概括
一个新的混合电光接收器可以在光纤无线系统中直接转换复杂的中间频率 (IF) 信号. 这种创新的设计避免了图像干扰,并实现了16个Gbaud QPSK信号在142.8GHz的无错传输.
科学领域:
- 光电学是指光电子产品.
- 光学通信是指光学通信.
- 无线通信无线通信
背景情况:
- 光纤无线系统集成光纤和无线技术,用于高容量通信.
- 高效的电光接收器对于毫米波 (mmWave) 和太赫兹 (THz) 纤维无线系统至关重要.
- 传统的接收器在信号下降转换过程中面临着对联光谱和图像干扰的挑战.
研究的目的:
- 引入一种新的混合电光接收器设计,用于直接复杂的中间频率 (IF) 信号转换.
- 克服传统的实际价值IF加工和平衡混合器的局限性.
- 为了使光学单侧带调制无需光学过,并消除图像干扰.
主要方法:
- 直接连接电气I/Q混合器与光学I/Q调制器.
- 利用固有的I / Q直角性来保持信号完整性.
- 实现混合光电子通信系统架构.
主要成果:
- 证明了复杂的IF信号的直接电光转换.
- 在没有光学过的情况下实现光学单侧带调制.
- 通过2米无线链路和5公里单模式光纤在142.8GHz上成功传输了16个Gbaud正方位相位移关键 (QPSK) 信号,无误传输.
结论:
- 拟议的混合电光接收器有效地解决了光纤无线系统中的图像干扰问题.
- 这种设计可促进高频信号传输,并提高性能.
- 成功的演示验证了这种创新的光电子通信系统的潜力.
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