Superposed WDM fiber grating unit for sh
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G. W. Yoffe; K. E. Alameh; R. A. Minasian
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Article
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2000
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John Wiley and Sons
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English
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A new technique for generating extremely small time-delay steps as a function of waยจelength is presented. The fiber unit comprises oยจerwritten gratings at different Bragg waยจelengths with ยจarying coupling coefficients, and hence ยจarying effectiยจe reflection points. The shortest delay step demonstrat