Title

Optoelectronic Approach To Adaptive Radio-Frequency Transversal Filter Implementation With Negative Coefficients By Using Optical Spectrum Shaping

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.

Publication Date

4-10-2006

Publication Title

Applied Optics

Volume

45

Issue

11

Number of Pages

2428-2436

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1364/AO.45.002428

Socpus ID

33744489893 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/33744489893

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