Premium
Continuously tunable incoherent microwave photonic filter using a tunable Mach‒Zehnder interferometer as the slicing filter
Author(s) -
Fu Hongyan,
Chen Daru,
Ou Haiyan,
He Sailing
Publication year - 2007
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.22732
Subject(s) - interferometry , filter (signal processing) , microwave , optical filter , slicing , mach–zehnder interferometer , photonics , materials science , free spectral range , optics , optoelectronics , physics , wavelength , computer science , telecommunications , engineering , electrical engineering , world wide web
A continuously tunable incoherent microwave photonic filter employing a tunable Mach‐Zehnder interferometer (MZI) as the slicing filter is studied. By incorporating the optical variable delay line (OVDL), the frequency spacing of the MZI can be tuned continuously, which in turn makes the whole microwave photonic filter continuously tunable in a wide frequency range. The frequency response characteristics are studied and some simulation results are also given to optimize the present microwave photonic filter. Experimental results show the present filter has good frequency response characteristics and tuning linearity. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 2382–2386, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22732