Patent ID: 11860507
Assignee: NATIONAL TSING HUA UNIVERSITY
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 7:
8. A cascaded focusing and compressing postcompression method, comprising:
performing a pulse providing step to provide light pulses;
performing a CASCADE step to dispose at least one CASCADE module for focusing and compressing the light pulses, and comprising:
performing a focusing step to nonlinear broaden a bandwidth of the light pulses via a focusing unit of the at least one CASCADE module, wherein a light path of the light pulses passes through the focusing unit; and
performing a compressing step to shorten a pulse duration of the light pulses via a compressing unit of the at least one CASCADE module;
wherein the focusing unit comprises a medium, the medium is filled with a gas, and the light pulses propagate in and leave the medium in one single focusing geometry without wave guiding or multiple reflections.