Projective Measurement of LG Modes via Refractive Beam Shaping

Rachel Sampson¹, Mohammad Mirhosseini², and Robert Boyd^2,3,4

¹Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY 11794-3800, USA
²The Institute of Optics, University of Rochester Rochester, NY 14627-0186, USA
³ Department of Physics, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
⁴SUPA, School of Physics and Astronomy, University of Glasgow, G12 8QQ, UK.

We separated LG radial modes by imaging the modes onto their conjugate mode, producing a Gaussian and then coupling the beam into a single mode optical fiber. Using the Gerchberg-Saxton method, we calculated theoretical separation efficiencies of ~80% for p=1-5. Implementation of the experimental set-up is ongoing.

Supported by NSF-REU.