Optical transmittance degradation in tapered fibers

Masazumi Fujiwara, Kiyota Toubaru, Shigeki Takeuchi

Research output: Contribution to journalArticlepeer-review

53 Citations (Scopus)


We investigated the cause of optical transmittance degradation in tapered fibers. Degradation commences immediately after fabrication and it eventually reduces the transmittance to almost zero. It is a major problem that limits applications of tapered fibers. We systematically investigated the effect of the dust-particle density and the humidity on the degradation dynamics. The results clearly show that the degradation is mostly due to dust particles and that it is not related to the humidity. In a dust free environment it is possible to preserve the transmittance with a degradation of less than the noise (±0.02) over 1 week.

Original languageEnglish
Pages (from-to)8596-8601
Number of pages6
JournalOptics Express
Issue number9
Publication statusPublished - Apr 25 2011
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


Dive into the research topics of 'Optical transmittance degradation in tapered fibers'. Together they form a unique fingerprint.

Cite this