Monitoring of gamma-irradiated Yb-doped optical fibers through the pump induced refractive index change effect

Conference · Fri Jul 01 00:00:00 EDT 2011

DOI:https://doi.org/10.1109/ANIMMA.2011.6172839· OSTI ID:22039878

Pekukhova, I ^[1]; Fotiadi, A A ^[1]; Shubin, A V ^[2]; Tomashuk, A L ^[3]; Novikov, S G; Zolotovskiy, I O ^[3]; Antipov, O L ^[4]; Panajotov, K; Thienpont, H ^[5]; Megret, P ^[1]

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1. Univ. of Mons, Mons 7000 (Belgium)
2. Fiber Optic Research Center of RAS, Moscow 119333 (Russian Federation)
3. Ulianovsk State Univ., Ulianovsk 432970 (Russian Federation)
4. Inst. of Applied Physics of RAS, Nizhniy Novgorod 603950 (Russian Federation)
5. Vrije Universiteit Brussel, Brussels 1050 (Belgium)

We report on the method for monitoring of the modifications in Yb-doped optical fibers irradiated by gamma-rays with the doses 1, 2, 4 and 8 kGy. This method is based on the refractive index change (RIC) effect induced in the tested fibers by square modulated optical pump pulses of 1 ms duration at 980 nm with the power up to 100 mW. The applied in-situ monitoring is based on interferometric technique and highlights the key parameters of the RIC effect that allows to characterize quantitatively the degree of the fiber degradation under the gamma irradiation. (authors)

• OSTI ID: 22039878
• Resource Relation: Conference: ANIMMA 2011: 2. International Conference on Advancements in Nuclear Instrumentation, Measurement Methods and their Applications, Ghent (Belgium), 6-9 Jun 2011; Other Information: Country of input: France; 6 refs.; IEEE Catalog Number: CFP1124I-CDR
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
36 MATERIALS SCIENCE
DOPED MATERIALS
GAMMA RADIATION
INTERFEROMETRY
OPTICAL FIBERS
OPTICAL PUMPING
RADIATION DOSES
RADIATION EFFECTS
REFRACTIVE INDEX
YTTERBIUM