In this paper, optical mode characteristics of hollow optical fibers are thoroughly analyzed using finite element method. The guided modes along the ring core and cladding are identified and their optical properties are investigated. For the core modes, we investigated intensity distribution, higher order mode cutoff, propagation constant, and chromatic dispersion. The mode coupling between the fundamental mode and the excited modes in both core modes and cladding modes are discussed for applications in mode-coupling devices.
Bibliographical noteFunding Information:
Manuscript received March 03, 2009; revised June 01, 2009, July 09, 2009. First published July 21, 2009; current version published September 10, 2009. This work was supported in part by the KOSEF under Grant ROA-2008-000-20054-0 and Grant R15-2004-024-00000-0, in part by the KICOS under Grant 2008-8-1893(GOSPEL project), in part by the ITEP under Grant 2008-8-1901 and Grant 2009-8-0809, and in part by the Brain Korea 21 Project of the KRF.
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics