Fiber-optic sensor for measuring external forces distributed along a fiber

Makoto Tsubokawa, Tsunehito Higashi, Shigeyuki Seikai

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


A fiber-optic sensor for measuring distributed external forces applied along an optical fiber is presented. This method is based on two-beam interferometry which permits evaluation of positions and magnitudes of local mode-conversion caused by external forces. In this experiment the resolvable length was within 0.5 m for a 100 m fiber. A mode power coupling coefficient of up to 4×10-6 m-1 was also observed. This method offers many advantages for a multiplexing fiber-optic sensor.

Original languageEnglish
Pages (from-to)L587-L589
JournalJapanese journal of applied physics
Issue number5A
Publication statusPublished - 1987 May
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)


Dive into the research topics of 'Fiber-optic sensor for measuring external forces distributed along a fiber'. Together they form a unique fingerprint.

Cite this