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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 5 — Mar. 1, 2013
  • pp: 802–804

Tunable multitap microwave photonic filter with all complex coefficients

Yamei Zhang and Shilong Pan  »View Author Affiliations


Optics Letters, Vol. 38, Issue 5, pp. 802-804 (2013)
http://dx.doi.org/10.1364/OL.38.000802


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Abstract

Architecture for the implementation of a tunable multitap microwave photonic filter (MPF) with all complex coefficients is proposed and demonstrated. The complex coefficients are realized by 360° tunable photonic microwave phase shifters based on single-sideband polarization modulation. The polarization modulator, wavelength-division multiplexers, polarizer, and photodetector required for achieving the tunable phase shift are shared by all taps. Only a polarization controller is required in each tap to adjust each phase shift independently, making the system simple and compact. A proof-of-concept experiment is performed. A four-tap MPF with full free spectral range tunability and adjustable filter shape is realized.

© 2013 Optical Society of America

OCIS Codes
(050.5080) Diffraction and gratings : Phase shift
(070.1170) Fourier optics and signal processing : Analog optical signal processing
(350.4010) Other areas of optics : Microwaves

ToC Category:
Fourier Optics and Signal Processing

History
Original Manuscript: January 4, 2013
Manuscript Accepted: January 24, 2013
Published: March 1, 2013

Citation
Yamei Zhang and Shilong Pan, "Tunable multitap microwave photonic filter with all complex coefficients," Opt. Lett. 38, 802-804 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-5-802

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