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Fiber lens coupler and manufacturing method thereof

A fiber lens and coupler technology, applied in the field of optical communication, can solve the problems of high packaging cost and high technical difficulty, and achieve the effects of low packaging difficulty, easy coupling operation and low cost

Pending Publication Date: 2017-09-29
西安盛佳光电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a fiber optic lens coupler and its manufacturing method. The fiber optic lens is pre-embedded in the glass matrix to form a whole. When the laser diode or optical waveguide is coupled and packaged, only the package matrix and the laser diode or The optical waveguide can be coupled and docked, and the manufacturing method of the optical fiber coupler of the present invention has a simple process, which effectively solves the problems of high technical difficulty and high packaging cost caused by the coupling between the existing optical fiber lens and the laser diode or optical waveguide

Method used

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  • Fiber lens coupler and manufacturing method thereof
  • Fiber lens coupler and manufacturing method thereof
  • Fiber lens coupler and manufacturing method thereof

Examples

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Effect test

Embodiment

[0041] Example 1 see figure 1 . A fiber lens coupler, comprising a stepped cuboid substrate 2, the substrate 2 is made of transparent glass materials, such as quartz, borosilicate, single crystal silicon and the like. Such as figure 2 As shown, the substrate 2 is stepped, and the substrate 2 has an upper step 23 and a lower step 21. The central part of the step surface of the upper step 23 of the substrate 2 is provided with a V-shaped groove 22, and the groove 22 runs through the substrate front and rear. On the front and rear end surfaces of the upper step 23, the groove depth of the groove 22 is 0.16mm-0.18mm, and the included angle of the groove 22 is 88°-92°. A U-shaped groove 24 is provided on the front end surface of the groove 22, The U-shaped groove 24 is set on the front end surface of the substrate 2 and runs through the surface of the upper step 23 of the substrate and the bottom surface of the lower end of the substrate up and down. The width of the shaped gro...

Embodiment ２

[0055] see Figure 4 , Figure 5 , Figure 6 . The fiber lens coupler provided in this embodiment is different from Embodiment 1 in that in Embodiment 2, two V-shaped grooves 22 are arranged side by side on the center of the step surface of the step 23 on the substrate 2 of Embodiment 2, and the clip of the two grooves 22 The angles are 58°-62°, and the depth of the groove 22 is 0.17mm-0.20mm. The two V-shaped grooves run through the front and rear end faces of the upper step 23, and the two V-shaped grooves 22 A U-shaped groove 24 is provided on the end surface of the front-end substrate, and the groove width of the two grooves 22 is smaller than that of the U-shaped groove 24 . The cover plate 4 is arranged on the substrate 2 to cover the two V-shaped grooves 22, and an optical fiber lens 1 is placed in each groove 22, and each groove 22 is filled with an adhesive to connect the optical fiber lens 1 with the The base plate 2 and the cover plate 4 are fixed together, the ...

Embodiment 3

[0072] see Figure 7 , Figure 8 , Figure 9 .

[0073] The fiber lens coupler provided in this embodiment is different from Embodiment 2 in that 12 V-shaped grooves 22 are arranged side by side on the step surface of the upper step 23 of the substrate 2 of Embodiment 3, and the 12 grooves are adjacent to each other in sequence. . The cover plate 4 is set on the upper step 23 of the base plate 2 to cover the 12 grooves 22, and a fiber optic lens 1 is placed in each groove 22, and the 12 fiber optic lenses are adjacent to each other and correspond to the 12 grooves one by one. . The lens end of the fiber optic lens in this embodiment is a spherical lens, and each groove 22 is filled with adhesive to fix each fiber lens with the base plate 2 and the cover plate 4 as a whole. The lens ends of the 12 fiber lenses are in a U-shaped The grooves 24 are in a suspended state, and the lens ends of the 12 fiber lenses are aligned with each other. The pigtails of the 12 fiber optic ...

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Abstract

The invention relates to an optical passive device, specifically to a fiber lens coupler and a manufacturing method thereof. Conventional fiber lenses, after metallized treatment, need to be fixed on the front end of a laser diode or optical waveguide to be coupled with the laser diode or the optical waveguide. The packaging technology is difficult, the cost is high, and the output power is low. According to the fiber lens coupler and the manufacturing method thereof disclosed in the invention, the front end of the fiber lens is fixed on a bar-shaped substrate made of glass materials with adhesive, the lens end of the fiber lens is suspended on the end portion of the substrate, a plurality of fiber lenses can be arranged on the substrate in array, and the tail fiber of the fiber lens is connected to a fiber connector. Only coupling and butt joint of a packaging base body and a laser diode or optical waveguide are needed. The manufacturing process of the fiber lens is simple, the problems of high technical difficulty and high packaging cost of the conventional fiber lens coupling package are effectively solved.

Description

technical field [0001] The invention belongs to the field of optical communication and relates to a passive optical device, in particular to an optical fiber lens coupler and a manufacturing method of the optical fiber coupler. Background technique [0002] Fiber optic lenses are used for coupling laser diodes and optical waveguides, and are widely used in sampling, sensor detection, and medical and biological fields. When the fiber lens is used for the coupling of optical waveguide or laser diode, the fiber lens package needs to be fixed on the front end of the laser diode or optical waveguide to receive the energy emitted by the laser diode or optical waveguide. When the package is fixed, the fiber lens The bare fiber section at the front end must be metallized, that is, a 2-3 micron nickel-gold layer is plated on the surface of the bare fiber, and then the metallized fiber lens is welded and fixed on the front end of the laser diode or optical waveguide. In order to achi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/42
CPCG02B6/4206G02B6/4239G02B6/4296
Inventor 李忠志王彬
Owner 西安盛佳光电有限公司
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