High Extinction-Ratio Integrated Mach–Zehnder Modulator With Active Y-Branch for Optical SSB Signal Generation

Author

Ogiso, Yoshihiro ; Tsuchiya, Yuta ; Shinada, Satoshi ; Nakajima, Shinya ; Kawanishi, Tetsuya ; Nakajima, Hirochika

Author_Institution

Dept. of Appl. Phys., Waseda Univ., Tokyo, Japan

Volume

22

Issue

12

fYear

2010

fDate

6/15/2010 12:00:00 AM

Firstpage

941

Lastpage

943

Abstract

We propose a high extinction-ratio (ER) Mach-Zehnder modulator (MZM) with an active Y-branch optical intensity trimmer. In addition, we investigate a high ER integrated MZM for optical single-sideband (SSB) signal generation, where the active Y-branch trimmers are embedded in a dual-parallel MZM. Optical SSB generation with high suppression ratio of main carrier (47 dB) and undesired sidebands (>42 dB) is achieved by optimizing the optical amplitude imbalances corresponding to the ER.

Keywords

Mach-Zehnder interferometers; electro-optical modulation; integrated optics; active Y-branch optical intensity trimmer; high extinction-ratio integrated dual-parallel Mach-Zehnder modulator; optical amplitude imbalance; optical single-sideband signal generation; suppression ratio; Integrated optics; optical modulation; optical single-sideband (SSB) modulation; optical waveguides; optoelectronic devices;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2010.2047854

Filename

5447808