All-optical implementation of tunable low-pass, high-pass, and bandpass optical filters using ring resonators

Basic units for realization of all-pole and all-zero transfer functions in all-optical systems using ring resonators and electromagnetic-induced transparency (EIT) are introduced. Using the basic blocks for generation of pole and zero proposed Any type and any degree of optical filters and optical p...

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Bibliographic Details
Published inJournal of lightwave technology Vol. 23; no. 1; pp. 446 - 460
Main Authors Rostami, A., Rostami, G.
Format Journal Article
LanguageEnglish
Published IEEE 01.01.2005
Subjects
All-optical systems
Digital filters
electromagnetic-induced transparency (EIT)
Fiber nonlinear optics
High speed optical techniques
Holography
Nonlinear optics
Optical design
Optical filters
Optical ring resonators
Optical signal processing
pole and zero
Poles and zeros
tunable optical filter
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Summary:Basic units for realization of all-pole and all-zero transfer functions in all-optical systems using ring resonators and electromagnetic-induced transparency (EIT) are introduced. Using the basic blocks for generation of pole and zero proposed Any type and any degree of optical filters and optical processing systems can be implemented. In this paper, z transform is used for design and synthesize of low-pass, bandpass, and high-pass Butterworth optical filters as an example. The stability of optical systems designed by the proposed structures is investigated. In addition, EIT is used for the control of pole and zero position.
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2004.834829