Analogue Nyquist-filtering in DSP-less ONU for mitigation of bidirectional channel crosstalk in coherent PON

Spectral confinement of narrowly spaced up/downstream signals through brick-wall filtering enhances the crosstalk robustness of PONs. Experimental results at full-duplex 5Gb/s transmission show that analogue pulse shaping leads to a low 1.6dB penalty at unfiltered signal/crosstalk ratios of -10dB.

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Bibliographic Details
Published in2015 European Conference on Optical Communication (ECOC) pp. 1 - 3
Main Authors Schrenk, B., Humer, G., Pacher, C., Stierle, M., Leopold, H.
Format Conference Proceeding
LanguageEnglish
Published Viajes el Corte Ingles, VECISA 01.09.2015
Subjects
Crosstalk
Modulation
Optical attenuators
Optical crosstalk
Optical filters
Optical network units
Passive optical networks
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Summary:Spectral confinement of narrowly spaced up/downstream signals through brick-wall filtering enhances the crosstalk robustness of PONs. Experimental results at full-duplex 5Gb/s transmission show that analogue pulse shaping leads to a low 1.6dB penalty at unfiltered signal/crosstalk ratios of -10dB.
DOI:10.1109/ECOC.2015.7341847