Title :
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
fDate :
6/15/2010 12:00:00 AM
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;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2010.2047854
