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Optimized filtering for 40-gb/s/ch-based DWDM transmission systems over standard single-mode fiber

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5 Author(s)
Hodzic, A. ; Tech. Univ. of Berlin, Germany ; Winter, M. ; Konrad, B. ; Randel, S.
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We show that the optimized optical filtering at the transmitter and receiver side is the key technology for the achievement of higher spectral efficiencies in 40-Gb/s-based dense wavelength-division-multiplexing (DWDM) systems. Through the improved filtering, the spectral efficiency of 0.8 b/s/Hz can be realized in DWDM systems independently on the used modulation format.

Published in:

Photonics Technology Letters, IEEE  (Volume:15 ,  Issue: 7 )