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Optical fiber device, manufacturing method and acoustic Mach-Zehnder interferometer in optical fiber

A technology for optical fiber devices and manufacturing methods, applied in the field of optical information processing, can solve the problems of cumbersome preparation process, large size, and fragile structure, and achieve the effects of eliminating cumbersome processes, light center mass, and compact structure

Pending Publication Date: 2021-05-07
NANKAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the response time of the convex sandwich sample is shortened to 370μs, it still shows the cumbersome preparation process, the fragile structure and the bulky size.

Method used

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  • Optical fiber device, manufacturing method and acoustic Mach-Zehnder interferometer in optical fiber
  • Optical fiber device, manufacturing method and acoustic Mach-Zehnder interferometer in optical fiber
  • Optical fiber device, manufacturing method and acoustic Mach-Zehnder interferometer in optical fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] figure 1 A schematic structural diagram of an optical fiber device applied to an acoustically induced Mach-Zehnder interferometer in an optical fiber according to Embodiment 1 of the present invention is shown.

[0047] like figure 1 As shown, an optical fiber device applied to an acoustically induced Mach-Zehnder interferometer in an optical fiber, including: a single-mode optical fiber and a sandwich structure formed on a section of the single-mode optical fiber;

[0048] The sandwich structure includes the first acousto-optic active area 1, the second acousto-optic active area 2 and the interference arm area 3 coaxial with the single-mode fiber, and the interference arm area 3 is located in the first acousto-optic active area 1 and the second acousto-optic active area between 2;

[0049] The diameters of the first acousto-optic active zone 1 and the second acousto-optic active zone 2 are equal, and the diameter of the first acousto-optic active zone 1 is smaller th...

Embodiment 2

[0059] A method for manufacturing an optical fiber device applied to an acoustically induced Mach-Zehnder interferometer in an optical fiber, used to manufacture an optical fiber device applied to an acoustically induced Mach-Zehnder interferometer in an optical fiber according to the above fact 1, the method comprising:

[0060] Step S101: Provide a single-mode optical fiber, remove the coating layer of a predetermined area on the single-mode optical fiber, and use it as a preparation section of the sandwich structure;

[0061] In a specific application scenario, single-mode optical fiber is used to make optical fiber devices. The core diameter of single-mode optical fiber is very small, only 8-10 μm. The outer layer of the core is cladding, and the outer cladding is coating. Before the preparation, a part of the coating layer of the single-mode optical fiber is stripped as a preparation section of a sandwich structure, and only the inner fiber core and the outer cladding of t...

Embodiment 3

[0068] A method for manufacturing an optical fiber device applied to an acoustically induced Mach-Zehnder interferometer in an optical fiber, used to manufacture an optical fiber device applied to an acoustically induced Mach-Zehnder interferometer in an optical fiber according to the above fact 1, the method comprising:

[0069] Step S201: Provide a single-mode optical fiber, and remove the coating layer of a predetermined area on the single-mode optical fiber, as a preparation section of the sandwich structure;

[0070] Step S202: Etching the preparation section with an etching solution to reduce the diameter of the preparation section to a first preset diameter, where the first preset diameter is smaller than the cladding diameter of the single-mode optical fiber and larger than the core diameter of the single-mode optical fiber;

[0071] Step S203: Draw the middle region of the optical fiber preparation section into a double-cone structure by using the hydrogen-oxygen flame...

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Abstract

The invention discloses an optical fiber device, a manufacturing method and an acoustic Mach-Zehnder interferometer in an optical fiber, the optical fiber device comprises a single-mode optical fiber and a sandwich structure formed on a section of area of the single-mode optical fiber, and the sandwich structure is used for generating an acousto-optic effect; the sandwich structure comprises a first acousto-optic action area, a second acousto-optic action area and an interference arm area which are coaxial with the single-mode optical fiber, and the interference arm area is located between the first acousto-optic action area and the second acousto-optic action area; the diameter of the first acousto-optic action area is equal to that of the second acousto-optic action area, and the diameter of the first acousto-optic action area is smaller than that of a cladding in the single-mode optical fiber and larger than that of a fiber core in the single-mode optical fiber; the diameter of the interference arm area is smaller than that of the first conical area and larger than that of a fiber core in the single-mode fiber. The acoustic Mach-Zehnder interferometer in the optical fiber is compact in structure, rapid in tuning, stable in performance and easy to prepare, and the manufacturing cost is reduced.

Description

technical field [0001] The invention relates to the field of optical information processing, and more specifically, to an optical fiber device, a manufacturing method, and an acoustically induced Mach-Zehnder interferometer in an optical fiber. Background technique [0002] Due to its excellent compatibility with optical fiber systems, good environmental adaptability, low insertion loss and multi-channel filtering characteristics, all-fiber Mach-Zehnder interferometers have been widely used in sensing and sensing of humidity, temperature, strain, solution concentration, etc. communication field. [0003] Compared with the double-arm independent all-fiber Mach-Zehnder interferometer, the compact coaxial single-fiber Mach-Zehnder interferometer has attracted more attention of researchers. [0004] So far, a variety of methods have been used to construct all-fiber coaxial Mach-Zehnder interferometers, including mode-field-mismatch fusion splicing, oblique beam splitting by fem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/26G02F1/125
CPCG02B6/26G02F1/125
Inventor 高峰韩小芳许京军张国权
Owner NANKAI UNIV
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