Title :
Nonlinearly chirped grating based continuously tunable high notch rejection microwave photonic filter
Author :
Zhou, Junqiang ; Xia, Li ; Aditya, Sheel ; Ping, Perry Shum ; Parhusip, Babang Putra
Author_Institution :
Network Technol. Res. Centre, Nanyang Technol. Univ., Singapore, Singapore
Abstract :
We propose a continuously tunable high notch rejection microwave photonic filter which is based on a nonlinearly chirped fibre Bragg grating (NLCFBG). The filter response is caused by the dispersion induced by the NLCFBG and tunability is realized through changing the operating optical wavelength. Measured results demonstrating notch frequency tuning of 4.7 GHz with more than 45 dB notch rejection are presented.
Keywords :
Bragg gratings; chirp modulation; microwave filters; microwave photonics; notch filters; optical fibre dispersion; optical fibre filters; optical tuning; chromatic dispersion; continuously tunable high notch rejection microwave photonic filter; double sideband modulated signal; fibre Bragg grating; fibre dispersion; frequency 4.7 GHz; nonlinearly chirped grating; notch frequency tuning; Chirp; Gratings; Laser tuning; Microwave filters; Optical fiber filters; Optical filters; Optical modulation; Optical sensors; Optical signal processing; Tunable circuits and devices;
Conference_Titel :
Broadband Network & Multimedia Technology, 2009. IC-BNMT '09. 2nd IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-4590-5
Electronic_ISBN :
978-1-4244-4591-2
DOI :
10.1109/ICBNMT.2009.5347806
