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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 45, Iss. 11 — Apr. 10, 2006
  • pp: 2428–2436

Optoelectronic approach to adaptive radio-frequency transversal filter implementation with negative coefficients by using optical spectrum shaping

Muzammil A. Arain and Nabeel A. Riza  »View Author Affiliations


Applied Optics, Vol. 45, Issue 11, pp. 2428-2436 (2006)
http://dx.doi.org/10.1364/AO.45.002428


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Abstract

A multitap negative and positive coefficient radio-frequency transversal filter is implemented by using a digital-micromirror-device spatial light modulator for weighting-factor control and a chirped fiber Bragg grating for time-delay control. The demonstrated architecture is reconfigurable, has high speed and low loss, and is robust through digital programmability for a wide variety of filtering algorithms. A design using an interleaver for differential detection realizes an ultrahigh bandwidth with a maximum processable frequency of 33.7   GHz . A multitap low-pass filter, a negative tap notch filter with 40   dB attenuation, and a multitap negative coefficient bandpass filter are experimentally demonstrated. The results are in agreement with theory.

© 2006 Optical Society of America

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(070.1060) Fourier optics and signal processing : Acousto-optical signal processing

History
Original Manuscript: May 23, 2005
Revised Manuscript: September 14, 2005
Manuscript Accepted: November 5, 2005

Citation
Muzammil A. Arain and Nabeel A. Riza, "Optoelectronic approach to adaptive radio-frequency transversal filter implementation with negative coefficients by using optical spectrum shaping," Appl. Opt. 45, 2428-2436 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-11-2428


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