Manufacturing and testing of all-silica fibers resistant to UV and gamma radiation

Andrey Grishchenko; Dmitrijs Saharovs; Mario Paredes

doi:10.1117/12.2633206

3 October 2022 Manufacturing and testing of all-silica fibers resistant to UV and gamma radiation

Andrey Grishchenko, Dmitrijs Saharovs, Mario Paredes

Proceedings Volume 12229, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XVI; 1222905 (2022) https://doi.org/10.1117/12.2633206
Event: SPIE Optical Engineering + Applications, 2022, San Diego, California, United States

Abstract

This study examined the influence of the composition of the core material, preform production technology and posttreatment with hydrogen on the optical stability of the all-silica optical fibers to UV radiation. Elaborated fiber coating, consisting of carbon and polyimide layers, allows hydrogen saturation at 250 °C but shows excellent hermeticity at room temperature. The comparative study of the optical fibers not saturated with hydrogen showed that silicas with both high and low content of hydroxyl groups are observed to have sufficient initial UV transparency and resistance to UV irradiation. More significantly is the occurrence of defects in the structure of silica causing absorption in the region of 200 - 400 nm as well as the presence of Si-H and Si-Cl groups, which act as precursors for defects with absorption peaks at 214 nm and 330 nm. The deposition method of a reflective cladding had a significant effect on the incidence of defects and Si-H groups in the fiber core. The most significant effect on induced loss was caused by hydrogen treatment of the fibers. The findings of this study provide strategies to optimize the production of optically transparent all-silica fibers for various spectral regions and significantly improve their stability under UV and gamma irradiation.

Conference Presentation

Citation Download Citation

Andrey Grishchenko, Dmitrijs Saharovs, and Mario Paredes "Manufacturing and testing of all-silica fibers resistant to UV and gamma radiation", Proc. SPIE 12229, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XVI, 1222905 (3 October 2022); https://doi.org/10.1117/12.2633206

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