Automatic waveguide-fiber coupling system based on a multiobjective evolutionary algorithm

Abstract

A method for the automated alignment of optical waveguides and fibers based on a multiobjective evolutionary algorithm is proposed. This algorithm reduces the number of parallel operations considerably compared to previous automation schemes. The automated alignment of a single-core input fiber with a channel waveguide and a single-core output fiber is completed using this system in less than 3 min. The alignment of a single-core input fiber with a 1x8 splitter coupler and an eight-core output fiber array is completed in less than 10 min. These results demonstrate the effectiveness of the proposed scheme for automated waveguide alignment, substantially outperforming previous automatic alignment methods.

Low-dose O3+ion-implanted active optical planar waveguides in Nd : YAG crystals: guiding properties and micro-luminescence characterization

“…Based on the waveguide configuration, costeffective integrated lasers with lower thresholds are realized in many gain materials [4][5][6][7][8]. In addition, the small sizes make waveguide devices of high compatibility with optical fibre technologies that have been widely applied in modern telecommunications [9]. Some conventional chemical methods, such as metal ion in-diffusion and ion exchange, cannot be applicable to Nd : YAG due to its structural and chemical properties.…”