1.25–3.125 Gb/s per user PON with RSOA as phase modulator for statistical wavelength ONU

We report a new scheme to support, cost efficiently, ultra-dense wavelength division multiplexing (UDWDM) for optical access networks. As validating experiment, we apply phase modulation of a reflective semiconductor optical amplifier (RSOA) at the ONU with a single DEB, and simplified coherent rece...

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Bibliographic Details
Published in:Optics communications 2015-12, Vol.357, p.34-40
Main Authors: Chu, Guang Yong, Polo, Victor, Lerín, Adolfo, Tabares, Jeison, Cano, Iván N., Prat, Josep
Format: Article
Language:English
Subjects:
Amplitude
Chirp
Coherent communications
Enginyeria de la telecomunicació
Fiber Optics Communications
Fiber optics links and subsystems
Fibres òptiques
Frequency
Multiplexatge per divisió de freqüència
Optical fiber communication
Phase modulation
Telecomunicació òptica
Wavelength division multiplexing
Àrees temàtiques de la UPC
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Summary:We report a new scheme to support, cost efficiently, ultra-dense wavelength division multiplexing (UDWDM) for optical access networks. As validating experiment, we apply phase modulation of a reflective semiconductor optical amplifier (RSOA) at the ONU with a single DEB, and simplified coherent receiver at OFT for upstream. We extend the limited 3-dB modulation bandwidth of available uncooled To-can packaged RSOA (similar to 400 MHz) and operate it at 3.125 Gb/s with the optimal performance for phase modulation using small and large signal measurement characteristics. The optimal condition is selected at input power of 0 dBm, with 70 rnA bias condition. The sensitivities at 3.125 Gbis (at BER=10(-3)) for heterodyne and intradyne detection reach -34.3 dBm and -38.8 dBm, respectively. Peer Reviewed
ISSN:0030-4018
DOI:10.1016/j.optcom.2015.08.046