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Y-branching waveguide device with inclined light guide output

A technology for branching waveguides and outputting light, which is applied in the field of optical communication integrated optoelectronic devices, can solve the problems of long splitters, small branch angles, and uncompact device structures, and achieves reduction in branch length, length reduction, and enhancement of applicability. Effect

Inactive Publication Date: 2009-07-01
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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  • Abstract
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Problems solved by technology

[0003] The traditional Y-branch waveguide structure is a direct steering type, and there are mode conversion and radiation losses near the branch point, and the splitter is very long, resulting in an uncompact device structure, and the small branch angle also puts forward high requirements for process accuracy

Method used

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  • Y-branching waveguide device with inclined light guide output
  • Y-branching waveguide device with inclined light guide output
  • Y-branching waveguide device with inclined light guide output

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0026] Such as figure 1 as shown, figure 1 It is a top view of a Y-branch waveguide device with an inclined output optical waveguide provided by the present invention. The Y-branch waveguide device with an inclined output optical waveguide is used for beam splitting or beam combining of optical signals in an optical transmission system. The branch waveguide 1, Combining waveguide 2, transition waveguide 3 and oblique straight waveguide 4.

[0027] The branch waveguide 1 is composed of broken lines with gradually increasing inclination angles, and the angle difference between two adjacent broken lines does not exceed a certain angle, which is used to reduce the loss at the bend of the waveguide. One branch waveguide in t...

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Abstract

The invention discloses a Y-branch waveguide device with inclined output optical waveguide, which is used for optical signal splitting or combination in an optical transmission system. The Y-branch waveguide device comprises a branched waveguide (1), a combining waveguide (2), a transitional waveguide (3) and an inclined straight waveguide (4). With the Y-branch waveguide device, the branched waveguide and the improved combining wave structured which are composed of broken lines, and the inclined straight waveguide are adopted for outputting, thereby not only increasing the branch angle while reducing the branch length and reducing the process difficulty, but also reducing reflection on the waveguide end face, further reducing disturbance to the performance of the whole integrated device by the reflected light, and increasing the stability of the integrated device.

Description

technical field [0001] The invention relates to the technical field of optical communication integrated optoelectronic devices, in particular to a Y-branch waveguide device with an inclined output optical waveguide, which is used for beam splitting or combining of optical signals in an optical transmission system. Background technique [0002] Y-branch waveguide is one of the important basic optical waveguide units in integrated optoelectronics, and is widely used in integrated optical devices such as optical couplers, optical modulators, multiplexer / demultiplexers, optical switches, and fiber optic gyroscope multi-function chips. Among them, its performance is directly related to the performance of these devices. [0003] The traditional Y-branch waveguide structure is a direct steering type, and there are mode conversion and radiation losses near the branch point, and the splitter is very long, resulting in an uncompact device structure, and the small branch angle also put...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/125
Inventor 张雅丽张红广谢亮王欣袁海庆朱洪亮祝宁华
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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