Spatially distributed delay line interferometer based on transmission Bragg scattering
Published on 2019-08-23T12:39:36Z (GMT) by
A novel approach for a delay line interferometer (DLI) based on transmission Bragg scattering is proposed. We have numerically and experimentally demonstrated for the first time that a Bragg grating can deliver the functionality of an DLI in its transmission mode along a single common interfering optical path, instead of the conventional DLI implementation with two interfering optical paths. As a proof of concept, phase-modulated fiber Bragg gratings have been designed and fabricated, showing the desired functionality in the transmission mode of the Bragg grating. The proposed approach is applicable to any kind of Bragg grating technology, such as volume Bragg gratings, dielectric mirrors, silicon photonics, and other optical waveguide-based Bragg structures.
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Preciado, Miguel; Shu, Xuewen; Sugden, Kate; El-Taher, Atalla (2019): Spatially distributed delay line interferometer based on transmission Bragg scattering. The Optical Society. Collection.