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自由电子激光器 Free Electron Lasers
来源: | 作者:莱速科技 | 发布时间: 2026-06-12 | 3 次浏览 | 🔊 点击朗读正文 ❚❚ ▶ | 分享到:

自由电子激光器 Free Electron Lasers

产品概述

自由电子激光器（FEL）是一类强辐射光源，也是分子尺度前沿科学研究的核心设备。其输出超短脉冲，可满足实验所需的时间分辨率与亚原子级空间分辨率。设备运行时，各类光电器件均需依照主时钟（系统射频基准信号）实现同步控制。整套装置的设备分布范围可达数千米，且同步精度要求达到飞秒级，技术门槛极高。


针对该场景，行业普遍采用光学定时分发系统，例如 Cycle 的 PULSE 系统。该方案在光域中传输定时信号，可保障长距离传输的稳定性。系统工作流程如下：首先通过 BOMPD 将射频信号加载至低噪声锁模激光器（光学主振荡器）；激光信号经由相位稳定型保偏（PM）光纤链路分发至各个终端。光纤网络搭载由光延迟线与 BOC 构成的反馈回路，可实时补偿传输时延波动。在远端节点，压控振荡器与另一组 BOMPD 配合，输出低噪声微波信号。


在中国大连，相干光源（DCLS）已落地该套方案，系统射频定时信号的均方根（RMS）时间抖动控制在 20 fs 以内。该自由电子激光装置依托 BOMPD 实现射频信号与光定时信号的相互转换，支撑高精度实验开展，助力分子动力学领域的相关研究。

应用案例

欧洲空间局（ESA）、SACLA

参考文献

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