Generalized spatial mode sorters for unscrambling light and imaging through multimode fibres

Hlib Kupianskyi; Unė G. Būtaitė; Simon A. R. Horsley; David B. Phillips

doi:10.1117/12.3008334

20 September 2023 Generalized spatial mode sorters for unscrambling light and imaging through multimode fibres

Hlib Kupianskyi, Unė G. Būtaitė, Simon A. R. Horsley, David B. Phillips

Proceedings Volume 12606, Optical Manipulation and Structured Materials Conference; 126060I (2023) https://doi.org/10.1117/12.3008334
Event: Optics and Photonics International Congress, 2023, Yokohama, Japan

Abstract

We develop a generalized optimisation algorithm based on gradient ascent to design mode sorters and optical circuits using multi-plane light conversion. We experimentally demonstrate the sorting of photons based on their orbital angular momentum state, Zernike mode, step-index multimode fibre (MMF) mode, or, most generally, a random spatial mode basis of up to 55 modes. In simulations, we showcase the future potential of these devices to undo the scrambling introduced by the propagation of light through optical fibres: we design a passive device, which we term an optical inverter, that is complementary to a MMF and reverses its scrambling effect on light. We describe how this enables real-time imaging directly through MMFs.

Citation Download Citation

Hlib Kupianskyi, Unė G. Būtaitė, Simon A. R. Horsley, and David B. Phillips "Generalized spatial mode sorters for unscrambling light and imaging through multimode fibres", Proc. SPIE 12606, Optical Manipulation and Structured Materials Conference, 126060I (20 September 2023); https://doi.org/10.1117/12.3008334

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