Multicore, tapered optical fiber for nonlinear pulse reshaping and saturable absorption.

Opt Lett

Centre for Ultrahigh-bandwidth Devices for Optical Systems, Institute of Photonics and Optical Science, School of Physics, The University of Sydney, NSW 2006, Australia.

Published: July 2012

We present a new method to create a coupled waveguide array via tapering a seven-core telecommunications fiber. The fiber based waveguide array is demonstrated to exhibit the novel physics associated with coupled waveguide arrays, such as discrete diffraction and discrete self-focusing. The saturable absorber characteristics of the device are characterized and an autocorrelation measurement reveals significant single-pass pulse reshaping.

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http://dx.doi.org/10.1364/OL.37.002469DOI Listing

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