Continuously tunable photonic RF filter

Author

Coppinger, F. ; Yegnanarayanan, S. ; Trinh, P.D. ; Julali, B.

Author_Institution

Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA

Volume

1

fYear

1996

fDate

18-21 Nov. 1996

Firstpage

334

Abstract

We have proposed and demonstrated a new continuously tunable photonic notch filter. A double tunability that combines an in-phase quadrature (I-Q) photonic phase shifter with a wavelength-selective true-time-delay, is used. The I-Q phase shifter continuously tunes the null frequency over a narrow range. Discrete shifts of null frequency are obtained by changing the optical wavelength in the wavelength-selective true-time-delay. The RF signal is carried by an intensity modulated tunable laser.

Keywords

biological techniques; biosensors; fibre optic sensors; fluorescence spectroscopy; laser applications in medicine; optical delay lines; optical filters; phase shifters; radiofrequency filters; spectrochemical analysis; tuning5601885; visible spectroscopy; I-Q phase shifter; RF signal; continuously tunable photonic RF filter; double tunability; in-phase quadrature photonic phase shifter; intensity modulated tunable laser; narrow range; null frequency; optical wavelength; photonic notch filter; wavelength-selective true-time-delay; Arm; Delay effects; Laser tuning; Optical attenuators; Optical fiber filters; Optical filters; Phase shifters; RF signals; Radio frequency; Tunable circuits and devices;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Society Annual Meeting, 1996. LEOS 96., IEEE

Conference_Location

Boston, MA, USA

Print_ISBN

0-7803-3160-5

Type

conf

DOI

10.1109/LEOS.1996.565269

Filename

565269