期刊
IEEE PHOTONICS TECHNOLOGY LETTERS
卷 24, 期 8, 页码 667-669出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2012.2186286
关键词
Brillouin threshold; distributed Brillouin measurement; microstructured optical fiber; stimulated Brillouin scattering
资金
- European Interreg IV A Program (FEDER)
In this letter, we experimentally demonstrate a 4-dB increase of the stimulated Brillouin scattering threshold in a microstructured optical fiber. This result is obtained by periodically varying the size of the air-hole structure by only 7% amplitude, while keeping a low attenuation coefficient. The efficiency of this passive technique is verified by use of the Brillouin echoes-distributed sensing technique where the Brillouin frequency-shift oscillation is clearly observed.
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