A large-mode-area holey fiber was tapered to a point in which the airholes collapsed, and its dependence on temperature and strain was studied. The transmission spectrum of such a fiber exhibits a series of peaks owing to the interference between the modes of the solid taper waist. We found that the interference peaks shifted to shorter wavelengths as the taper was elongated. However, the peaks were insensitive to temperature. The fabrication and advantages of our novel wavelength-encoded temperature-independent strain sensor compared with other optical fiber strain sensors are discussed.
© 2006 Optical Society of AmericaFull Article | PDF Article
Yinian Zhu, Ping Shum, Hui-Wen Bay, Min Yan, Xia Yu, Juanjuan Hu, Jianzhong Hao, and Chao Lu
Opt. Lett. 30(4) 367-369 (2005)
Cicero Martelli, John Canning, Nathaniel Groothoff, and Katja Lyytikainen
Opt. Lett. 30(14) 1785-1787 (2005)
Vladimir P. Minkovich, Joel Villatoro, David Monzón-Hernández, Sergio Calixto, Alexander B. Sotsky, and Ludmila I. Sotskaya
Opt. Express 13(19) 7609-7614 (2005)