Flat-top shaped laser beams: Reliability of standard parameters

P. Di Lazzaro, S. Bollanri, D. Murra, E. Tefouet Kana, G. Felici

Research output: Contribution to conferencePaper

2 Citations (Scopus)

Abstract

We present experimental results of reshaping and making uniform the spatial energy distribution of raw beams respectively emitted by a low-coherence excimer laser and by a highly coherent diode pumped Nd-YAG laser. We used an optical system which is able to homogenize "bad beams" having strong local intensity spikes, and to modulate almost continuously the spot size of the homogenized beam along one or both axes in a fixed target plane. We have evaluated the results using the standard parameters described in the document of the International Organization for Standardization ISO 13694. We found that the reliability of the results is dependent both on the experimental setup and on the definition of the edge steepness and plateau uniformity of the quoted ISO document. Here we propose an amendment to the definition of these standard parameters that could improve their reliability.
Original languageEnglish
DOIs
Publication statusPublished - 2005
Externally publishedYes
EventXV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, GCL/HPL 2004 - , Czech Republic
Duration: 1 Jan 2005 → …

Conference

ConferenceXV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, GCL/HPL 2004
CountryCzech Republic
Period1/1/05 → …

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Di Lazzaro, P., Bollanri, S., Murra, D., Kana, E. T., & Felici, G. (2005). Flat-top shaped laser beams: Reliability of standard parameters. Paper presented at XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, GCL/HPL 2004, Czech Republic. https://doi.org/10.1117/12.611248