All-Optical Transversal Filter With Tap Increasing and Negative Coefficients Based on Double-Pass Modulation

Author

Ou, Haiyan ; Zhu, Kun ; Ye, Chenhui ; Hu, Ying

Author_Institution

Inst. of Appl. Phys., Univ. of Elec tronic Sci. & Technol. of China, Chengdu, China

Volume

23

Issue

14

fYear

2011

fDate

7/15/2011 12:00:00 AM

Firstpage

938

Lastpage

940

Abstract

A novel microwave photonic filter with tap increasing and negative coefficients is proposed and experimentally demonstrated. The negative coefficient is achieved by employing a phase modulator, while the tap increasing is based on double-pass modulation of a Mach-Zehnder modulator (MZM). The experimental results demonstrated that stable five-tap bandpass filter characteristics can be obtained by using only one optical source. The experimental results of the proposed filters also show tunability and partial reconfigurability.

Keywords

band-pass filters; microwave photonics; optical filters; optical modulation; optical tuning; phase modulation; transversal filters; Mach-Zehnder modulator; all-optical transversal filter; double-pass modulation; five-tap bandpass filter; microwave photonic filter; negative coefficients; optical reconfigurability; optical source; optical tunability; phase modulator; tap increasing; Microwave filters; Microwave photonics; Optical fiber filters; Optical fibers; Microwave photonic filter; microwave photonics; photonic signal processing; tap increasing;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2011.2139200

Filename

5742973