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Pluggable optics can potentiallly fuel the optical transport network in a more efficient and manageable manner. To enable this revolutionary packet-optical engine, integrated photonics seems to be the only possible solution. We introduce the latest industry trend of pluggable optical module form factors, and review the latest progress and challenges of pluggable optics products. Furthermore, we discuss...
Recently, CFP2 pluggable platforms are widely developed and deployed in 100 G optical networks for its flexibility, increased density, and reduced power consumption. For CFP2-ACO modules, they introduce high-speed analog electrical pluggable channels in line cards and generate additional performance degradation. To mitigate the effects of nonlinearity and limited bandwidth in transmitters, receivers,...
We study and compare impairments from coherent CFP2-ACO pluggable channels with flexible modulations. From experimental results, tolerance windows with PM-16-QAM are reduced significantly to 2.1/5.6/0.5-dB with attenuation/bandwidth/reflection impairments, comparing with 8.6/>10/4.5-dB from PM-QPSK.
IQ skew measurement of quadrature amplitude transmitter using reconfigurable interference is demonstrated with >20-dB dynamic range. The scheme is compatible with different modulation formats and patterns. Fast tracking scheme for large skew is discussed.
We propose reconfigurable optical add/drop multiplexing in a data link using orbital angular momentum (OAM) mode division multiplexing. Adding/dropping of one OAM mode from three multiplexed OAM modes, each carrying 100 Gbit/s QPSK data is demonstrated, with an OSNR penalty of <; 2dB.
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