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We present and compare experimental results for electrical and photonic generation of 2-Gb/s pulses for impulse radio ultra-wideband on fiber transmission systems based on direct current modulation of a semiconductor laser diode and external optical injection of a semiconductor laser diode, respectively. We assess the performance of the two generation approaches in terms of bit-error rate after propagation...
A 32.1 Gbit/s RZ-D8PSK modulated signal was transmitted through 160 km SSMF with optical phase conjugation after 80 km. The phase conjugation was performed by four wave mixing.
We experimentally demonstrate a colorless receiver for optically labelled DQPSK payload signals enabling crossconnect interfacing nodes between the metro and access network segments.
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