Premium
Microwave photonic filter with a tunable nonperiodic multiple passband frequency response
Author(s) -
Chan Erwin H. W.
Publication year - 2015
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.29024
Subject(s) - passband , band pass filter , brillouin scattering , high pass filter , filter (signal processing) , elliptic filter , bandwidth (computing) , frequency response , prototype filter , optics , microwave , optical filter , low pass filter , physics , electronic engineering , acoustics , materials science , computer science , optical fiber , engineering , telecommunications , electrical engineering
A microwave photonic filter that can realize a multiple nonperiodic passband frequency response is presented. It is based on stimulated Brillouin scattering in an optical fiber. The novelty of the filter is that, it has multiple passbands, which can be widely and independently tuned. The filter also has a very wide bandwidth, only limited by the system component bandwidths, as the frequency response is not periodic. Experimental results are presented demonstrating a bandpass filter with two or three widely tunable passbands. Investigations on the effects of adding or removing one passband and tuning one passband frequency to the other passbands are also presented. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:1089–1092, 2015