Production of optical notch filters with fine parameter control using regenerated fiber Bragg gratings |
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Authors: | Marques Carlos A F de Oliveira Valmir Kalinowski Hypolito J Nogueira Rogério N |
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Institution: | Instituto de Telecomunica??es, Pólo de Aveiro, Aveiro, Portugal. cmarques@av.it.pt |
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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 adjustment 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. |
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