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We demonstrate hybrid 40-Gb/s and 100-Gb/s PDM-QPSK DWDM transmission using real-time DSP in 580-km DSF-installed field testbed. The nonlinear crosstalk penalty due to the hybrid transmission of less than 0.5 dB is confirmed.
We have developed 120-GHz-band wireless equipment that can transmit 10-Gbit/s data signal over a distance of more than 5 km. In order to increase the output power of the120-GHz-band wireless equipment, we used a millimeter-wave amplifier that integrates 0.08-μm-gate-length InGaAs/InP composite-channel high-electron-mobility transistors. The output power of the wireless equipment becomes 16 dBm. The...
In this paper, we present 10-Gbit/s wireless data transmission with FEC that is used for optical fiber data transmission. We evaluated the gains of coding by using a back-to-back data transmission system and compared them with those in outdoor data transmission experiments.
A novel automatic dispersion compensation system for WDM systems that is based on mode-splitting of tone-modulated CS-RZ signals is proposed and its compensation capability is demonstrated by 100 GHz spaced 8×43 Gbit/s WDM transmission.
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