Observation of beam halo with corona graph. Objective lens Magnifier lens Opaque disk to block glare of central image Observation with normal telescope.
ELI-NP laser IP cavity 1)Requests 2)Recirculating cavity 1) biblio 2)limits 3)Fabry-Perot cavity solution a)Technical Contraints limits b)Possible solution.
Measurement of the laser beam profile at PSL to Mode Cleaner interface for the 40 Meter Prototype Interferometer A table of contents 1. Introduction 1.1.
