High accuracy and fast acquisition time of polarisation nulling-based OSNR monitor

Floridia, Claudio; Rocha, Mônica de Lacerda; Moraes, Jean; Bezerra, E. W.

doi:10.1049/el.2010.2974

Cited by 5 publications

(2 citation statements)

References 4 publications

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“…Among the parameters to be monitored, one can mention the optical signal‐to‐noise ratio, differential group delay (DGD) and polarization mode dispersion (PMD), optical power, and the Q factor [1], ideally measured on a channel‐by‐channel basis. A number of techniques have been proposed and implemented to monitor subsets of these parameters, including inband OSNR, monitored by polarization extinction [2–4], and PMD [5, 6].…”

Section: Introductionmentioning

confidence: 99%

Simplified approach to low‐cost multiparameter monitoring based on low frequency polarization modulation

Floridia

Simoes

Bezerra

et al. 2012

Micro & Optical Tech Letters

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We experimentally revisit a technique of low‐cost multiparameter monitor for optical performance monitoring based on low frequency polarization modulation. A simplified calibration procedure, which significantly reduces the mathematical complexity and processing effort is proposed. Validation is achieved by carrying out relative optical power, wavelength, and differential group delay measurements. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1820–1824, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26956

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Section: Introductionmentioning

confidence: 99%

Simplified approach to low‐cost multiparameter monitoring based on low frequency polarization modulation

Floridia

Simoes

Bezerra

et al. 2012

Micro & Optical Tech Letters

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“…In previous papers, we have presented an implementation of the polarisation nulling method, which uses the downhill simplex (DS) algorithm for minimising the optical power readings, in order to improve the accuracy of the technique [5,6].…”

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Optimisation algorithms for OSNR measurement based on polarisation nulling

2015

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Optimisation algorithms are demonstrated as a nulling finder for an inband optical signal-to-noise ratio (OSNR) monitoring method based on polarisation extinction. The method was tested and validated in the Brazilian GIGA optical fibre testbed. When three optimisation techniques (genetic algorithm, particle swarm optimisation (PSO) and downhill simplex) were compared, PSO provided the best results regarding convergence time and nulling efficiency.

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