Abstract
We present the design of a microstructured fiber for optical communications with orbital angular momentum (OAM) modes. Such microstructured fibers could effectively avoid the excitation of linearly polarized (LP) modes with its unique air-core and air-coated structure. Besides, these fibers could support a large number of OAM states. The first generation of such OAM fibers are fabricated and studied for further optimizing fiber structure parameters.
© 2015 Optical Society of America
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