Transparent Fiber-Millimeter-Wave-Fiber System in 100-GHz Band Using Optical Modulator and Photonic Down-Conversion
Transparent Fiber-Millimeter-Wave-Fiber System in 100-GHz Band Using Optical Modulator and Photonic Down-Conversion
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使用光调制器和光子下变频的 100 GHz 频段透明光纤毫米波光纤系统
DOI：
10.1109/jlt.2022.3141058
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发表时间：
2022
影响因子：
4.7
通讯作者：
Kawanishi Tetsuya
中科院分区：
文献类型：
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作者：
Dat Pham Tien;Yamaguchi Yuya;Motoya Masayuki;Oikawa Satoshi;Ichikawa Junichiro;Kanno Atsushi;Yamamoto Naokatsu;Kawanishi Tetsuya
我们展示了第一个光纤毫米波光纤系统在100 GHz频段使用低损耗光调制器和直接光子下变频技术。利用低损耗光调制器将毫米波信号直接转换为光信号显著简化了毫米波无线电接收器，因为它仅包括无线电前端和光调制器。此外，通过采用直接光子下变频技术来同时检测毫米波信号并将其下变频到微波波段，可以大大简化光纤无线电接收机和后续的数字信号处理。使用所提出的技术，我们成功地传输32-/64-正交幅度调制正交频分复用和单载波信号的线速率为71.4 Gb/s和净数据速率为53.7 Gb/s的有线和无线融合系统，包括两个光纤链路和一个20米的无线电链路在101 GHz。该系统有望在5G网络之后实现高容量、低延迟和低功耗的光纤无线传输。
We demonstrate the first fiber–millimeter-wave–fiber system in the 100-GHz band using a low-loss optical modulator and direct photonic down-conversion technology. The utilization of a low-loss optical modulator for the direct conversion of a millimeter-wave signal to an optical signal significantly simplifies the millimeter-wave radio receiver because it includes only a radio front-end and an optical modulator. In addition, by adopting direct photonic down-conversion technology for simultaneous detection and down-conversion of the millimeter-wave signal to the microwave band, the fiber–radio receiver and subsequent digital signal processing can be considerably simplified. Using the proposed technologies, we successfully transmitted 32-/64-quadrature amplitude modulation orthogonal frequency division multiplexing and single-carrier signal with a line rate of 71.4 Gb/s and a net data rate of 53.7 Gb/s over a wired and wireless converged system consisting of two optical fiber links and a 20 m radio link at 101 GHz. The proposed system is promising for high-capacity, low-latency, and low-power consumption fiber-wireless transmission in beyond 5G networks.