguide; double-stub structure; feeding line; low-driving-voltage band-operation; modulating electrode; reflection-type Mach-Zehnder LiNbO3 optical modulator; two stubs; Electrodes; Impedance; Optical modulation; Optical propagation; Optical reflection; Optical refraction; Optical variables control; Optical waveguides; Resonance; Voltage;
Conference_Titel :
Lasers and Electro-Optics Society, 2002. LEOS 2002. The 15th Annual Meeting of the IEEE
Print_ISBN :
0-7803-7500-9
DOI :
10.1109/LEOS.2002.1159566
