Abstract
We fabricate and demonstrate a hollow fiber with multiple embedded cores (MCHF) based on a modified “suspended core-in-tube” preform technique. Its birefringence properties are controlled by the MCHF core’s ovality, which could be controlled by the applied pressure and drawing temperature in the MCHF preform. An in-fiber Mach–Zehnder interferometer with 90.38% visibility is built by fuse-tapering a single-mode fiber to the MCHF, and the splice loss is less than . We expect that the proposed MCHF has some potential applications in in-fiber interferometers without the polarization-induced fading problem and in the biosensing area.
© 2011 Optical Society of America
Full Article | PDF ArticleOSA Recommended Articles
Gilhwan Kim, Taiyong Cho, Kyujin Hwang, Kwanil Lee, Kyung S. Lee, and Sang Bae Lee
Opt. Express 17(3) 1268-1273 (2009)
Manuel Silva-Lopez, Cheng Li, William N. MacPherson, Andrew J. Moore, James S. Barton, Julian D. C. Jones, Donghui Zhao, Lin Zhang, and Ian Bennion
Opt. Lett. 29(19) 2225-2227 (2004)
Xiao-Li Tang, Bang-Shan Sun, and Yi-Wei Shi
Opt. Express 19(25) 24967-24979 (2011)