Impact of Intercore Crosstalk on the Transmission Distance of QAM Formats in Multicore Fibers
Impact of Intercore Crosstalk on the Transmission Distance of QAM Formats in Multicore Fibers
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DOI：
10.1109/jphot.2016.2523993
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发表时间：
2016-04-01
影响因子：
2.4
通讯作者：
Wada, N.
中科院分区：
文献类型：
--
作者：
Puttnam, B. J.;Luis, R. S.;Wada, N.
我们研究了三种正交幅度调制（QAM）格式的可实现的传输距离上的核心间串扰的影响。我们表明，从-43.4 dB/100 km开始，在18 dB范围内增加核间串扰会降低所有格式的可实现传输距离，对高阶调制格式的影响更大。对于由均匀7芯光纤的每个芯中的相等信号发射功率引起的串扰水平，我们测量了在BER = 1.5 x 10（-2）时，对于偏振分复用正交相移键控（PDM-QPSK）、PDM-16 QAM和PDM-64 QAM，分别减少了24%、38%和54%的传输距离。最后，我们研究了动态串扰变化在基于多芯光纤的传输系统中可能产生的潜在影响，并估计了在存在动态变化的芯间串扰的情况下1 x 10（-5）的中断概率的可达到范围。
We investigate the impact of intercore crosstalk on the achievable transmission distance of three square quadrature amplitude modulation (QAM) formats. We show that increasing intercore crosstalk across an 18 dB range starting from -43.4 dB/100 km reduces the achievable transmission distance for all formats, with a greater impact on higher order modulation formats. For a crosstalk level arising from equal signal launch power in each core of a homogeneous 7-core fiber, we measure a reduced transmission distance at BER = 1.5 x 10(-2) of 24%, 38% and 54%, for polarization-division-multiplexed-quadrature phase-shift keying (PDM-QPSK), PDM-16QAM, and PDM-64QAM, respectively. Finally, we investigate the potential impact that dynamic crosstalk variation could have in transmission systems based on multicore fiber and estimate the achievable reach for an outage probability of 1 x 10(-5) in the presence of dynamically varying intercore crosstalk.