The measurement and generation of orbital angular momentum using an optical geometric transformation

Martin P. J. Lavery; Andrew Fraine; David Roberston; Alexander Sergienko; Johannes Courtial; Alan E. Wilner; Miles J. Padgett

doi:10.1117/12.2004534

19 March 2013 The measurement and generation of orbital angular momentum using an optical geometric transformation

Martin P. J. Lavery, Andrew Fraine, David Roberston, Alexander Sergienko, Johannes Courtial, Alan E. Wilner, Miles J. Padgett

Author Affiliations +

Proceedings Volume 8610, Free-Space Laser Communication and Atmospheric Propagation XXV; 86100J (2013) https://doi.org/10.1117/12.2004534
Event: SPIE LASE, 2013, San Francisco, California, United States

Abstract

Previously we have demonstrated that the orbital angular momentum (OAM) of the light beam may be measured by image transformation that maps the azimuthal to linear transverse co-ordinate (Berkhout et al 2010 Phys. Rev. Lett. 105 153601). For each input OAM state the transmitted light is focused to a different transverse position enabling simultaneous measurement over many states. We present a significant improvement to our earlier design, extending the measurement bandwidth to greater than 50 OAM states and showing simultaneous measurement of the radial co-ordinate. We further demonstrate the transformation working in reverse, potentially allowing for the rapid switching of OAM modes.

Citation Download Citation

Martin P. J. Lavery, Andrew Fraine, David Roberston, Alexander Sergienko, Johannes Courtial, Alan E. Wilner, and Miles J. Padgett "The measurement and generation of orbital angular momentum using an optical geometric transformation", Proc. SPIE 8610, Free-Space Laser Communication and Atmospheric Propagation XXV, 86100J (19 March 2013); https://doi.org/10.1117/12.2004534

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available