A bandstop microwave photonic delay-line filter with both tunable stop-band rejection ratio and tunable frequency

Author

Weilin Liu ; Weifeng Zhang ; Jianping Yao

Author_Institution

Sch. of Electr. Eng. & Comput. Sci., Univ. of Ottawa, Ottawa, ON, Canada

fYear

2015

fDate

17-22 May 2015

Firstpage

1

Lastpage

3

Abstract

A two-tap bandstop microwave photonic delay-line filter with both tunable stop-band rejection ratio and tunable frequency is proposed and experimentally demonstrated. The stop-band rejection ratio is continuously tuned by adjusting the coefficients of the two taps via the tuning of a polarization controller and the center frequency of the stop band is continuously tuned by changing the optical wavelength to change the time delay difference between the two taps. The proposed rejection-tunable bandstop filter is experimentally demonstrated. A stop-band rejection ratio tunable from 0 to 37 dB and a tunable center frequency from 2.5 to 13 GHz is achieved.

Keywords

band-stop filters; delay lines; microwave filters; microwave photonics; frequency 2.5 GHz to 13 GHz; optical wavelength; polarization controller; tunable center frequency; tunable stop-band rejection ratio; two-tap band-stop microwave photonic delay-line filters; Frequency modulation; Microwave FET integrated circuits; Microwave filters; Optical polarization; Optical switches; Resonant frequency; Filters; microwave filters; microwave photonics;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium (IMS), 2015 IEEE MTT-S International

Conference_Location

Phoenix, AZ

Type

conf

DOI

10.1109/MWSYM.2015.7167063

Filename

7167063