Laser-induced damages in silica multimode optical fibers

Mario Ferraro; Fabio Mangini; Yifan Sun; Mario Zitelli; Rocco Crescenzi; Alioune Niang; Maria Caterina Crocco; Vincenzo Formoso; Raffaele G. Agostino; Riccardo Barberi; Antonio De Luca; Alessandro Tonello; Sergey A. Babin; Vincent Couderc; Stefan Wabnitz

doi:10.1117/12.2623746

25 May 2022 Laser-induced damages in silica multimode optical fibers

Mario Ferraro, Fabio Mangini, Yifan Sun, Mario Zitelli, Rocco Crescenzi, Alioune Niang, Maria Caterina Crocco, Vincenzo Formoso, Raffaele G. Agostino, Riccardo Barberi, Antonio De Luca, Alessandro Tonello, Sergey A. Babin, Vincent Couderc, Stefan Wabnitz

Author Affiliations +

Proceedings Volume 12142, Fiber Lasers and Glass Photonics: Materials through Applications III; 121420R (2022) https://doi.org/10.1117/12.2623746
Event: SPIE Photonics Europe, 2022, Strasbourg, France

Abstract

We study multiphoton absorption-induced damages to standard silica multimode optical fibers, induced by means of femtosecond infrared laser beams. During the damaging process, the dynamics of beam propagation turns out to non-trivially evolve over a time scale of several hours. Such a long term evolution produces an irreversible drop of the optical transmission, which is accompanied by a drastic change of the output supercontinuum spectrum. A microscopic analysis of the damages was carried out by means of both optical microscopy and absorption-contrast computed X-ray tomography. This has permitted us to obtain information about the sign of the refractive index variation which is induced by the optical breakdown. Our results will find application in a wide array of emerging technologies employing high-power fiber optic beams, such as fiber lasers and micromachining.

Conference Presentation

Citation Download Citation

Mario Ferraro, Fabio Mangini, Yifan Sun, Mario Zitelli, Rocco Crescenzi, Alioune Niang, Maria Caterina Crocco, Vincenzo Formoso, Raffaele G. Agostino, Riccardo Barberi, Antonio De Luca, Alessandro Tonello, Sergey A. Babin, Vincent Couderc, and Stefan Wabnitz "Laser-induced damages in silica multimode optical fibers", Proc. SPIE 12142, Fiber Lasers and Glass Photonics: Materials through Applications III, 121420R (25 May 2022); https://doi.org/10.1117/12.2623746

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