All-Optical Conversion From RZ to NRZ Using Gain-Clamped SOA |
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| Authors: | T G Silveira A Teixeira G Tosi Beleffi D Forin P Monteiro H Furukawa N Wada |
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| Affiliation: | Siemens Networks S.A, Amadora; |
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| Abstract: | An all-optical converter from return-to-zero (RZ) pulses to the nonreturn-to-zero (NRZ) format is presented. The converter operates in two stages: the laser generated in a gain-clamped semiconductor optical amplifier (SOA) is modulated with the data signal; afterwards this signal is wavelength-converted by cross-gain modulation in a common SOA. The setup is noninverting and can feature wavelength conversion. Experimental error-free conversion from 5- and 40-ps RZ pulses to NRZ format is presented at 10 Gb/s using a 211-1 bit sequence |
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