Abstract
Recent progress on Si-based optical components for advanced optical communication systems has been demonstrated. The polarization beam splitter with extinction ratio of more than 20 dB and the optical 90-deg hybrid having phase deviation within ±5-deg were obtained using multimode interference structures. The 12 Gb/s modulators and the 20 GHz photodetectors were measured. Benefiting from the unique properties of silicon modulator, an error-free 80 Km transmission of the signals generated by our silicon carrier-depletion Mach-Zehnder modulator was also demonstrated at 10 Gb/s and the power penalty was as low as 1.15 dB. These results show that silicon photonics has a great potential in advanced optical communication systems.
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