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Dual-optical fiber 1*3 V-groove type coupler

A dual-fiber and coupler technology, applied in the field of dual-fiber 1×3 V slot couplers, can solve problems such as inability to achieve 3×3 coupling

Inactive Publication Date: 2012-09-12
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: the 3×3 coupling (1×3 coupling) that cannot be realized by traditional two optical fiber fusion tapers, the traditional fusion taper to achieve 3×3 coupling (1×3 coupling) does not make full use of the optical fiber, This causes problems such as large loss and difficulty in controlling the splitting ratio.

Method used

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  • Dual-optical fiber 1*3 V-groove type coupler
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  • Dual-optical fiber 1*3 V-groove type coupler

Examples

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Embodiment approach 1

[0020] A dual-fiber 1×3 V groove coupler, see figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , including the main fiber 1 and the branch fiber 2, the main fiber 1 is a common single-mode fiber, the diameter of the core 11 is 65 um, and the thickness of the cladding 12 is 30 um; the branch fiber 2 is a common single-mode fiber, the diameter of the core 21 is 65 um, The thickness of the cladding 22 is 30um; the first groove surface 13, the second groove surface 14, the third groove surface 15 of the main optical fiber and the first groove surface 23, the second groove surface 24, the third groove surface 25, the first groove surface of the branch optical fiber The fourth groove surface 26 and the fifth groove surface 27 are flat; the height of the first groove surface 13 and the third groove surface 15 of the main optical fiber is 42.5 um; the long side of the second groove surface 14 is 118.43um, and the short side...

Embodiment approach 2

[0022] A dual-fiber 1×3 V groove coupler, see figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , including main optical fiber 1 and branch optical fiber 2, main optical fiber 1 is plastic optical fiber, core 11 is 65 um in diameter, cladding 12 is 30 um thick; branch optical fiber 2 is plastic optical fiber, core 21 is 65 um in diameter, and cladding 22 is thick 30um; the first groove surface 13, the second groove surface 14, the third groove surface 15 of the main optical fiber and the first groove surface 23, the second groove surface 24, the third groove surface 25, and the fourth groove surface 26 of the branch optical fiber , the fifth groove surface 27 is smooth; the height of the first groove surface 13 and the third groove surface 15 of the main optical fiber is 42.5 um; the long side of the second groove surface 14 is 118.43um, and the short side is 93.44um; The long side of the first groove surface 23 is ...

Embodiment approach 3

[0024] A dual-fiber 1×3 V groove coupler, see figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , including the main fiber 1 and the branch fiber 2, the main fiber 1 is a plastic fiber, the diameter of the core 11 is 65 um, the thickness of the cladding 12 is 30 um; the branch fiber 2 is an ordinary single-mode fiber, the diameter of the core 21 is 65 um, the cladding 22 Thickness 30um; the first groove surface 13, the second groove surface 14, the third groove surface 15 of the main optical fiber and the first groove surface 23, the second groove surface 24, the third groove surface 25, and the fourth groove surface of the branch optical fiber The surface 26 and the fifth groove surface 27 are flat; the height of the first groove surface 13 and the third groove surface 15 of the main optical fiber is 42.5 um; the long side of the second groove surface 14 is 118.43um, and the short side is 93.44um; the branch optical...

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Abstract

A dual-optical fiber 1*3 V-groove type coupler relates to a coupler. The problems of high losses, froward splitting ratio and the like, due to that the traditional fused biconical tapering of two optical fibers is incapable of realizing 3*3 coupling (1*3 coupling) and the optical fibers are not thoroughly utilized by realizing 3*3 coupling (1*3 coupling) through the traditional fused biconical tapering, are solved. The coupler comprises a main optical fiber (1) and a branch optical fiber (2), the two of which are connected through corresponding grooves formed. As the two optical fibers are thoroughly utilized, the coupler is characterized by lower loss, more easily controllable splitting ratio, good stability, simple structure, easy realization and the like. Moreover, the coupler is especially suitable for the fields of optical fiber communication, optical fiber sensing, microwave photon and the like.

Description

Technical field: [0001] The invention relates to a dual optical fiber 1×3 V groove coupler, which is especially suitable for the fields of optical fiber communication, optical fiber sensing, microwave photons and the like. technical background: [0002] With the rapid development of optical fiber communication technology, optical fiber subscriber network, optical fiber CATV, passive optical network, optical fiber sensing technology and other fields, the application of optical fiber coupler is becoming more and more extensive. Relevant experts believe that optical coupler and wavelength division multiplexing Device (WDM) will become a new growth point of passive devices. [0003] Recently, due to the continuous improvement of processing precision (which has reached the order of um), it has become possible to fine-process optical fibers, and it has been widely used in the research and development of optical fiber devices. [0004] Traditional dual-fiber couplers are generally...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/28
Inventor 陈宏尧宁提纲李超油海东郑晶晶贾国栋
Owner BEIJING JIAOTONG UNIV