A Microfiber Bragg Grating Based on a Microstructured Rod: A Proposal

We propose a system suitable for the manufacture of microfiber gratings by wrapping a microfiber on a microstructured rod, which has large refractive index differences (deep teeth) and a large coupling coefficient. Different grating profiles can be realized by using different rod designs. This type of device has great potential for applications in future all-fiber microcircuits.