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Fiber grating filter for WDM systems: an improved design

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3 Author(s)
Carballar, A. ; Tecnologia Fotonica, Ciudad Univ., Madrid, Spain ; Muriel, M.A. ; Azafi, J.

We report on a novel technique for the design of fiber gratings whose reflection characteristic closely approximates the ideal rectangular linear phase filter. The technique is based on the design of a suitable grating period variation, following the apodization function, in order to ensure the Bragg condition to remain constant along the grating length.

Published in:

Photonics Technology Letters, IEEE  (Volume:11 ,  Issue: 6 )