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Manufacturing method of multimode optical fiber coupler based on single mode light source

A technology of multi-mode fiber and single-mode fiber, which is applied in the field of integrated optics, can solve problems such as unstable splitting ratio of multi-mode fiber couplers, and achieve the effect of improving controllability and production yield

Inactive Publication Date: 2014-07-09
BEIJING AEROSPACE TIMES OPTICAL ELECTRONICS TECH
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Problems solved by technology

[0014] The technical problem to be solved by the present invention is to provide a method for preparing a multimode fiber coupler based on a single-mode light source, so as to solve the problem of unstable splitting ratio of the multimode fiber coupler and improve the stability of the multimode fiber coupler

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  • Manufacturing method of multimode optical fiber coupler based on single mode light source
  • Manufacturing method of multimode optical fiber coupler based on single mode light source
  • Manufacturing method of multimode optical fiber coupler based on single mode light source

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[0036] The method for manufacturing a multimode fiber coupler based on a single-mode light source according to the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

[0037] In the present invention, a single-mode light source is used as the input light source; at the joint between the input optical fiber and the multimode optical fiber, fusion is used to connect; then the multimode optical fiber stripped of the outer coating layer is clamped in parallel with a clamp, as figure 1 As shown; after that, the optical fiber in the clamping part is melted and taped by using a hydrogen-oxygen flame, and then packaged.

[0038] Specifically, the method for preparing a multimode optical fiber coupler based on a single-mode light source according to the present invention includes the following steps:

[0039] S1. Provide two multi-mode optical fibers and a single-mode optical fiber as the light source of the outpu...

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Abstract

The invention provides a manufacturing method of a multimode optical fiber coupler based on a single mode light source. The manufacturing method based on the single mode light source comprises the steps of providing two multimode optical fibers and the light source making a monomode optical fiber as an output optical fiber; welding the monomode optical fiber to one multimode optical fiber; stripping an optical fiber coating layer with a certain length from each multimode optical fiber, and wiping each inner wrapping layer clearly; placing the multimode optical fibers on an absorption platform of tapering equipment, enabling the output ends of the multimode optical fibers to be connected to the splitting ratio on-line monitoring end of the tapering equipment, and using a clamp for enabling the two multimode optical fibers to get close; setting tapering process parameters; starting the tapering equipment so as to conduct tapering on the two multimode optical fibers; conducting packaging of quartz grooves, quartz tubes and stainless steel tubes on an obtained semi-finished product of the multimode optical fiber coupler, and obtaining the multimode optical fiber coupler based on the single mode light source. Through the method, stable coupling, at any splitting ratio, of the multimode optical fiber coupler is achieved, stability of product performance is guaranteed, and the using range of the multimode optical fiber coupler is expanded.

Description

technical field [0001] The invention belongs to the field of integrated optics, and in particular relates to a method for preparing a multimode fiber coupler based on a single-mode light source. Background technique [0002] Multimode fiber coupler is a basic passive device in the field of optical fiber communication and optical fiber sensing, and is widely used in optical fiber data network, communication system and optical fiber sensing system. Compared with single-mode fiber, multimode fiber has lower bending loss, and multimode fiber has irreplaceable functions of single-mode fiber. Multimode couplers have irreplaceable market applications. At present, the preparation methods of multimode fiber couplers are all based on the preparation methods of multimode light sources. [0003] The principle of coupling and splitting of multimode fiber couplers is based on the principle of total reflection of light waves transmitted in optical fibers. In total reflection, the light ...

Claims

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Application Information

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IPC IPC(8): G02B6/255G02B6/245
Inventor 徐永彦夏君磊刘福民李广平
Owner BEIJING AEROSPACE TIMES OPTICAL ELECTRONICS TECH
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