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Simultaneous Generation of Wired and Wireless Signals Using a DP-MZM in a RoF System
IEEE Photonics Technology Letters ( IF 2.6 ) Pub Date : 2020-08-01 , DOI: 10.1109/lpt.2020.3004381
Miao Kong , Wen Zhou , Junjie Ding , Weiping Li , Jianjun Yu

We experimentally demonstrate a simultaneous generation of independent 10-Gbit/s wired on/off keying (OOK) signal and 20-Gbit/s wireless quadrature phase shift keying (QPSK) signal by using a dual-polarization Mach–Zehnder modulator (DP-MZM) in a millimeter-wave-band radio-over-fiber system at 30 GHz. The polarization directions of two signals are orthogonal, so there is not any interference between two polarizations in the photodiode. By using a 100/200-GHz interleaver, the power penalty after 15-km fiber transmission for the wireless QPSK signal can be reduced from 3.9 to 1.9 dB. As we know, this is the first time to use QPSK modulation format for the wireless signal in the simultaneous generation and delivery of wireless and wired signals by using a dual-polarization modulator.

中文翻译:

在 RoF 系统中使用 DP-MZM 同时生成有线和无线信号

我们通过使用双极化 Mach-Zehnder 调制器 (DP-) 实验证明了同时生成独立的 10-Gbit/s 有线开/关键控 (OOK) 信号和 20-Gbit/s 无线正交相移键控 (QPSK) 信号。 MZM) 在 30 GHz 的毫米波频段光纤无线电系统中。两个信号的极化方向是正交的,因此光电二极管中的两个极化之间不存在任何干扰。通过使用 100/200-GHz 交织器,无线 QPSK 信号在 15 公里光纤传输后的功率损失可以从 3.9 分贝降低到 1.9 分贝。众所周知,这是第一次将QPSK调制格式用于无线信号,通过双极化调制器同时产生和传送无线和有线信号。
更新日期:2020-08-01
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