Analysis of FEL optical systems with grazing incidence mirrors
The use of grazing incidence optics in resonators alleviates the problem of damage to the optical elements and permits higher powers in cavities of reasonable dimensions for a free electron laser (FEL). The design and manufacture of a grazing incidence beam expander for the Los Alamos FEL mock-up has been completed. In this paper, we describe the analysis of a bare cavity, grazing incidence optical beam expander for an FEL system. Since the existing geometrical and physical optics codes were inadequate for such an analysis, the GLAD code was modified to include global coordinates, exact conic representation, raytracing, and exact aberration features to determine the alignment sensitivities of laser resonators. A resonator cavity has been manufactured and experimentally setup in the Optical Evaluation Laboratory at Los Alamos. Calculated performance is compared with the laboratory measurements obtained so far.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Applied Optics Research, Albuquerque, NM (USA)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 5770715
- Report Number(s):
- LA-UR-86-1298; CONF-860366-6; ON: DE86010184
- Resource Relation:
- Journal Volume: 0642; Conference: SPIE technical symposium on applications of artificial intelligence, Orlando, FL, USA, 31 Mar 1986; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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