Open AccessContinuous axial scanning of a Gaussian beam via beam steering
Author(s) -
Pauline Boucher,
Nicolas Barré,
Olivier Pinel,
Guillaume Labroille,
Nicolas Treps
Publication year - 2017
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.25.023060
Subject(s) - optics , tilt (camera) , laser beam quality , beam (structure) , beam parameter product , m squared , transverse plane , beam steering , beam diameter , displacement (psychology) , focus (optics) , physics , gaussian beam , light beam , focal point , materials science , cardinal point , laser , laser beams , mathematics , psychology , structural engineering , psychotherapist , engineering , geometry
We propose and demonstrate experimentally the transfer of one spatial degree of freedom of a laser beam onto another one. Using a multi-plane light conversion device (MPLC) and a modal analysis, we designed a passive setup with immediate response which couples a displacement and tilt in the transverse plane to a longitudinal shift of the focus point of a beam. With this design, we demonstrated a shift of the focal point of the output beam by 4 zR along the propagation axis.