Artículo
Temperature-Robust Monitoring of TDM-PONs Through Optical Coding Assisted by Broadband $\lambda$-Tunable I-OFDR
Fernández, Manuel Pablo
; Morbidel, Leonardo; Bulus Rossini, Laureano Andrés
; Costanzo Caso, Pablo Alejandro
Fecha de publicación:
07/2021
Editorial:
Institute of Electrical and Electronics Engineers
Revista:
Journal Of Lightwave Technology
ISSN:
0733-8724
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We present a technique for remote monitoring of time-division multiplexed passive optical networks (TDM-PONs) based on fiber Bragg grating (FBG) encoders interrogated by a broadband incoherent optical frequency-domain reflectometer (I-OFDR). Compared with previous approaches, the proposed system features inherent high robustness against temperature-induced wavelength shifts in the FBG-encoders. The I-OFDR-based monitoring unit enables measurements with high resolutions and sensitivities without the need for high peak-power monitoring signals, which minimizes its footprint on the data links. We carry out a comprehensive description of the system and we evaluate its capacity in terms of signal-to-interference ratio (SIR). We show that, through suitable windowing, a SIR ≥ 20 dB can be achieved in highly-dense TDM-PONs having more than 128 customers through the use of moderate measurement bandwidths of 300 MHz. We experimentally demonstrate the proposal in a TDM-PON carrying a 10 Gbps downstream data signals, obtaining a negligible impact in the downlink performance, such as the bit error rate remains below 10-6 .
Palabras clave:
redes ópticas
,
PON
,
sensores ópticos
,
fibra óptica
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Articulos(CCT - PATAGONIA NORTE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Citación
Fernández, Manuel Pablo; Morbidel, Leonardo; Bulus Rossini, Laureano Andrés; Costanzo Caso, Pablo Alejandro; Temperature-Robust Monitoring of TDM-PONs Through Optical Coding Assisted by Broadband $\lambda$-Tunable I-OFDR; Institute of Electrical and Electronics Engineers; Journal Of Lightwave Technology; 39; 14; 7-2021; 4607-4613
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