2024-03-28T12:37:41Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/454992022-11-17T02:08:08Zhdl_2115_20057hdl_2115_148Optical transmittance degradation in tapered fibers1000030540190Fujiwara, MasazumiToubaru, Kiyota1000080321959Takeuchi, Shigekiopen access© 2011 Optical Society of America535We 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.Optical Society of America2011-04-25engjournal articleVoRhttp://hdl.handle.net/2115/45499https://doi.org/10.1364/OE.19.008596216431101094-4087Optics Express19985968601https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/45499/1/OE19-9_8596-8601.pdfapplication/pdf787.08 KB2011-04-25