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- Dual MZI-SOA with serial configuration for quadrature phase modulationPublication . Dionísio, Rogério Pais; Reis, Cláudia; Pavlovic, Natasa B.; Nogueira, Rogério; Teixeira, AntónioA novel generation scheme of QPSK format using dual MZI-SOA in serial configuration is presented. The feasibility of 20 Gb/s QPSK signal with coherent detection is experimentally shown.
- All-optical phase modulation using MZI-SOAPublication . Reis, Cláudia; Dionísio, Rogério Pais; Neto, Berta; André, P.S.; Teixeira, AntónioThis paper experimentally demonstrate an all-optical phase modulation technique using both arms of a Mach-Zehnder interferometer structure with Semiconductor Optical Amplifiers (MZI-SOA), with NRZ modulated signals driven at 10 Gbit/s. The proposed optical phase modulator can be used in multi-level modulation signals generation, as an optical routing element, as well in optical code division multiple access transmission systems.