高斯-谢尔模型脉冲的连贯检测性能:时间连贯性,脉冲宽度和光路径差异的影响
Optics express
|November 11, 2025
概括
本研究探讨了对部分时间连贯脉冲的连贯激光检测. 性能取决于时间连贯性,脉冲宽度和光路径差异,为遥感和自由空间通信提供准则.
科学领域:
- 光学和光子学 在光学和光子学.
- 激光物理 激光物理
- 信号处理 信号处理
背景情况:
- 一致的激光检测对于光通信和遥感至关重要.
- 部分时间连贯的脉冲对传统的检测方法构成挑战.
- 高斯-谢尔模型 (GSM) 描述了部分连贯的光.
- 具有高斯光谱配置的连续波 (CW) 激光器是常见的局部振荡器 (LO).
研究的目的:
- 理论上研究连贯激光检测性能部分时间连贯脉冲.
- 建立一个理论框架,用于连贯检测脉冲,部分连贯的光.
- 扩展现有的干扰测量技术用于脉冲激光表征.
主要方法:
- 一致检测的理论分析.
- 基于高斯-谢尔模型 (GSM) 的数值模拟.
- 为脉冲激光器扩展延迟的自我异极干扰测量 (DSHI).
主要成果:
- 信号与噪声比 (SNR) 和光谱线宽极其依赖于时间连贯性.
- 脉冲宽度和光路径差异 (OPD) 显著影响检测性能.
- 建立的框架准确地模拟了部分连贯脉冲的连贯检测.
结论:
- 时间连贯性是脉冲激光器连贯检测性能的一个关键因素.
- 研究结果为优化远程传感和自由空间通信等应用程序中的系统参数提供了指导方针.
- 扩展的DSHI框架允许对脉冲激光器进行时间连贯性表征.
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