Open Accessγ-irradiation damage of quartz fiber and its effects on near-infrared transmission characteristics
Author(s) -
Jiang Hui,
Baoxue Chen,
Fu Chang-Song,
Guorong Sui,
Mamoru Iso
Publication year - 2010
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.59.7782
Subject(s) - materials science , irradiation , optics , infrared , optical fiber , annealing (glass) , optoelectronics , transmission loss , raman scattering , raman spectroscopy , composite material , physics , nuclear physics
Around the near-infrared wavelength at which optical fiber gyroscope works, the effects of 120 krad γ-irradiation on single-mode quartz fiber are studied experimentally from the following several aspects: return loss, polarization dependent loss, scattering loss, absorption loss, mode field distribution and guided-mode propagation constants. The gap defect energy level and its increment are estimated from near-infrared spectroscopy and stimulated raman scattering experiment. The medium density change is studied by x-ray diffraction. The photothermal effect of irradiated fiber with γ-ray is observed by a high sensitivity interference circuit. The test data show that the UV anneal has some repairing effect, revealing the possibility that UV annealing method can serve as a mannes of active reinforcement.