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10-Gb/s, 4-channel wavelength division multiplexing fiber transmission using semiconductor optical amplifier modules

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5 Author(s)
Nakano, H. ; Hitachi, Ltd., Tokyo, Japan ; Tsuji, S. ; Sasaki, S. ; Uomi, K.
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A dense wavelength-division-multiplexing (WDM) transmission system with very-high-speed channels was investigated experimentally. A 10-Gb/s four-channel WDM optical transmission (total capacity of 40 Gb/s) over a 40-km dispersion-shifted fiber was achieved by using hybrid-integrated DFB-LD/driver modules for transmitters and two cascaded semiconductor optical amplifier (SOA) modules for receivers. The experiment confirmed that the SOA is applicable for WDM transmission systems with high bit rates because of its inherent wide bandwidth. The transmission capacity of 40 Gb/s, achieved using an intensity modulation/direct detection (IM/DD) scheme, is the highest ever reported. This technology will make possible ultralarge capacity (up to several-hundred gigabits per second) and long-haul transmission systems in the future

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Lightwave Technology, Journal of  (Volume:11 ,  Issue: 4 )