We present a method to determine the magnitude and sign of the topological charge of an optical beam carrying orbital angular momentum using a wedged optical flat and two confocal lenses.

© 2017 Optical Society of America

PDF Article


You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access OSA Member Subscription