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Title: Formation and conversion of defect centers in low water peak single mode optical fiber induced by gamma rays irradiation

Abstract

The formation and conversion processes of defect centers in low water peak single mode optical (LWPSM) fiber irradiated with gamma rays were investigated at room temperature using electron spin resonance. Germanium electron center (GEC) and self-trapped hole center (STH) occur when the fibers are irradiated with 1 and 5 kGy cumulative doses, respectively. With the increase in irradiation doses, the GEC defect centers disappear, and new defect centers such as E{sup '} centers (Si and Ge) and nonbridge oxygen hole centers (NBOHCs) generate. The generation of GEC and STH is attributed to the electron transfer, which is completely balanced. This is the main reason that radiation-induced attenuation (RIA) of the LWPSM fiber is only 10 dB/km at communication window. The new defect centers come from the conversion of GEC and STH to E{sup '} centers and NBOHC, and the conversion processes cause bond cleavage, which is the root cause that the RIA of the LWPSM fiber significantly increases up to 180 dB/km at working window. Furthermore, the concentration of new defect centers is saturated easily even by increasing cumulative doses.

Authors:
; ; ; ; ;  [1]
  1. Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Shanghai University, Shanghai 200072 (China)
Publication Date:
OSTI Identifier:
21476154
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 107; Journal Issue: 4; Other Information: DOI: 10.1063/1.3273363; (c) 2010 American Institute of Physics; Journal ID: ISSN 0021-8979
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ATTENUATION; CHARGE EXCHANGE; CONVERSION; ELECTRON SPIN RESONANCE; ELECTRON TRANSFER; ELECTRONS; GAMMA RADIATION; GERMANIUM; HOLES; IRRADIATION; OPTICAL FIBERS; OPTICAL MODES; OXYGEN; PARAMAGNETISM; PHYSICAL RADIATION EFFECTS; POINT DEFECTS; RADIATION DOSES; TRAPPING; WATER; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; DOSES; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ELEMENTS; FERMIONS; FIBERS; HYDROGEN COMPOUNDS; IONIZING RADIATIONS; LEPTONS; MAGNETIC RESONANCE; MAGNETISM; METALS; NONMETALS; OSCILLATION MODES; OXYGEN COMPOUNDS; RADIATION EFFECTS; RADIATIONS; RESONANCE

Citation Formats

Wen, J X, Luo, W Y, Xiao, Z Y, Wang, T Y, Chen, Z Y, and Zeng, X L. Formation and conversion of defect centers in low water peak single mode optical fiber induced by gamma rays irradiation. United States: N. p., 2010. Web. doi:10.1063/1.3273363.
Wen, J X, Luo, W Y, Xiao, Z Y, Wang, T Y, Chen, Z Y, & Zeng, X L. Formation and conversion of defect centers in low water peak single mode optical fiber induced by gamma rays irradiation. United States. https://doi.org/10.1063/1.3273363
Wen, J X, Luo, W Y, Xiao, Z Y, Wang, T Y, Chen, Z Y, and Zeng, X L. 2010. "Formation and conversion of defect centers in low water peak single mode optical fiber induced by gamma rays irradiation". United States. https://doi.org/10.1063/1.3273363.
@article{osti_21476154,
title = {Formation and conversion of defect centers in low water peak single mode optical fiber induced by gamma rays irradiation},
author = {Wen, J X and Luo, W Y and Xiao, Z Y and Wang, T Y and Chen, Z Y and Zeng, X L},
abstractNote = {The formation and conversion processes of defect centers in low water peak single mode optical (LWPSM) fiber irradiated with gamma rays were investigated at room temperature using electron spin resonance. Germanium electron center (GEC) and self-trapped hole center (STH) occur when the fibers are irradiated with 1 and 5 kGy cumulative doses, respectively. With the increase in irradiation doses, the GEC defect centers disappear, and new defect centers such as E{sup '} centers (Si and Ge) and nonbridge oxygen hole centers (NBOHCs) generate. The generation of GEC and STH is attributed to the electron transfer, which is completely balanced. This is the main reason that radiation-induced attenuation (RIA) of the LWPSM fiber is only 10 dB/km at communication window. The new defect centers come from the conversion of GEC and STH to E{sup '} centers and NBOHC, and the conversion processes cause bond cleavage, which is the root cause that the RIA of the LWPSM fiber significantly increases up to 180 dB/km at working window. Furthermore, the concentration of new defect centers is saturated easily even by increasing cumulative doses.},
doi = {10.1063/1.3273363},
url = {https://www.osti.gov/biblio/21476154}, journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 4,
volume = 107,
place = {United States},
year = {Mon Feb 15 00:00:00 EST 2010},
month = {Mon Feb 15 00:00:00 EST 2010}
}