自由电子激光的种子激光聚焦与延迟装置及方法
By using a device to time-delay and spatially shape the seed laser, the problems of laser synchronization accuracy and spatial matching in the EEHG scheme were solved, achieving efficient high-order harmonic conversion, simplifying the system structure, and improving the stability and reliability of the free electron laser.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI ADVANCED RES INST CHINESE ACADEMY OF SCI
- Filing Date
- 2026-05-12
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing EEHG scheme, the synchronization accuracy requirements of the two independent seed lasers are stringent. Long-distance transmission makes spatial mode matching difficult, the system structure is complex, and the debugging and maintenance are difficult, which affects the stability and reliability of high repetition rate, fully coherent short wavelength free electron laser.
A seed laser focusing and delay device for free electron lasers is adopted. Time delay and spatial shaping are achieved through a single seed laser, simplifying the device structure and ensuring the spatiotemporal matching of the laser and the electron beam. Two-stage modulation can be achieved with only one seed laser.
It has achieved the generation of high repetition rate, fully coherent, and highly stable high-order harmonic X-ray free electron laser pulses, which simplifies the system structure, reduces debugging difficulty and operation and maintenance costs, and improves the stability and reliability of the system.
Smart Images
Figure CN122178177B_ABST