Novel tuneable filter based on MZ and an amplified ring resonator for OFDM networks
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A novel reconfigurable fibre based tuneable filter is proposed. The module relies on a cascaded connection of Mach-Zehnders and an amplified fibre ring resonator. MHz range adjustable FHWM bandwidths and high crosstalk are achieved.
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Vargas, Salvador; Vázquez, Carmen; Pena, José Manuel; Corredera, Pedro (07/28/2003)The device is based on a loop mirror in a ring resonator. The loop mirror allows tuning by changing the coupling coefficient of a directional coupler. The loop mirror is implemented using a Sagnac configuration to have the ...
Vargas, Salvador; Vázquez, Carmen (11/12/2007)We propose a new synthesis method for the implementation of infinite impulse response filters, using a Sagnac interferometer within a ring resonator. This structure permits the synthesis of second-order optical functions ...
Vargas, Salvador; Vásquez, Carmen (2010-07-02)We propose a novel synthesis method for designing flexible, tunable non-periodic filters. It is based on a building block which is presented by first time for these purposes, being the poles position tuned by means of a ...