Abstract

Large-mode-area (LMA) silica holey fibers (HFs) are investigated both theoretically and experimentally with special attention paid to the effect of a limited number of air channels in the cladding on the main modal characteristics of the fibers. We applied the method of integral equations to model the LMA HF modes, and the results of our calculations are compared with the experimental data obtained for the so-called large-hole–large-spacing silica HFs. The effect of the relative holes’ diameter in the case of a few layers in the cladding on the LMA HF properties is addressed in detail because this parameter basically determines the limits of single-mode waveguide operation and transmission loss of the fabricated LMA HFs.

© 2004 Optical Society of America

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