对传输电信信号对基于LOCSET的连贯光束组合传输的影响的实验研究
Optics express
|September 15, 2023
概括
这项研究展示了一种新型激光发射器,使用连贯束组合 (CBC) 通过自由空间光学传输10.66Gb/s的电信信号. 关键发现强调了相标记调制深度和光路径差异对于数据传输质量至关重要.
科学领域:
- 光学和光子学 在光学和光子学.
- 光学通信是指光学通信.
- 自由空间光学自由空间光学
背景情况:
- 连贯光束组合 (CBC) 对于高功率激光系统至关重要.
- 自由空间光通信需要强大的信号传输方法.
- 将电信信号与CBC集成提出了独特的挑战.
研究的目的:
- 实现和分析基于CBC的激光发射器,用于自由空间光通信.
- 研究使用NRZ和DPSK调制的10.66Gb/s电信信号的传输.
- 确定影响CBC系统数据传输质量的关键参数.
主要方法:
- 在实验室环境中实施CBC激光发射器.
- 测试非归零 (NRZ) 和差分相位变换 (DPSK) 调制的测试.
- 使用相位标记技术 (LOCSET) 进行信号锁定,其余相位误差为 < λ/60 RMS.
- 信号的放大使用三个光纤放大器,每一个最多3W.
主要成果:
- 成功演示了一种基于CBC的激光发射器,携带10.66Gb/s的电信信号.
- 使用LOCSET技术实现了高精度的相位锁定 (< λ/60 RMS).
- 确定了相标记调制深度和光路径差异作为数据传输的关键参数.
结论:
- 该研究介绍了基于CBC的激光器用于自由空间光学电信信号的首次实现之一.
- 优化相标记调制深度和光路径差异对于可靠的数据传输至关重要.
- 这项工作促进了高速数据传输与高功率连贯光束组合技术的整合.
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