Jiang Wen-Jr, Lin Chun-Ting, Shih Po-Tsung, Chen Jason Jyehong, Peng Peng-Chun, Chi Sien
Department of Photonics and Institute of Electro-Optical Engineering, National Chiao Tung University, Hsinchu, Taiwan 300, ROC.
Opt Express. 2010 Feb 1;18(3):2710-8. doi: 10.1364/OE.18.002710.
This work demonstrates the feasibility of a full duplex Radio-over-fiber (RoF) link employing multi-level OFDM signal via a single-electrode Mach-Zehnder modulator and wavelength reuse for uplink utilizing a reflective semiconductor optical amplifier (RSOA). A High spectral efficiency 5-Gb/s 16-QAM OFDM signal with frequency multiplication for the RoF downstream link is demonstrated, and negligible penalty is achieved after 25-km standard single mode fiber transmission. Furthermore, wavelength reuse for a 1.25-Gb/s OOK signal via a RSOA for the upstream link is also demonstrated with a receiver penalty of less than 0.5 dB following 25-km SMF transmission.
这项工作展示了一种全双工光纤无线（RoF）链路的可行性，该链路通过单电极马赫曾德尔调制器采用多级正交频分复用（OFDM）信号，并利用反射半导体光放大器（RSOA）进行上行链路的波长复用。展示了一种用于RoF下行链路的具有倍频功能的高光谱效率5 Gb/s 16正交幅度调制（QAM） OFDM信号，并且在25千米标准单模光纤传输后实现了可忽略不计的代价。此外，还展示了通过RSOA实现1.25 Gb/s开关键控（OOK）信号在上行链路的波长复用，在25千米单模光纤传输后接收代价小于0.5分贝。
