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28 January 2017 MPI investigation for 40G NRZ link with low-RL cable assemblies
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Bit Error Ratio (BER) dependence on received power was studied for 40Gb/s NRZ short optical fiber transmission, including a series of four low return loss (RL~21dB) and low insertion loss (IL~0.1dB) connections. The calculated power penalty (PP) was 0.15dB for BER~10-11. Although the fiber length was within DFB laser’s coherent length of ~100m and the multi path interference (MPI) value was 34.3dB, no PP of BER was observed. There was no PP due to low MPI probably because the polarization of the signal pulses were not aligned for optical interference, indicating that NRZ systems have a high resistance to MPI.
Conference Presentation
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Toshiaki Satake, Tatiana Berdinskikh, Rutsuda Thongdaeng, Pitak Faysanyo, and Michael Gurreri "MPI investigation for 40G NRZ link with low-RL cable assemblies", Proc. SPIE 10131, Next-Generation Optical Networks for Data Centers and Short-Reach Links IV, 101310F (28 January 2017);

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