Abstract
A modified multi-trench fiber (MTF) design with gaps to create leakage channels is proposed and investigated numerically using the scalar finite-difference beam-propagation method algorithm. Great potential in single-mode operation, mode area enlargement, and resistance to bending is demonstrated. A high loss ratio () between high-order modes and the fundamental mode is possible over a wide range of high-index ring thickness, gap width, and bending orientation. This reduces the required fabrication accuracy. We obtain an effective area of at a wavelength of 1050 nm and a 20 cm bend radius with a high loss ratio (). Our modified gap MTF can possibly be fabricated by drilling holes in an ordinary MTF and inserting rods into the holes.
© 2015 Optical Society of America
Full Article | PDF ArticleMore Like This
Jiang Sun, Zexin Kang, Jing Wang, Chao Liu, and Shuisheng Jian
Opt. Express 22(15) 18036-18043 (2014)
Deepak Jain, Catherine Baskiotis, and Jayanta Kumar Sahu
Opt. Express 21(22) 26663-26670 (2013)
Jiang Sun, Dong Wang, Dechao Zhang, Yunbo Li, Liuyan Han, Haisu Li, and Han Li
Opt. Express 32(2) 2554-2560 (2024)