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Bandpass multitap microwave photonic filter with a round‐trip configuration
Author(s) -
Ning G.,
Shum P.,
Aditya S.,
Cheng Linghao,
Dong H.
Publication year - 2008
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.23330
Subject(s) - band pass filter , microwave , polarization controller , polarization (electrochemistry) , filter (signal processing) , band stop filter , engineering , photonics , optics , physics , optoelectronics , electronic engineering , electrical engineering , telecommunications , optical fiber , low pass filter , fiber laser , chemistry
We propose a novel bandpass microwave photonic multitap filter configuration using a section of Hi‐Bi fiber in a round‐trip configuration. The configuration makes use of a chirped FBG both as a mirror and a dispersive device. Measured results are presented to show a two‐tap and three‐tap filter response, with a notch rejection greater than 35 dB and tunability of the level of secondary sidelobes by adjusting a polarization controller. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 1181–1184, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23330