Photonic Generation of 3-D UWB Signal Using a Dual-Drive Mach-Zehnder Modulator

Author

Pan Cao ; Xiaofeng Hu ; Jiayang Wu ; Liang Zhang ; Xinhong Jiang ; Yikai Su

Author_Institution

Dept. of Electron. Eng., Shanghai Jiao Tong Univ., Shanghai, China

Volume

26

Issue

14

fYear

2014

fDate

July15, 15 2014

Firstpage

1434

Lastpage

1437

Abstract

We propose and experimentally demonstrate a new method to generate a 3-D ultrawideband (UWB) signal by utilizing a dual-drive Mach-Zehnder modulator (DDMZM). Three degrees of freedom of the generated 3-D UWB signal are pulse position, pulse phase, and pulse amplitude. In this scheme, each radio frequency (RF) port of the DDMZM is modulated by a combination of two encoded signals with different amplitudes. By properly adjusting the amplitudes of the encoded signals and the bias voltages of the two RF ports, a 5-Gb/s 3-D UWB signal with a central frequency of 3.5 GHz and a 10-dB fractional bandwidth of 163% is successfully generated by using only a single DDMZM.

Keywords

optical communication equipment; optical modulation; phase modulation; radio-over-fibre; ultra wideband communication; 3D UWB signal; DDMZM; RF ports; bias voltages; bit rate 5 Gbit/s; dual-drive Mach-Zehnder modulator; encoded signals; frequency 3.5 GHz; photonic generation; pulse amplitude; pulse phase; pulse position; radiofrequency port; ultrawideband signal; Optical amplifiers; Optical fibers; Phase modulation; Photonics; Radio frequency; Ultra wideband technology; Ultra wideband (UWB); pulse modulation; three-dimensional (3-D);

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2014.2326550

Filename

6819834