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Optical connection structure

An optical connection and optical ground technology, applied in the directions of optics, optical components, light guides, etc., can solve the problems of damage to the front end of the optical fiber and the end face of the waveguide, unable to realize the optical connection structure, unable to retract the optical fiber holding groove, etc. The effect of saving space and reducing man-hours for manufacturing

Inactive Publication Date: 2010-10-13
RESONAC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] However, in the structure of Patent Document 10, the optical fiber is inserted so as to be arranged on the V-groove in the state where the clamp mechanism is released. Therefore, if the length of the bare fiber part is not processed with high precision, if the length of the bare fiber part is short, the front end of the fiber is too far away from the end face of the optical waveguide; If the end face is too close, it may touch the optical waveguide, damage the front end of the fiber and the end face of the waveguide, and the position of the front end of the fiber deviates
[0021] In addition, as seen in Patent Document 8, etc., if the pressing force at the time of optical fiber insertion is completely released, as described above, the tip of the optical fiber may move in an unexpected direction during optical fiber insertion.
In particular, if the tip of the optical fiber deviates upward, it may not be accommodated in the optical fiber holding groove, and an appropriate optical connection structure may not be realized.

Method used

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Examples

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Embodiment 1

[0120] On one side of a 4 x 40mm PEEK (polyetheretherketone) package made of 4 x 4 x 40mm, optical fiber accommodation grooves with a width of 1.1 mm x length 10 mm x a depth of 2 mm are sequentially provided in series on one side of the 4 x 40 mm, width 1.5 mm x length 20.0 mm × depth 3mm optical waveguide accommodation groove with V-groove and optical fiber accommodation groove width 0.3mm × length 10mm × depth 2mm. Next, a groove for retracting the pressing body with a width of 1.5 mm×length 3 mm×a depth of 2 mm is provided so that when the optical waveguide with a V-groove is housed in the groove for retracting an optical waveguide with a V-groove, the V-groove is placed on the V-groove. The upper surface of the V-groove region which is perpendicular to the V-groove and has the V-groove optical waveguide becomes the bottom surface of the pressing body storage groove.

[0121] Next, a 2-branch optical waveguide in which a V-groove with a length of 2 mm was integrated was in...

Embodiment 2

[0125] In the optical connection structure of the above-mentioned embodiment 1, a through hole H1 with a diameter of 0.7 mm is provided in the center of the packaging component, a through hole H2 with a diameter of 0.75 mm is provided in the center of the pressing body support component, and the packaging component, the optical waveguide, and the pressing body are assembled in advance. body and the pressing body support member, and then insert a stainless steel support rod with a length of 4mm and a diameter of 0.7mm into the through hole H1 and the through hole H2, and integrate the optical connection structure. 2 optical connection structure.

Embodiment 3

[0127] The dimensions of the V-groove optical waveguide substrate storage groove and the optical fiber storage groove are 0.9 mm in width x 8.2 mm in length x 2.0 mm in depth and 0.5 mm in width x 15.9 mm in length x 1.8 mm in depth. Groove optical waveguide, pressing body, and optical fiber, and after clamping the pressing body support member and the bottom surface of the package member with a clip-shaped member, the optical fiber is not bonded with an adhesive, but matching oil is dripped on the end of the optical waveguide, Except for this, in the same manner as in Example 2, the optical connection structure of Example 3 was produced.

[0128] As an optical waveguide with V-groove, a Figure 28 2-branch beam splitter shown. The beam splitter is designed to have a low loss of less than 1dB on the 1 channel side ( Figure 28 port on the upper right), and the 2-channel side is for monitoring ( Figure 28 The lower right mouth) indicates a large loss of about 45dB. As press...

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Abstract

An optical connection structure and an optical connection method for achieving translational and rotational positionings in all of the axial direction and directions perpendicular to the axis of an optical fiber by a combination of a small number of components with a small number of optical connection points and simple structures. The optical fiber connection structure comprises an optical fiber,a pressing body with a circular outer cross-section, and an optical member. The optical member includes an optical component, an optical fiber abutment structure, and an optical fiber holding groove.The optical fiber abutment structure is disposed between the optical component and the optical fiber holding groove. The pressing body is disposed perpendicularly to the optical fiber holding groove.The optical fiber is inserted along the optical fiber holding groove until abutting on the optical fiber abutment structure. The pressing member presses the upper surface of the optical fiber toward the bottom of the optical fiber holding groove to optically connect the optical fiber and the optical component.

Description

technical field [0001] The present invention relates to an optical connection structure for connecting optical fibers and optical components. Background technique [0002] Conventionally, as an optical connection structure for connecting an optical fiber and an optical component, a package for an optical waveguide substrate capable of packaging an optical waveguide and an optical fiber together has been used (for example, refer to Patent Documents 1 and 2). The package described in Patent Document 1 has a structure in which a V-shaped groove for positioning an optical fiber is provided in the lower part of the package, and a V-shaped protrusion for pressing the optical fiber is provided in the upper part of the package. The structure of the package is that when assembling, the optical waveguide substrate and the optical fiber are aligned by positioning the optical waveguide substrate in the lower part of the package and the optical fiber in the groove of the lower part of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/36
CPCG02B6/3692G02B6/3636G02B6/30G02B6/3652Y10T29/49945
Inventor 宫寺信生黑田敏裕鲤渕滋佐佐木恭一
Owner RESONAC CORP
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