Abstract
We report in this Letter the resonant coupling mechanism in bending trenched bend-insensitive fiber (BIF). It is found that among the trench parameters, the core-trench distance is predominant for optimized BIF design. We reveal that resonant coupling is an intrinsic characteristic of bending trenched BIF, and resonant coupling between the fiber core and the innermost cladding would limit the ultimate bending loss of BIF under tight bend. Resonant coupling is also present in double-trenched BIF, and would impair its bending performance.
© 2013 Optical Society of America
Full Article | PDF ArticleMore Like This
Pramod R. Watekar, Seongmin Ju, and Won-Taek Han
Opt. Express 17(22) 20155-20166 (2009)
Xingjuan Zheng, Guobin Ren, Lin Huang, Haisu Li, Bofeng Zhu, Heling Zheng, and Min Cao
Appl. Opt. 55(10) 2639-2648 (2016)
Pramod R. Watekar, Seongmin Ju, and Won-Taek Han
Appl. Opt. 50(25) E97-E101 (2011)