Non-Hermitian management of light in multimode fibers

Mohammad Nayeem Akhter; Salim Benadouda Ivars; Ramon Herrero Simon; Muriel Botey Cumella; Kestutis Staliunas

doi:10.1117/12.2621583

30 May 2022 Non-Hermitian management of light in multimode fibers

Mohammad Nayeem Akhter, Salim Benadouda Ivars, Ramon Herrero Simon, Muriel Botey Cumella, Kestutis Staliunas

Proceedings Volume PC12140, Micro-Structured and Specialty Optical Fibres VII; PC121400A (2022) https://doi.org/10.1117/12.2621583
Event: SPIE Photonics Europe, 2022, Strasbourg, France

Conference Poster

Abstract

We show that a non-Hermitian modulation of the potential along the nonlinear multimode fibers controls dynamics of propagating radiation. Specifically we consider simultaneous modulation of the refraction index and gain/loss profile. We predict and observe that the non-Hermitian modulation introduces a unidirectional and controllable coupling towards the lower/higher order transverse modes, depending on the potential parameters. Such effect may enhance the beam self-cleaning phenomena, i.e. improve the spatial structure of light in propagation. On the contrary, coupling towards higher order modes may enhance pulsing, turbulence and, eventually help in super-continuum generation.

Citation Download Citation

Mohammad Nayeem Akhter, Salim Benadouda Ivars, Ramon Herrero Simon, Muriel Botey Cumella, and Kestutis Staliunas "Non-Hermitian management of light in multimode fibers", Proc. SPIE PC12140, Micro-Structured and Specialty Optical Fibres VII, PC121400A (30 May 2022); https://doi.org/10.1117/12.2621583

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