
Multicore fibers (MCFs), which have multiple cores aligned in one cylindrical cladding, are a promising optical fiber design that dramatically enhances the number of optical channels per cross-sectional area. The Mosquito method is one way to fabricate single-mode polymer optical waveguides with multiple cores while maintaining an identical mode-field diameter among them. The technique forms circular cores in polymer waveguides using a commercially available microdispenser and multi-axis syringe scanning robot.