Optical performance monitoring technique using software-based synchronous amplitude histograms

Optical performance monitoring technique using software-based synchronous amplitude histograms. H. G. Choi, J. H. Chang, Hoon Kim, & Y. C. Chung Optics Express, 22(20):24024–24033, October, 2014.

Paper doi abstract bibtex

We propose and demonstrate a simple technique to monitor both the optical signal-to-noise ratio (OSNR) and chromatic dispersion (CD) by using the software-based synchronous amplitude histogram (SAH) analysis. We exploit the software-based synchronization technique to construct SAHs from the asynchronously sampled intensities of the signal. The use of SAHs facilitates the accurate extraction of the monitoring parameters at the center of the symbol. Thus, unlike in the case of using the technique based on the asynchronous amplitude histogram (AAH), this technique is not affected by the transient characteristics of the modulated signals. The performance of the proposed monitoring technique is evaluated experimentally by using 10-Gbaud quadrature phase-shift keying (QPSK) and quadrature amplitude modulation (QAM) signals over wide ranges of OSNR and CD. We also evaluate the robustness of the proposed technique to the signal’s transient characteristics.

@article{h._g._choi_optical_2014,
	title = {Optical performance monitoring technique using software-based synchronous amplitude histograms},
	volume = {22},
	copyright = {\&\#169; 2014 Optical Society of America},
	issn = {1094-4087},
	url = {https://www.osapublishing.org/oe/abstract.cfm?uri=oe-22-20-24024},
	doi = {10.1364/OE.22.024024},
	abstract = {We propose and demonstrate a simple technique to monitor both the optical signal-to-noise ratio (OSNR) and chromatic dispersion (CD) by using the software-based synchronous amplitude histogram (SAH) analysis. We exploit the software-based synchronization technique to construct SAHs from the asynchronously sampled intensities of the signal. The use of SAHs facilitates the accurate extraction of the monitoring parameters at the center of the symbol. Thus, unlike in the case of using the technique based on the asynchronous amplitude histogram (AAH), this technique is not affected by the transient characteristics of the modulated signals. The performance of the proposed monitoring technique is evaluated experimentally by using 10-Gbaud quadrature phase-shift keying (QPSK) and quadrature amplitude modulation (QAM) signals over wide ranges of OSNR and CD. We also evaluate the robustness of the proposed technique to the signal’s transient characteristics.},
	language = {EN},
	number = {20},
	urldate = {2018-10-26TZ},
	journal = {Optics Express},
	author = {{H. G. Choi} and {J. H. Chang} and {Hoon Kim} and {Y. C. Chung}},
	month = oct,
	year = {2014},
	keywords = {Amplified spontaneous emission, Erbium doped fiber amplifiers, Optical networks, Optical signals, Quadrature amplitude modulation, Signal transmission},
	pages = {24024--24033}
}

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