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Wavelength-division multiplex device with double layered cone structure based on ridge form wave guide

A technology of wavelength division multiplexing device and tapered structure, which is applied in the directions of light guides, instruments, optical components, etc., can solve the problems of channel crosstalk, insertion loss, etc., to improve the matching degree, reduce the size of the device, and reduce the bending radius. Effect

Inactive Publication Date: 2006-02-22
ZHEJIANG UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to provide a wavelength division multiplexing device with a double-layer tapered structure based on a ridge waveguide, which uses a double-layer tapered structure to solve the problems of insertion loss and channel crosstalk in traditional wavelength division multiplexers.

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  • Wavelength-division multiplex device with double layered cone structure based on ridge form wave guide
  • Wavelength-division multiplex device with double layered cone structure based on ridge form wave guide
  • Wavelength-division multiplex device with double layered cone structure based on ridge form wave guide

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Embodiment Construction

[0023] like image 3 , 4 , 5, and 6, a wavelength division multiplexing device with a double-layer tapered structure based on a ridge waveguide, including at least one input waveguide, a free propagation region 8, an etched concave grating 15 and at least one output waveguide, Both the input waveguide and the output waveguide are connected to the free propagation area, and the etched concave grating 15 is integrated with the free propagation area 8; it is characterized in that at least one input waveguide contains a double-layer tapered waveguide structure 2 before or after the curved part; each A double-layer waveguide tapered structure 2 is included before or after the curved part of the output waveguide.

[0024] like figure 2 As shown, in the double-layer tapered waveguide structure, the lower tapered structure (6) is only formed on the lower part of the Si layer, or the upper tapered structure 10 and the lower tapered structure 6 are respectively formed on the upper an...

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Abstract

This invention discloses one double layer taper structure wavelength-division multiplex parts based on wavelength-division with ridge shape, which comprises at least one input wave guide, one free transmission area, one etching concaved grating and at least one output wave guide, wherein, the input or output wave guide are connected to the FPR and the etching concaved grating integrates with FPR; at least one input wave guide comprises double taper structures; at least one output wave guide comprises double layer taper structure and shallow etching area.

Description

technical field [0001] The invention relates to the technical field of optical communication wavelength division multiplexing, in particular to a wavelength division multiplexing device with a double-layer tapered structure based on a silicon-on-insulator material (SOI) ridge waveguide. Background technique [0002] Wavelength division multiplexing / demultiplexing technology is the key technology of modern optical communication technology. Wavelength division multiplexing / demultiplexing refers to mixing light of different wavelengths into composite light or separating light of each wavelength included in the composite light. The wavelength division multiplexing / demultiplexing device is a device that realizes the wavelength division multiplexing / demultiplexing technology. Therefore, the wavelength division multiplexing / demultiplexing device is a very important component in the wavelength division multiplexing communication system. There are two main types of wavelength divis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/124G02B6/136
Inventor 戴道锌何赛灵
Owner ZHEJIANG UNIV
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