概括
我们开发了一种简单的,独立于偏振的连贯检测方法,使用电吸收调制激光 (EML) 接收器. 这种具有成本效益的解决方案非常适合短到中距离的光通信系统.
科学领域:
- 光学通信是指光学通信.
- 摄影工程工程 摄影工程
- 信号处理 信号处理
背景情况:
- 连贯检测提供高灵敏度,但通常需要极化多样性.
- 具有成本敏感性的中短距离应用需要更简单的,独立于偏振的解决方案.
- 电吸收调制激光器 (EML) 正在成为具有成本效益的连贯接收器组件.
研究的目的:
- 提出和演示一个简单的偏振独立的连贯检测方案.
- 为了使低成本的光学收发器适用于短到中距离的应用.
- 为了利用EML在连贯接收器中任意输入极化状态.
主要方法:
- 利用在双极化发射器中生成的阿拉穆蒂编码信号.
- 采用电吸收调制激光 (EML) 作为连贯接收器.
- 采用双极化光学载体实现注射锁定,用于稳定的局部振荡器.
- 应用相位调制到一个极化状态以减轻载体色.
主要成果:
- 成功演示了一个独立于偏振的连贯接收器.
- 通过注射锁定实现了稳定的局部振荡器生成.
- 通过使用8GBaud正方位相位转换 (QPSK) 单侧频段信号验证了该方案的性能.
- 通过80公里的光纤传输信号,证实了基于EML的连贯检测可行性.
结论:
- 拟议的方案提供了一个简单且具有成本效益的偏振独立连贯检测解决方案.
- 基于EML的连贯接收器适用于光网络中的任意极化状态.
- 这项技术促进了连贯的检测,以便在短到中程光学系统中广泛采用.
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