Radiation induced effects on FBGs using different femtosecond laser inscription methods

A. Theodosiou; A. Leal-Junior Jr.; C. Marques; A. Frizera; A. J. Fernandes; A. Stancalie; A. Ioannou; D. Negut; K. Kalli

doi:10.1117/12.2592376

18 April 2021 Radiation induced effects on FBGs using different femtosecond laser inscription methods

A. Theodosiou, A. Leal-Junior Jr., C. Marques, A. Frizera, A. J. Fernandes, A. Stancalie, A. Ioannou, D. Negut, K. Kalli

Author Affiliations +

Proceedings Volume 11773, Micro-structured and Specialty Optical Fibres VII; 117730P (2021) https://doi.org/10.1117/12.2592376
Event: SPIE Optics + Optoelectronics, 2021, Online Only

Abstract

We consider a comparative study of radiation effects (γ and electron) on fibre Bragg gratings (FBGs) that were inscribed using a femtosecond laser in single mode silica optical fibre. The FBGs were inscribed using the point-by-point and the plane-by-plane inscription methods. The FBGs were exposed to a total accumulated radiation dose of 15 kGy in both γ and electron cases. The gratings’ spectra were measured and analysed before and after the exposure to the radiation, while complementary characterisation was undertaken using Raman and Fourier transform infrared spectroscopy. In addition, the changes of the temperature coefficient of the FBGs were analysed comparatively prior to the irradiation to explain how material changes responded to the particular types of radiation. Finally, we consider which of the two inscription methods proves more robust in such harsh environments.

Conference Presentation

Citation Download Citation

A. Theodosiou, A. Leal-Junior Jr., C. Marques, A. Frizera, A. J. Fernandes, A. Stancalie, A. Ioannou, D. Negut, and K. Kalli "Radiation induced effects on FBGs using different femtosecond laser inscription methods", Proc. SPIE 11773, Micro-structured and Specialty Optical Fibres VII, 117730P (18 April 2021); https://doi.org/10.1117/12.2592376

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