Huawei Technologies Co., Limited

Libing Zhou

Jun Zhao

Qi Li

Biao Qi

Xishe Liu

Weishi Li

Jinlin Zhou

A waveguide structure is provided. A silicon substrate layer, a silicon waveguide layer, a first silicon dioxide layer, a silicide waveguide layer, and a second silicon dioxide layer are stacked in sequence, the silicon waveguide layer is a conical waveguide layer, the silicon waveguide layer and the silicide waveguide layer are coupled by using an evanescent wave, the silicide waveguide layer includes multiple first waveguide blocks and multiple second waveguide blocks, a material of the first waveguide blocks is the same as a material of the silicide waveguide layer, and a refractive index of a material of the second waveguide blocks is lower than a refractive index of the material of the first waveguide blocks. By using the waveguide structure, a waveguide flare size can be increased, so as to match a mode size of a fiber core of an optical fiber.

Waveguide structure and preparation method

Embodiments of the present invention disclose a method, an apparatus, and a system for detecting an optical network. The method comprises: receiving, by a management device, a reflection peak power reported by a testing device, where the reflection peak power is a reflection peak power of an optical splitter that is obtained by the testing device according to a reflected optical signal, the reflected optical signal is an optical signal obtained by reflecting, by the optical splitter, a testing optical signal that is sent by the testing device and is transmitted to the optical splitter through an optical cable, and the optical splitter reflects the testing optical signal by using a reflective film disposed on an end surface of one optical output port. a detector does not need to carry a testing device to a site, to perform detection, efficiency of detecting performance of an optical network is improved.

Method, apparatus and system for detecting optical network

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Leuven, Belgium

Libing Zhou