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Optical connector and manufacturing method for optical connector

An optical connector and optical connection technology, which is applied in the coupling of optical waveguides, instruments, optics, etc., can solve the problem of optical characteristic degradation and achieve the effect of suppressing the decline of optical characteristics

Inactive Publication Date: 2016-03-23
SUMITOMO ELECTRIC IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, as described in Japanese Patent Application Laid-Open No. 2005-300596, if the incident / exit plane of the end face of the optical connector is perpendicular to the optical axis of the optical fiber and the GRIN lens, then on the incident / exit plane and the object side The reflected return light reflected at the incident / exit surface of the optical connector end face will be coupled with the optical fiber, resulting in a decrease in optical characteristics

Method used

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  • Optical connector and manufacturing method for optical connector
  • Optical connector and manufacturing method for optical connector
  • Optical connector and manufacturing method for optical connector

Examples

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Effect test

no. 1 Embodiment approach

[0080] figure 1 It is a perspective view showing the optical connector according to the first embodiment of the present invention, figure 2 is along figure 1 The cross-sectional view of the optical connector shown in line II-II. image 3 will be figure 2 Part III shown enlarged while showing the figure, Figure 4 is along figure 2 The cross-sectional oblique view and partial enlarged cross-sectional oblique view of the ferrule on line II-II shown. Figure 5 It is a figure which schematically shows the coupling state (optical connection state) of the light incident / exit part concerning 1st Embodiment, Image 6 It is a figure which schematically shows the coupling state (optical connection state) of the optical connector concerning 1st Embodiment of this invention.

[0081] For convenience of explanation, an XYZ rectangular coordinate system is described in each figure. The X-axis extends along the long-side direction of the front end and the rear end of the incident / e...

no. 2 Embodiment approach

[0122] Figure 10 It is a perspective view showing the optical connector according to the second embodiment of the present invention, Figure 11 is along Figure 10 A cross-sectional view of an optical connector showing the XI-XI line. Figure 12 will be Figure 11 Part XII shown enlarged while showing the figure, Figure 13 is along Figure 10 A partially enlarged cross-sectional view (schematic diagram) of the light incident / exited part along line XI-XI shown. Figure 14 is along Figure 10 A partially enlarged cross-sectional oblique view of the ferrule of the XI-XI line shown. Figure 15 It is a figure which schematically shows the coupling state (optical connection state) of the light incident / exit part concerning 2nd Embodiment, Figure 16 It is a figure which schematically shows the coupling state (optical connection state) of the optical connector concerning 2nd Embodiment of this invention.

[0123] Such as Figure 10 and Figure 11 As shown above, the optic...

no. 3 Embodiment approach

[0137] Figure 17 It is a perspective view showing the optical connector according to the third embodiment of the present invention. Figure 18 It is a figure which schematically shows the coupling state (optical connection state) of the light incident / exit part concerning 3rd Embodiment, Figure 19 It is a figure which schematically shows the coupling state (optical connection state) of the optical connector concerning 3rd Embodiment of this invention.

[0138] Such as Figure 17 As shown, in the optical connector 1B according to the third embodiment, the structure of the guide portion is different from that of the optical connector 1A. Specifically, the optical connector 1B differs from the second embodiment in that the optical connector 1A includes a ferrule 20B instead of the ferrule 20A. Other configurations of the optical connector 1B are the same as those of the optical connector 1A.

[0139] The ferrule 20B differs from the ferrule 20A in that it includes one guide...

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Abstract

An optical connector 1 according to an embodiment includes a plurality of light incidence / emission portions 10 and a ferrule 20, and performs optical connection to an optical connector on the other side. Each of the plurality of light incidence / emission portions 10 includes a waveguide member 11 having a first optical axis L1, and a GRIN lens 12 including a second optical axis L2, one end 12a of the GRIN lens 12 is connected to an end portion 11a of the waveguide member 11 and the other end 12b is provided with an incidence / emission plane 10a. The second optical axis L2 is offset relative to the first optical axis L1 at the end portion 11a of the waveguide member 11. The incidence / emission plane 10a is orthogonal to neither an optical axis of an optical beam emitted from the incidence / emission plane 10a nor an optical axis of an optical beam entering the incidence / emission plane 10a. The ferrule 20 includes guide portions 25, 26 to perform optical connection to the optical connector on the other side.

Description

technical field [0001] The present invention relates to an optical connector and a method for manufacturing the optical connector. Background technique [0002] There is an optical connector configured by accommodating a plurality of optical fibers in a ferrule. When connecting the optical connectors, for example, guide pins are used to position the optical fibers. As such an optical connector, there is an optical connector with a lens in which a lens for magnifying a light beam is arranged at the end of an optical fiber in order to relax the positioning accuracy between optical fibers, and optical connection is performed through the magnified light beam. Such an optical connector is disclosed in Japanese Patent Laid-Open No. 2005-300596. [0003] In the optical connector described in Japanese Unexamined Patent Application Publication No. 2005-300596, a GRIN (Graded Index) lens is arranged at each fiber end in each fiber holding hole of a ferrule, and an optical connection...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/36
CPCG02B6/36G02B6/3616G02B6/32G02B6/3853G02B6/3885G02B6/327G02B6/403G02B6/3825G02B6/3883G02B6/3898G02B3/0087
Inventor 荒生肇佐野知巳佐佐木大
Owner SUMITOMO ELECTRIC IND LTD
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