Topological laser

Topological laser


16 March 2018

Illustration of a nonmagnetic topological insulator laser: an array of microring resonators (circles) coupled by waveguides (ellipses) in a topological fashion. The red perimeter depicts the lasing topological edge mode, which exits through one of the two outputs (solid red triangle). Implementation of this design in an all-dielectric semiconductor enhances lasing performance and makes many diode lasers operate together as a single highly coherent laser.

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