Mach-Zehnder optical modulator using polariton propagation

Author

Hosomi, Kazuhiko ; Shirai, Masaka ; Katsuyama, Toshio

Author_Institution

Adv. Res. Lab., Hitachi Ltd., Tokyo, Japan

fYear

2000

fDate

2000

Firstpage

340

Lastpage

343

Abstract

We developed a Mach-Zehnder optical modulator based on propagation of a polariton, which is a composite quasi-particle formed by the coupling of an exciton and a photon. The modulation characteristics, measured at liquid-He temperature, showed an operation voltage of 0.7 V, which is extremely low in comparison with a conventional device. The corresponding extinction ratio was 11 dB. We also demonstrated the wavelength dependence of the modulation characteristics. These results suggest the possibility of developing high-performance polariton optical devices.

Keywords

Mach-Zehnder interferometers; electro-optical modulation; optical modulation; phonon dispersion relations; phonon-exciton interactions; polaritons; 0.7 V; Mach-Zehnder optical modulator; composite quasi-particle; extinction ratio; high-performance polariton optical devices; modulation characteristics; operation voltage; polariton propagation; wavelength dependence; Excitons; Extinction ratio; Optical coupling; Optical devices; Optical modulation; Optical propagation; Temperature measurement; Ultraviolet sources; Voltage; Wavelength measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Optoelectronic and Microelectronic Materials and Devices, 2000. COMMAD 2000. Proceedings Conference on

Print_ISBN

0-7803-6698-0

Type

conf

DOI

10.1109/COMMAD.2000.1022958

Filename

1022958