Manufacturing method of 1*2 optical fiber beam splitter based on convex cone welding

A technology of optical fiber beam splitter and manufacturing method, which is applied in the directions of light guides, optics, instruments, etc., can solve the problems of difficulty in adjusting the splitting ratio, difficult manufacturing methods of optical fiber splitters, and low mechanical strength, and achieve simple welding and reliable splitting ratio Adjustment, high mechanical strength effect

Inactive Publication Date: 2018-09-07
NORTHEASTERN UNIV
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Problems solved by technology

[0005] The present invention solves the problems of difficult manufacturing methods, low mechanical strength, and difficult adjustment of the splitting ratio of current optical fiber beam splitters, and mainly designs a manufacturing method of a 1×2 optical fiber beam splitter based on convex cone dislocation fusion

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  • Manufacturing method of 1*2 optical fiber beam splitter based on convex cone welding
  • Manufacturing method of 1*2 optical fiber beam splitter based on convex cone welding
  • Manufacturing method of 1*2 optical fiber beam splitter based on convex cone welding

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Embodiment Construction

[0015] In order to make the above objects and advantages more comprehensible, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0016] The present invention is achieved through the following technical solutions. A manufacturing method of a 1x2 optical fiber coupler based on convex cone fusion, the main tools used are: single-mode optical fiber, optical fiber cutter, Furukawa 178s fusion splicer. The single-mode fiber A1, single-mode fiber B2, and single-mode fiber C3 are cut flat by a fiber cutter, and the single-mode fiber A1, single-mode fiber B2, and single-mode fiber C3 are spliced ​​with convex cone displacement using a Furukawa 178s fusion splicer.

[0017] Light is incident from the single-mode fiber A1, and when the light is transmitted to the convex cone dislocation fusion joint, the light in the single-mode fiber 1 is coupled into the single-mode fiber B2 and the single-mode fiber C3 to rea...

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Abstract

The invention belongs to the technical field of optical fiber devices and relates to a manufacturing method of a 1*2 optical fiber beam splitter based on convex cone welding. Staggered convex cone welding is conducted on a single mode fiber A, a single mode fiber B and a single mode fiber C by using a welding machine. The manufacturing method comprises the steps that coating layers of the single mode fiber A, the single mode fiber B and the single mode fiber C are stripped, end faces are cut flat, the single mode fiber A is put at one end of the welding machine, the single mode fiber B and thesingle mode fiber C are put at the other end of the welding machine, the staggering distance between the single mode fiber A and the single mode fiber B and the single mode fiber C is adjusted according to different target splitting ratio, and welding parameters are adjusted to form convex cone welding. The method adopts staggered convex cone welding, welding is simple, the repeatability is high,the diameter at the splitting position is larger, the mechanical strength is high, and the splitting ratio is adjustable.

Description

technical field [0001] The invention belongs to the technical field of optical fiber devices, and relates to a method for manufacturing a 1x2 optical fiber beam splitter based on convex cone fusion. Background technique [0002] Optical fiber beam splitter is a kind of optical fiber passive device used for transmitting and distributing optical signals. Optical fiber beam splitters generally have the following characteristics: First, the device is composed of optical fibers and is an all-fiber device; second, the splitting and combining of optical fields are mainly achieved through mode splitting; third, optical signal transmission has directional . According to the beam splitting principle of light, people have designed a variety of optical fiber beam splitter structures. Including: X-type fiber splitter, star fiber splitter, double clad fiber splitter, fiber Bragg grating splitter, long period fiber grating splitter, Bragg fiber splitter, photonic crystal fiber splitter ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/255G02B6/26
CPCG02B6/2551G02B6/2555G02B6/26
Inventor 赵勇李雪刚
Owner NORTHEASTERN UNIV
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