Ultra-selective flexible add and drop multiplexer using rectangular optical filters based on stimulated Brillouin scattering.
Ultra-selective flexible add and drop multiplexer using rectangular optical filters based on stimulated Brillouin scattering.
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DOI：
10.1364/oe.23.019010
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发表时间：
2015-07
期刊：
影响因子：
3.8
通讯作者：
Wei Wei-Wei;L. Yi;Y. Jaouën;M. Morvan;Weisheng Hu
中科院分区：
文献类型：
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作者：
Wei Wei-Wei;L. Yi;Y. Jaouën;M. Morvan;Weisheng Hu
我们展示了一种超选择性灵活可重构的加丢复用器（ROADM）结构，该结构可实现多频段正交频分复用（MB-OFDM）信号的分离和聚合操作，频谱粒度为~2 ghz，保护频带为300 mhz。ROADM采用基于光纤中受激布里渊效应（SBS）的矩形光滤波器，通过两种不同的电反馈泵浦控制方法实现了该滤波器具有斜率、~ 1db的通带纹波和100mhz ~ 3ghz的可调带宽。ROADM的性能是用MB-OFDM信号的准相移键控（QPSK）和16正交调幅（16-QAM）格式来测量的。对于QPSK格式的信号，SBS-ROADM诱导的损耗为~0.7 dB，而对于16-QAM格式的信号，性能也可以接受。
We demonstrate an ultra-selective flexible reconfigurable add and drop multiplexer (ROADM) structure enablingseparation and aggregation operations for multi-band orthogonal frequency division multiplexing(MB-OFDM) signal with ~2-GHz spectral granularity and 300-MHz guard band. The ROADM employs rectangular optical filters based on stimulated Brillouin effect (SBS) in fiber, which have steepedges, ~1-dB passband ripple and tunable bandwidth from 100 MHz to 3 GHz realized by two different kinds of electrical feedback pump control approaches. The ROADM performance is measured with MB-OFDM signals inquadrature-phase-shift-keying (QPSK) and 16-quadrature-amplitude-modulation (16-QAM) formats. For QPSK format signal, the SBS-ROADM induced penalty is ~0.7 dB while the performance for 16-QAM format is also acceptable.