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Size spot converter

A converter and mode spot technology, applied in the field of optical communication, can solve the problem of large coupling loss of optical fiber spot, and achieve the effect of reducing coupling loss and improving coupling efficiency

Pending Publication Date: 2022-07-26
WUHAN HUAGONG GENUINE OPTICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a mode spot converter to solve the problem of large optical fiber spot coupling loss

Method used

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Embodiment Construction

[0025] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0026] see Figure 1-4 , a mode spot converter provided by the first embodiment of the present invention includes a substrate 1, a lower cladding layer 2, a waveguide layer 3 and a covering layer 4, and the lower cladding layer 2 and the covering layer 4 are sequentially arranged on the substrate 1, The waveguide layer 3 is located in the cover layer 4, and the waveguide layer 3 includes a first waveguide structure 31 and at least two second waveguide structures 32 located on both sides of the first waveguide structure 31, wherein the first waveguide structure 31 is configured to be connec...

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Abstract

The spot size converter comprises a bottom lining, a lower cladding, a waveguide layer and a covering layer, the lower cladding and the covering layer are sequentially arranged on the bottom lining, the waveguide layer is located in the covering layer, and the waveguide layer comprises a first waveguide structure and at least two second waveguide structures located on the two sides of the first waveguide structure; wherein the first waveguide structure is configured to form light field transition with the at least two second waveguide structures so as to convert a light field into the at least two second waveguide structures on the two sides, the second waveguide structures and the covering layer form a stripe expansion structure, the second waveguide structures diverge the light field to the covering layer, and the covering layer is configured to cover the light field. According to the spot size converter provided by the invention, the oval spots can be expanded and formed, and the coupling efficiency is improved.

Description

technical field [0001] The present invention relates to the technical field of optical communication, in particular to a mode spot converter. Background technique [0002] In recent years, the rapid development of services such as cloud services, 5G communications, and high-definition television has put forward great demands on communication speed and capacity. Optical communication has the advantages of high bandwidth, high speed and low cost by loading the transmission signal on the optical carrier and using optical fiber as the medium for transmission, which has made a revolutionary development in the field of communication. Among them, silicon photonics technology is a research hotspot in the field of optical communication. Due to the characteristics of high refractive index difference, the size of optical devices has been reduced by one or even several orders of magnitude compared with traditional optical devices. The silicon photonics process can be compatible with th...

Claims

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Application Information

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IPC IPC(8): G02B6/14G02B6/122
CPCG02B6/14G02B6/1228
Inventor 李春生周秋桂李军石文虎高云龙
Owner WUHAN HUAGONG GENUINE OPTICS TECH