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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 2 — Jan. 23, 2006
  • pp: 581–586

All-optical WDM multi-tap microwave filter with flat bandpass

Borja Vidal, Juan L. Corral, and Javier Martí  »View Author Affiliations

Optics Express, Vol. 14, Issue 2, pp. 581-586 (2006)

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An incoherent photonic microwave filter implementing multiple positive and negative coefficients based on two sets of optical carriers and dispersive media is proposed and demonstrated. Positive and negative coefficients are obtained thanks to the π phase inversion in a single electro-optic Mach-Zehnder modulator as well as the modulator Vπ dependence with wavelength. To show the feasibility of this technique to implement practical filter transfer functions, the Parks-McClellan algorithm has been used to design a 5-tap flat bandpass filter. Experimental results show an excellent agreement with theory.

© 2006 Optical Society of America

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(070.6020) Fourier optics and signal processing : Continuous optical signal processing

ToC Category:
Fourier Optics and Optical Signal Processing

Borja Vidal, Juan L. Corral, and Javier Martí, "All-optical WDM multi-tap microwave filter with flat bandpass," Opt. Express 14, 581-586 (2006)

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