Title :
Optical feedback control of resonant fibre scanners
Author :
Mokhtar, M.H.H. ; Syms, Richard R. A.
Author_Institution :
Imperial Coll. London, London, UK
Abstract :
Intermittent reflection from an annular mirror surrounding the imaging lens is proposed as a method of providing feedback in a resonant fibre optical scanner. A phase locked loop and a proportional controller can then be used to adjust the drive frequency and amplitude. The system is demonstrated using a piezoelectrically actuated dual numerical aperture confocal resonant fibre scanner.
Keywords :
lenses; mirrors; optical feedback; optical fibres; optical scanners; phase locked loops; piezoelectric actuators; reflectivity; annular mirror; dual numerical aperture confocal resonant fibre scanner; imaging lens; intermittent reflection; optical feedback control; phase locked loop; piezoelectrically actuated resonant fibre scanner; proportional controller; resonant fibre optical scanner; resonant fibre scanners; Convergence; Lenses; Mirrors; Optical feedback; Optical fibers; Resonant frequency;
Conference_Titel :
Optical MEMS and Nanophotonics (OMN), 2014 International Conference on
Conference_Location :
Glasgow
Print_ISBN :
978-0-9928-4140-9
DOI :
10.1109/OMN.2014.6924609
