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We demonstrate a record high output power 10 W, 100 fs 10 GHz pulse train using an all-fiber MOPA system at 1562 nm with a high-power EDFA and 1480 nm cascaded Raman laser pumping.
We have successfully generated a 380 fs pulse train at 40 GHz from an actively mode-locked erbium fiber laser with an InGaAlAs/InAlAs MQW nonlinear PM/AM modulator using the Pockels effect and the quantum confined Stark effect.
We demonstrate a 400-Gbit/s frequency-division-multiplexed and polarization-multiplexed OFDM transmission over 400 km (5×80 km SSMF) with 256 QAM subcarrier modulation using an optical PLL. A record spectral efficiency of 14 bit/s/Hz was successfully achieved.
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