We used differential hole pressurisation and heat treatment to radically change the core shape along a piece of photonic crystal fibre, forming 0.1 dB loss transitions to a rectangular core of 5:1 aspect ratio.
© 2006 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
(060.2340) Fiber optics and optical communications : Fiber optics components
K. Lai, A. Witkowska, S. G. Leon-Saval, W. J. Wadsworth, and T. A. Birks, "Low-loss Anamorphic Transitions to High-aspect-ratio Fibre Cores," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2006), paper CMM7.
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