期刊
JOURNAL OF LIGHTWAVE TECHNOLOGY
卷 32, 期 11, 页码 2157-2162出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JLT.2014.2319831
关键词
Polarization; radiation; tilted fiber Bragg gratings (TFBGs)
资金
- Natural Science and Engineering Research Council of Canada
- Canada Foundation for Innovation, Canada Research Chairs program
- National Natural Science Foundation of China [51374188]
- Zhejiang Provincial Natural Science Foundation for Distinguished Young Scientists [LR13E040001]
The radiation pattern of near-infrared light from 10. tilted fiber Bragg gratings is measured as a function of position along the grating, azimuthal direction, and input light polarization. An anomalous spatial periodicity in the radiation pattern is found and assigned to the presence of imperfect zero-order nulling and on the uncertainty in the exact alignment between the optical fiber and the phase mask used to form the grating. Furthermore, the intensity of the radiated light is correlated with the transmission spectrum of the tilted grating, showing narrowband spectral regions of increased and decreased radiation.
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