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We demonstrate a technique for optical performance monitoring by simultaneously identifying optical signal-to-noise ratio (OSNR), chromatic dispersion (CD), and polarization mode dispersion (PMD) using artificial neural networks trained with parameters derived from delay-tap asynchronous sampling.
We describe a transmitter being developed at the National Institute of Standards and Technology for calibrating extinction ratio measurements of optical receivers. Preliminary measurement results are presented, and major uncertainty components are discussed.
We experimentally demonstrate concatenated 4-fold 40-Gbit/s signal multicasting, 4-fold 40-to-160-Gbit/s multiplexing and subsequent 160-to-40-Gbit/s demultiplexing based on supercontinuum generation and cross-phase modulation in highly nonlinear fibers. 5-9 dB penalty at 10-9 BER was observed after the nonlinear processes.
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