Measurement of optical fiber parameters and thermal core diffusion characteristics by digital image processing Chavez-Gutierrez, F. ; Martinez-Rios, A. ; Toral-Acosta, D. ; Torres-Armenta, D. ; Guerrero-Viramontes, J. A. Abstract Publication: Applied Optics Pub Date: May 2018 DOI: 10.1364/AO.57.004331 Bibcode: 2018ApOpt..57.4331C