Strategies to reduce radiation induced gain degradation in erbium doped fiber

Colin C. Baker; Tony Zhou; Fred Kung; Woohong Kim; Daniel Rhonehouse; Jasbinder Sanghera

doi:10.1117/12.3003757

8 March 2024 Strategies to reduce radiation induced gain degradation in erbium doped fiber

Colin C. Baker, Tony Zhou, Fred Kung, Woohong Kim, Daniel Rhonehouse, Jasbinder Sanghera

Proceedings Volume 12882, Optical Components and Materials XXI; 1288208 (2024) https://doi.org/10.1117/12.3003757
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

The behavior of erbium doped fiber amplifiers (EDFA) in a master oscillator power amplifier (MOPA) configuration was characterized using a ⁶⁰Co γ-ray source. The results indicate that power degradation and photo-anneal recovery processes simultaneously exist for erbium doped fibers with relatively low concentrations of the co-dopants cerium and germanium added. For fibers with relatively high concentrations of germanium and comparable levels of cerium co-dopants highly effective radiation hard behavior is exhibited. A fiber optimized for efficiency also provides a radiation hard EDFA where after a 100 kRad (1000 Gy) exposure, the degradation in signal gain was only 5 dB at a MOPA pump power of 315 mW.

Conference Presentation

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

Citation Download Citation

Colin C. Baker, Tony Zhou, Fred Kung, Woohong Kim, Daniel Rhonehouse, and Jasbinder Sanghera "Strategies to reduce radiation induced gain degradation in erbium doped fiber", Proc. SPIE 12882, Optical Components and Materials XXI, 1288208 (8 March 2024); https://doi.org/10.1117/12.3003757

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