抄録
Rayleigh backscattering in a single-mode optical fiber is measured by coherent-OFDR employing a frequency variable DFB laser diode. Backscattered power from the neighborhood of the far end of a 0.5 km long fiber is measured with a spatial resolution of 50 cm. The insertion of a delay line fiber in the reference optical path and an acoustooptic frequency shifter in the signal optical path enable us to measure backscattering in a long optical fiber in spite of the short coherence length of the DFB-LD.
| 本文言語 | English |
|---|---|
| ページ（範囲） | 1039-1041 |
| ページ数 | 3 |
| ジャーナル | IEEE Photonics Technology Letters |
| 巻 | 3 |
| 号 | 11 |
| DOI | |
| 出版ステータス | Published - 1991 11月 |
ASJC Scopus subject areas
- 電子材料、光学材料、および磁性材料
- 原子分子物理学および光学
- 電子工学および電気工学