کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
462371 696755 2015 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Simplex-method based transmission performance optimization for 100G PDM-QPSK systems with non-identical spans
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر شبکه های کامپیوتری و ارتباطات
پیش نمایش صفحه اول مقاله
Simplex-method based transmission performance optimization for 100G PDM-QPSK systems with non-identical spans
چکیده انگلیسی


• We propose a simplex-method to improve the transmission performance for coherent optical systems with non-identical spans.
• This method not only improves the QoT to be above the requirement, but also minimizes the number of EDFA.
• The effectiveness of our strategy is proved through both theoretical calculation and numerical simulation.

A simplex-method based optimizing (SMO) strategy is proposed to improve the transmission performance for dispersion uncompensated (DU) coherent optical systems with non-identical spans. Through analytical expression of quality of transmission (QoT), this strategy improves the Q factors effectively, while minimizing the number of erbium-doped optical fiber amplifier (EDFA) that needs to be optimized. Numerical simulations are performed for 100 Gb/s polarization-division multiplexed quadrature phase shift keying (PDM-QPSK) channels over 10-span standard single mode fiber (SSMF) with randomly distributed span-lengths. Compared to the EDFA configurations with complete span loss compensation, the Q factor of the SMO strategy is improved by approximately 1 dB at the optimal transmitter launch power. Moreover, instead of adjusting the gains of all the EDFAs to their optimal value, the number of EDFA that needs to be adjusted for SMO is reduced from 8 to 2, showing much less tuning costs and almost negligible performance degradation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Fiber Technology - Volume 23, June 2015, Pages 48–52
نویسندگان
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