Accelink Technologies Co., Ltd.

Leilei Hu

Liping Sun

Qianggao Hu

Bo Zhang

Liu Yang

Yuan Zhang

Zhilin Yuan

Rui Yang

Hui Xie

Fei Liang

A multicast exchange optical switch includes an input port device including M input ports, an output port device including N output ports, a diffractive beam splitter, an optical focusing component, and a 1&#xd7;N array of reflective devices. The diffractive beam splitter diffracts each input signal beam from the input ports into at least N directions. The optical focusing component includes a first focusing lens and a second focusing lens. The first focusing lens focuses sub-beams from the respective input ports along the Y-axis direction having the same diffraction order. The second focusing lens focuses on the X-axis direction sub-beams from the same input port having different diffraction orders. The 1&#xd7;N array of reflective devices is provided at the focal plane of the optical focusing component and each reflective device reflects a sub-beam from any one of the input ports to any one of the output ports.

Multicast exchange optical switch

A multicast optical switch based on free-space transmission comprises a 1&#xd7;M input collimator array, a light splitting device, an optical distance compensation device, a spot transformation device, a 1&#xd7;N output collimator array and a reflector array which are arranged in sequence. The 1&#xd7;N output collimator array corresponds to reflector array. The light splitting device is provided with a light splitting surface and a reflection surface, and by means of light splitting surface and reflection surface, light splitting and beam splitting of n times are carried out on input signals of 1&#xd7;M input collimator array, and then N beams of sub-signal light are generated. The optical distance compensation device compensates optical distance differences among M&#xd7;N sub-signal light beams produced by light splitting device. The M&#xd7;N sub-signal light beams are focused to be 1&#xd7;N light spots through light spot conversion device, and then 1&#xd7;N light spots are reflected to reflector array.

Multicast optical switch based on free-space transmission

Growing community of inventors

Wuhan, China

Leilei Hu