Abstract
Many commercial laser systems deliver a beam having a Gaussian intensity profile, however, numerous applications require other intensity profiles (top-hat, hollow beam, Bessel beam,…) which are in general obtained by converting the standard Gaussian beam (GB) through transparent diffractive optical elements (DOE). Laser beam shaping (LBS) by use of DOE’s is a topic that has been intensively developed over a long time whether the DOE is programmable or unprogrammable. Although, DOE's are a great help to many LBS problems they have an inherent drawback which is a relatively high cost. Recently, we have experimentally demonstrated the LBS ability resulting from the coaxial superposition of two CW coherent Gaussian beams. This technique is classified under interferometric LBS techniques contrasting with the usual ones based on diffraction. In particular, we demonstrate the reshaping of a Gaussian beam into a bottle beam or flat-top beam in the focal plane of a focusing lens.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callSimilar Papers
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
