Patterned Nonreciprocal Optical Resonator

Optical resonator structures are fundamental components of various optical systems, used extensively in areas such as broadband communications, signal processing, and sensory applications. While these structures significantly contribute to signal enhancement, managing the directionality of signals within these resonators has often proved challenging. The shortcoming of the current approach lies in the bidirectionality of signals in traditional resonators, leading to unwanted reflections and signal loss. This limitation compromises signal integrity and efficiency, thus necessitating a technology capable of achieving optical nonreciprocity, where signals follow a unidirectional trajectory, ensuring optimum signal propagation.

Technology Description

The invention described is an innovatively patterned nonreciprocal optical resonator structure. It consists of a resonator structure that receives an optical signal, a top cladding layer selectively deposited on the resonator, and a core part exposed by patterning the cladding layer. The most distinctive component is a magneto-optically active layer deposited upon the exposed core. This layer is characterized by a magneto-optical medium that is crucial for the functioning of the device. This technology is differentiated primarily due to its ability to generate nonreciprocal optical signals. While traditional optical resonators struggle with bidirectionality of signals, the selective layering technique of this invention facilitates desired optical nonreciprocity. The use of a magneto-optically active medium not only contributes to nonreciprocity but also expands the range of possible applications.