An all-optical radio-over-fiber (RoF) link with double spectral-efficient transmission and compensation of chromatic dispersion-induced power fading is proposed and experimentally demonstrated. At the central office, a commercial dual-polarization quadrature phase-shift keying modulator is utilized to produce a polarization-multiplexed signal composed of two modulated microwave vector signals and an unmodulated optical carrier. At the remote node, by adjusting the polarization controller to introduce a proper phase shift to the unmodulated optical carrier, the two vector signals can be demodulated respectively and dispersion-induced power fading can be compensated simultaneously. The link performance is evaluated by error vector magnitude and bit error rate.

中文翻译：

---

具有色散引起的功率衰减补偿的全光双光谱高效 RoF 链路

提出并实验证明了一种具有双频谱效率传输和色散引起的功率衰落补偿的全光光纤无线电 (RoF) 链路。在中心局，商用双偏振正交相移键控调制器用于产生由两个调制微波矢量信号和一个未调制光载波组成的偏振复用信号。在远端节点，通过调整偏振控制器对未调制光载波引入适当的相移，可以分别解调两个矢量信号，同时补偿色散引起的功率衰落。链路性能通过错误向量幅度和误码率来评估。