A novel scheme of high bit rate optical FSK transmitter

摘要

We propose a novel scheme of high bit rate optical frequency shift-keying transmitter. Base on the periodic notch spectral properties of Mach-Zehnder delay interferometer and the carrier suppressing functionality of Mach-Zehnder modulator, a high-speed optical FSK signal can be simply generated with another phase modulator and a single wavelength laser source. The transmission characteristics of this FSK signal are investigated under varying dispersion management. Simulated results show that 40Gb/s FSK signal gives only ldB penalty after 80 km SMF transmission link under the post-compensation management scheme.