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Production of optical notch filters with fine parameter control using regenerated Fiber Bragg Gratings

Marques, C. ; Oliveira, V. ; Kalinowsky, H. ; Nogueira, R.N.

Optics Letters Vol. 37, Nº 10, pp. 1697 - 1699, May, 2012.

ISSN (print): 0146-9592
ISSN (online): 1539-4794

Journal Impact Factor: 3,772 (in 2008)

Digital Object Identifier:

Abstract
A new method to create a controlled notch filter for attenuation of signals based on regenerated fiber Bragg gratings is experimentally demonstrated. A fine adjust of the notch depth is achieved by controlling the time of regeneration
phenomenon in strongly saturated Bragg gratings written in standard ITU G.652 single-mode fiber. This method can used to produce tailored notch filters for several photonic applications, such as optical RF filtering, subcarrier processing or radio over fiber systems.