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Upstream phase modulation exploiting low cost reflective semiconductor optical amplifier (RSOA) at ONU is applied for simplified coherent detection through DFBs as local lasers at ONU and at OLT.
CitationChu, G. [et al.]. Exploiting RSOA for uplink transmission with coherent detection for low cost UDWDM-PON. A: Asia Communications and Photonics Conference. "Proceedings of the Asia Communications and Photonics Conference". Shangai: 2014.
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