We propose a directional coupler in Bragg fibers that allows for remote coupling and thus lossless conversion of the fundamental mode into a large-diameter annular mode. We analyze the propagation behavior and give design rules.
© 2004 Optical Society of America
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2280) Fiber optics and optical communications : Fiber design and fabrication
(230.0230) Optical devices : Optical devices
(230.1480) Optical devices : Bragg reflectors
R. Iliew, C. Etrich, and F. Lederer, "Remote coupling in Bragg fibers," in Conference on Lasers and Electro-Optics/International Quantum Electronics Conference and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2004), paper CThM5.
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