Abstract

Regular and nested negative curvature optical fibers with elliptical capillary tubes have been proposed in this paper for ultralow loss guidance at the telecommunication wavelength. Finite element modeling shows that these fibers can have lower loss compared to their counterparts with circular tubes. These hollow core fibers with low loss and large bandwidth can have huge potential applications in data transmission, sensing, high power delivery, and serve as an ideal platform for the study of a wide variety of nonlinear optical effects.

© 2016 IEEE

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