Mitigation of radiation-induced attenuation of optical fibers through photobleaching: study of power dependence at cryogenic temperatures

F. Solis Fernandez; B. M. Ludbrook; J. Schuyt; B. Trompetter; D. A. Moseley; S. M. Haneef; R. A. Badcock

doi:10.1117/12.3010652

9 May 2024 Mitigation of radiation-induced attenuation of optical fibers through photobleaching: study of power dependence at cryogenic temperatures

F. Solis Fernandez, B. M. Ludbrook, J. Schuyt, B. Trompetter, D. A. Moseley, S. M. Haneef, R. A. Badcock

Author Affiliations +

Proceedings Volume 12949, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2024; 129490A (2024) https://doi.org/10.1117/12.3010652
Event: SPIE Smart Structures + Nondestructive Evaluation, 2024, Long Beach, California, United States

Abstract

Radiation-induced attenuation can pose a great challenge to the implementation of optical sensors in extreme environments. Photobleaching is known to mitigate the damage caused by radiation but a lot is yet to be investigated. In this work, we look at the power-dependence of the photobleaching phenomenon at cryogenic temperature. We used three standard fibers carrying around 2mW of light at 1550nm and 4, 0.4, 0.09 of the light at 1050nm respectively; and a fourth standard control fiber that carried no photobleaching light. We observed a large reduction in radiation-induced attenuation in all of the fibers with light at 1050nm when compared to the control fiber. This reduction, however is not linear and saturates for higher powers. These results are consistent with our theoretical models.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

F. Solis Fernandez, B. M. Ludbrook, J. Schuyt, B. Trompetter, D. A. Moseley, S. M. Haneef, and R. A. Badcock "Mitigation of radiation-induced attenuation of optical fibers through photobleaching: study of power dependence at cryogenic temperatures", Proc. SPIE 12949, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2024, 129490A (9 May 2024); https://doi.org/10.1117/12.3010652

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