Photonic Generation of Ultrawideband Signals With Large Carrier Frequency Tunability Based on an Optical Carrier Phase-Shifting Method

Author

Wei Li ; Li Xian Wang ; Jian Yu Zheng ; Ming Li ; Ning Hua Zhu

Author_Institution

State Key Lab. on Integrated Optoelectron., Beijing, China

Volume

5

Issue

5

fYear

2013

fDate

Oct. 2013

Firstpage

5502007

Lastpage

5502007

Abstract

We theoretically and experimentally demonstrated a novel photonic approach to generating ultrawideband (UWB) pulses with large carrier frequency tunability based on an optical carrier phase-shifting technique by cascading polarization modulators (PolMs) and a polarizer. The UWB pulses are generated by truncating a continuous wave (CW) RF signal into a pulsed signal in a photodetector (PD). The experimental results show that the baseband frequency components and the strong residual local oscillator (LO) signal are well suppressed. In addition, the generated UWB signals satisfy the Federal Communications Commission (FCC) spectral mask very well.

Keywords

microwave photonics; optical modulation; optical polarisers; optical tuning; UWB pulses; baseband frequency components; carrier frequency tunability; optical carrier phase-shifting method; polarization modulators; polarizer; residual local oscillator; ultrawideband signal photonic generation; Optical filters; Optical mixing; Optical modulation; Optical polarization; Optical pulses; Photonics; RF signals; Ultrawideband (UWB); microwave photonics;

fLanguage

English

Journal_Title

Photonics Journal, IEEE

Publisher

ieee

ISSN

1943-0655

Type

jour

DOI

10.1109/JPHOT.2013.2284260

Filename

6617671