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Tunable and reconfigurable microwave photonic filter implemented by cascaded mach-zehnder modulators and a dispersive medium
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2008 (English)In: Proceedings of SPIE - The International Society for Optical Engineering, 2008Conference paper, Published paper (Refereed)
Abstract [en]

A novel tunable and reconfigurable microwave photonic filter based on two cascaded Mach-Zehnder modulators (MZMs) and a dispersive medium is presented, theoretically discussed and experimentally demonstrated. A single-wavelength laser diode (LD) and the first MZM are used to obtain a multi-wavelength optical source, and the second MZM is modulated with the signal to be processed. The dispersive medium provides the time delay for different taps, since different wavelength experiences different time delay, when it travels in the optical fiber. By adjusting the modulation frequency and the bias voltage on the first MZM, the wavelength spacing and the relative amplitude of the optical tones after the first MZM can be changed, thus making the filter tunable and reconfigurable. The presented microwave photonic filter has been implemented in the experiment. The experimental results agree well with the simulation results, and show that the present microwave photonic filter has good tunability and reconfigurability. The mainlobe-to-sidelobe ratio (MSR) of around 25dB is achieved for the presented filter in the experiment.

Place, publisher, year, edition, pages
2008.
Series
Proceedings of SPIE - The International Society for Optical Engineering, ISSN 0277-786X ; 7136
Keyword [en]
Dispersive medium, Mach-zehnder modulator, Microwave photonic filter, Multi-wavelength optical source, Optical carrier suppression, Radio-over-fiber systems, Beam propagation method, Light transmission, Microwave filters, Microwaves, Modulation, Optical fibers, Optical filters, Polarization, Time delay, Ultrashort pulses, Wavelength, Light modulators
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Identifiers
URN: urn:nbn:se:kth:diva-154185DOI: 10.1117/12.804267Scopus ID: 2-s2.0-62449183651OAI: oai:DiVA.org:kth-154185DiVA: diva2:755631
Conference
Optical Transmission, Switching, and Subsystems VI, 27 October 2008 through 30 October 2008, Hangzhou
Note

QC 20141015

Available from: 2014-10-15 Created: 2014-10-14 Last updated: 2014-10-15Bibliographically approved

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He, Sailing

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf