Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Fiber integrated Gaussian mode field beam splitter/combiner

A beam combiner and mode field technology, which is used in the coupling of optical waveguides, instruments, multi-core fibers, etc., can solve the problem that the mode field conversion is not well solved, and achieve the effect of simple production and high coupling efficiency.

Active Publication Date: 2020-06-19
GUILIN UNIV OF ELECTRONIC TECH
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It mainly solves the mode field conversion between single-mode fiber and large mode field fiber. The problem of mode field conversion between different fibers has not been well solved. One of them is the single-core Gaussian mode field fiber and multi-core Gaussian mode field. Gaussian mode-field conversion between field fibers

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fiber integrated Gaussian mode field beam splitter/combiner
  • Fiber integrated Gaussian mode field beam splitter/combiner
  • Fiber integrated Gaussian mode field beam splitter/combiner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] The structure of the Gaussian mode field beam splitter / combiner in this embodiment is single-mode fiber-double-clad fiber-three-core fiber, that is, three-core fiber is selected as the multi-core Gaussian mode field fiber. The geometric dimensions of the single-mode fiber 1 selected in this embodiment are that the diameter of the cladding 4 is 125 μm, the diameter of the core 5 is 8 μm, and the numerical aperture of the core 5 is 0.14; the geometric dimensions of the selected double-clad optical fiber 2 are, The diameter of the outer cladding 8 is 125 μm, the diameter of the inner cladding 7 is 38.4 μm, the diameter of the core 6 is 8 μm, and the numerical aperture of the core 6 is 0.14; the cross-section of the selected three-core optical fiber 3 is as follows Figure 4 As shown, the diameter of the cladding 41 of the three-core optical fiber 3 is 125 μm, the diameters of the three cores 42 are 8 μm, the three cores 42 are located on the same straight line, and the dist...

Embodiment 2

[0062] The structure of the Gaussian mode field beam splitter / combiner in this embodiment is single-mode fiber-double-clad fiber-four-core fiber, that is, the multi-core Gaussian mode field fiber uses four-core fiber. The geometric dimensions of the single-mode fiber 1 selected in this embodiment are that the diameter of the cladding 4 is 125 μm, the diameter of the core 5 is 8 μm, and the numerical aperture of the core 5 is 0.14; the geometric dimensions of the selected double-clad optical fiber 2 are, The diameter of the outer cladding 8 is 125 μm, the diameter of the inner cladding 7 is 44 μm, the diameter of the core 6 is 8 μm, and the numerical aperture of the core 6 is 0.14; the cross-section of the selected four-core optical fiber 3 is as follows Figure 6 As shown, the diameter of the cladding 61 of the four-core optical fiber 3 is 125 μm, and the diameters of the four cores 62 are 8 μm. The distance between cores is 15 μm. The length of the double-clad optical fiber ...

Embodiment 3

[0070] The structure of the Gaussian mode field beam splitter / combiner in this embodiment is single-mode fiber-double-clad fiber-five-core fiber, that is, five-core fiber is selected as the multi-core Gaussian mode field fiber. The geometric dimensions of the single-mode fiber 1 selected in this embodiment are that the diameter of the cladding 4 is 125 μm, the diameter of the core 5 is 8 μm, and the numerical aperture of the core 5 is 0.14; the geometric dimensions of the selected double-clad optical fiber 2 are, The diameter of the outer cladding 8 is 125 μm, the diameter of the inner cladding 7 is 63 μm, the diameter of the core 6 is 8 μm, and the numerical aperture of the core 6 is 0.14; the cross-section of the selected five-core optical fiber 3 is as follows Figure 8 As shown, the diameter of the cladding 81 of the five-core optical fiber 3 is 125 μm, and the diameter of the five cores 82 is 8 μm. The core distance is The length of the double-clad optical fiber 2 selec...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a fiber integrated Gaussian mode field beam splitter / combiner. The optical fiber is characterized by being formed by connecting a single-mode optical fiber 1, a double-clad optical fiber 2 and a multi-core optical fiber 3, wherein the double-clad optical fiber 2 with the length of more than centimeter in the Gaussian mode field beam splitter / combiner is positioned between the single-mode optical fiber 1 and the multi-core Gaussian mode field optical fiber 3, and two ends of the double-clad optical fiber 2 are respectively welded. The Gaussian mode field beam splitter / combiner applies thermal diffusion at a welding point 12 of a double-clad optical fiber 2 and a multi-core Gaussian mode field optical fiber 3, and the purpose of thermal diffusion is to form a refractive index gradient region in a thermal diffusion region 13, so that a fundamental mode of the double-clad optical fiber 2 can be adiabatically converted into a fundamental mode of the multi-core Gaussian mode field optical fiber 3. The method can be used for Gaussian mode field conversion with high coupling efficiency between a single-core Gaussian mode field and a multi-core Gaussian mode field, and can be widely applied to the fields of multi-core optical fiber-based applications, multi-core optical fiber-based optical fiber integrated devices, optical fiber sensors, optical fiber lasers and the like.

Description

[0001] (1) Technical field [0002] The invention relates to a fiber-integrated Gaussian mode field beam splitter / combiner, which can be used for high coupling efficiency Gaussian mode field conversion between a single-core Gaussian mode field and a multi-core Gaussian mode field, and can be widely used in multi-core Gaussian mode field based Various applications of core optical fibers, the fields of optical fiber integrated devices based on multi-core optical fibers, optical fiber sensors and optical fiber lasers, etc., belong to the technical field of fiber integrated optical fiber devices. [0003] (2) Background technology [0004] Mode-field conversion technology plays an important role in the design of fiber lasers and fiber micro-optic systems. Generally, the mode fields of fibers with different core diameters and numerical apertures are different, and the connection between two fibers with different mode fields usually has a large loss. To reduce connection loss, the m...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/02G02B6/255G02B6/26
CPCG02B6/02042G02B6/2552G02B6/262
Inventor 苑立波孟令知陈宫傣
Owner GUILIN UNIV OF ELECTRONIC TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com