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A tunable mode converter and its preparation method

A mode converter and mode technology, applied in the directions of optical waveguides, optics, light guides, etc., can solve the problems of small number of modes, untunable devices, limited data transmission capacity of optical communication, etc., and achieve low production cost and large thermo-optic coefficient. , the effect of strong interference effect

Active Publication Date: 2022-05-31
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, the number of modes that can be converted by traditional mode converters is relatively small, and most devices cannot be tuned, which limits the further improvement of optical communication data transmission capacity.

Method used

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  • A tunable mode converter and its preparation method
  • A tunable mode converter and its preparation method
  • A tunable mode converter and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] The present invention will be further described below in conjunction with the accompanying drawings and examples.

[0075] The thickness of the silicon wafer substrate 31 is 1 mm, the thickness of the silicon dioxide lower cladding layer 32 is 15 μm, and the thickness of the optical waveguide core layer 33 is

[0079] As shown in Figure 5 (c), when the TE0 mode is input and the first modulation arm 7 and the fourth modulation arm 10 are modulated, the light

[0081] As shown in Fig. 6(a), when the TE1 mode is input and the first modulation arm 7 and the second modulation arm 8 are modulated, the light from

Embodiment 2

[0097] The polymer waveguide upper cladding layer 34 is prepared by a spin coating process: the polymer material polymethyl methacrylate (PMMA)

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Abstract

A tunable mode converter and a manufacturing method thereof belong to the technical field of planar optical waveguide devices. Along the direction of light propagation, there are input few-mode straight waveguide, the first 3‑dB Y branch beam splitter, the first input straight waveguide, the second input straight waveguide, the second 3‑dB Y branch splitter, the third 3‑dB dB Y-branch splitter, four modulation arms, second 3-dB Y-branch coupler, third 3-dB Y-branch coupler, first output straight waveguide, second output straight waveguide, first 3-dB Y-branch Coupler, output few-mode straight waveguide, and four parallel heating electrodes; from bottom to top, it is a silicon wafer substrate, a silicon dioxide lower cladding layer, a strip-shaped optical waveguide core layer, and a polymer upper cladding structure; heating The electrodes are located directly above the modulation arms, and the core material has a higher refractive index than the upper cladding material. The invention achieves the purpose of mutual conversion of four optical modes by modulating the modulation arm of the MZI structure.

Description

A kind of tunable mode converter and preparation method thereof technical field The invention belongs to the planar optical waveguide device technical field, be specifically related to a kind of with silicon wafer as substrate, with dioxide Tunable type with silicon as the lower cladding layer and organic polymer material with high thermo-optic coefficient as the optical waveguide core layer and the upper cladding layer Mode converter and preparation method thereof. Background technique The rapid development of Internet technology, the amount of data that needs to be transmitted increases exponentially, and the traditional electrical interconnection has been difficult to meet. To meet the needs of the rapidly growing data transmission volume, optical interconnection came into being. Different from the traditional electrical interconnection, the optical interconnection The use of light as the data transmission medium greatly improves the data transmission speed. Tra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/12
CPCG02B6/12G02B2006/12152G02B2006/12069
Inventor 王希斌孙士杰林柏竹杨凯迪朱穆张大明
Owner JILIN UNIV
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