Title :
Multifunctional microwave photonic filter based on a single fibre Bragg grating
Author :
Luo, B. ; Dong, Junchen ; Yu, Yen-Ting ; Wang, Xiongfei ; Zhang, Xiaobing
Author_Institution :
Wuhan Nat. Lab. for Optoelectron., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
Multifunctional microwave photonic filters (MWPFs) have potential applications in flexible and various microwave signal processing. The authors propose and demonstrate a MWPF, including all-pass filter, band-pass filter and notch filter based on a single fibre Bragg grating. A high Q band-pass filter with a Q factor of 235 and a rejection ration exceeding 30 dB, and a notch filter with a flat top and a rejection ratio exceeding 25 dB are experimentally achieved.
Keywords :
Bragg gratings; Q-factor; all-pass filters; band-pass filters; microwave photonics; notch filters; optical fibre filters; MWPF; Q factor; all-pass filter; band-pass filter; multifunctional microwave photonic filter; notch filter; rejection ration; single fibre Bragg grating;
Journal_Title :
Optoelectronics, IET
DOI :
10.1049/iet-opt.2011.0062
