A hybrid WDM/OCDMA ring with a dynamic add/drop function based on Fourier code for local area networks.
A hybrid WDM/OCDMA ring with a dynamic add/drop function based on Fourier code for local area networks.
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一种混合WDM/OCDMA环，具有基于傅立叶码的动态分插功能，适用于局域网。
DOI：
10.1364/oe.19.006243
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发表时间：
2011
期刊：
影响因子：
3.8
通讯作者：
Chang
中科院分区：
文献类型：
--
作者：
Yong;K. Hosoya;Chung;M. Hanawa;Chang
我们提出并实验证明了一个混合WDM/OCDMA环的动态添加/删除功能的基础上傅立叶码的局域网。动态功能是通过机械调谐的傅立叶编码器/解码器的光码分多址（OCDMA）的编码/解码。利用波分复用（WDM）进行节点分配，并用4码片傅立叶码从码中恢复匹配信号。为了使光源能够很好地适应WDM信道及其短光脉冲的产生，反射式半导体光放大器（RSOA）与光纤布拉格光栅（FBG）一起使用并进行增益开关。为了证明这一点，我们在实验上研究了一个两节点的WDM/OCDMA混合环，该环采用四个FBG级联而成的四片傅立叶编/解码器，在1.25Gb/s速率下，节点跨度为10.64km，误码率（BER）<10（-9）。
We propose and experimentally demonstrate a hybrid WDM/OCDMA ring with a dynamic add/drop function based on Fourier code for local area networks. Dynamic function is implemented by mechanically tuning the Fourier encoder/decoder for optical code division multiple access (OCDMA) encoding/decoding. Wavelength division multiplexing (WDM) is utilized for node assignment and 4-chip Fourier code recovers the matched signal from the codes. For an optical source well adapted to WDM channels and its short optical pulse generation, reflective semiconductor optical amplifiers (RSOAs) are used with a fiber Bragg grating (FBG) and gain-switched. To demonstrate we experimentally investigated a two-node hybrid WDM/OCDMA ring with a 4-chip Fourier encoder/decoder fabricated by cascading four FBGs with the bit error rate (BER) of <10(-9) for the node span of 10.64 km at 1.25 Gb/s.