Upstream-FDMA/downstream-TDM optical fiber multiaccess network

T. Shiozawa, M. Shibutani, J. Namiki
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引用次数: 6

Abstract

The upstream-frequency-division-multiple access/downstream-time-division multiplexing (UFDMA/DTDM) optical multiaccess network is discussed. The system design for the proposed network is outlined. In this network, superluminescent diodes, which have a wide optical spectrum linewidth, are used as transmitter light sources in the network terminators to avoid optical beat interference. The carrier to noise ratio (CNR) and the dispersion power penalty are calculated to determine the channel capacity. For example, in the 1.5 mu m wavelength region. 800 Mb/s downstream channel capacity and 1.5 Mb/s upstream channel capacity are applicable for 32 network terminators and a 10 km optical fiber.<>
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上行- fdma /下行- tdm光纤多址网络
讨论了上行频分多址/下行时分多址(UFDMA/DTDM)光多址网络。概述了该网络的系统设计。在该网络中,使用具有宽光谱线宽的超发光二极管作为网络终端的发射光源,以避免光热干扰。通过计算载波噪声比(CNR)和色散功率惩罚来确定信道容量。例如,在1.5 μ m波长区域。32台网络终端和10km光纤的下行通道容量为800mb /s,上行通道容量为1.5 Mb/s。
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