Abstract To avoid the Rayleigh backscattering (RB) beat noise in colorless wavelength division multiplexing (WDM) access architecture, the dual-band modulation diagram is proposed for demonstration. In the study, 11.25 Gbit/s orthogonal frequency division multiplexing (OFDM) wireless downstream and 2.5 Gbit/s remodulated on–off keying (OOK) upstream traffic are achieved by using same wavelength. Moreover, the bit error rate (BER) measurements of wireless downstream and wired upstream wavelengths are also executed and discussed after 20 km fiber connection.

中文翻译：

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在无色接入网络中将单波长用于 OFDM 无线下行和重新调制的 OOK 上行以减轻瑞利反向散射噪声

摘要 为避免无色波分复用（WDM）接入架构中的瑞利背向散射（RB）拍频噪声，提出双频调制图进行演示。在研究中，11.25 Gbit/s 正交频分复用 (OFDM) 无线下行流量和 2.5 Gbit/s 重新调制开关键控 (OOK) 上行流量是通过使用相同波长实现的。此外，无线下行和有线上行波长的误码率 (BER) 测量也在 20 公里光纤连接后执行和讨论。