抄録
Time domain reflectometry of spontaneously Brillouin scattered lightwaves in a single-mode optical fiber is demonstrated with a coherent self-heterodyne detection system employing a recently proposed frequency translator, a DFB laser diode, and erbium-doped fiber amplifiers. Since the probe pulse frequency is up-converted by the translator by an amount approximately equal to the Brillouin frequency shift, the self-heterodyne beat frequency can be reduced to a sufficiently low frequency in the IF band. The system enables one-end measurement of the Brillouin frequency shift distribution in optical fibers with a single way dynamic range (SWDR) of 16 dB and a frequency resolution of 5 MHz for a spatial resolution of 100 m.
本文言語 | English |
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ページ(範囲) | 730-736 |
ページ数 | 7 |
ジャーナル | Journal of Lightwave Technology |
巻 | 12 |
号 | 5 |
DOI | |
出版ステータス | Published - 1994 5月 |
ASJC Scopus subject areas
- 原子分子物理学および光学