20-gb/s quaternary intensity modulation based on duobinary modulation with unequal amplitude in two polarizations
- 5 July 2006
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 18 (14) , 1482-1484
- https://doi.org/10.1109/LPT.2006.877588
Abstract
Two 10-Gb/s duobinary data streams are combined with unequal amplitudes and two orthogonal polarizations to generate a narrowband 20-Gb/s (10-Gbaud) quaternary intensity modulation. Sensitivity and chromatic dispersion tolerance of this modulation format, measured with a pseudorandom binary sequence 2/sup 7/-1, are -18.6 dBm and 530 ps/nm, respectively.Keywords
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