Optical module lens coupling nozzle, device, and method

Abstract

The present application relates to the technical field of optical communication, and provides a lens coupling suction nozzle of an optical module, which comprises a body, the body is provided with a mounting position for mounting a UV lamp, and the body is provided with a light guide hole, the light guide hole is used for guiding light emitted by the UV lamp to the lens. The present application also provides a lens coupling device of an optical module, which comprises a UV lamp and the lens coupling suction nozzle of the optical module, and the UV lamp is mounted on the mounting position of the suction nozzle. The present application also provides a lens coupling method of an optical module. The light emitted from the UV lamp can accurately irradiate the glue below the lens after passing through the light guide hole, because the diameter of the light guide hole is smaller than the size of the UV light spot, thereby solving the problem that the irradiation position of the UV lamp is not accurate. The distance from the UV light to the glue is shortened, and the size of the UV light spot is reduced, so that the glue of the adjacent channel which has been coupled well is not irradiated by the secondary UV light, thereby avoiding the optical power drop caused by the uneven curing of the glue.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of optical communication technology, in particular to a nozzle, device and method for lens coupling of an optical module. BACKGROUND

[0002] Figure 1 And Figure 2 An existing lens coupling UV curing schematic diagram is shown, and a UV lamp is fixed on both sides of the lens. The common coupling collimation lens process has the following problems:

[0003] 1. The UV lamp is fixed on the nozzle, and the position often needs to be calibrated. If there is a slight deviation, the position irradiated by the UV lamp will deviate from the position of the glue, causing uneven curing of the glue on both sides of the lens, resulting in deviation of the lens position, and thus causing a drop in the optical power of the lens coupling.

[0004] 2. When coupling the UV curing of the lens glue of adjacent channels, the residual light of the UV irradiation will irradiate the UV glue of the adjacent channel that has been coupled, causing the glue near the UV irradiation side of the adjacent channel that has been coupled to further cure, and further causing uneven curing of the glue, resulting in further drop in the optical power of the adjacent channel.

[0005] 3. Since the size of the UV lamp is usually more than 2mm, and the spacing between the lenses is usually about 1mm, in addition, the size of the inner cavity of the optical emission sub-module shell is very limited, and the UV lamp cannot be installed too close to the lens to reduce the irradiation range of the residual light of the UV light. SUMMARY

[0006] The purpose of the present application is to provide a nozzle, device and method for lens coupling of an optical module, which can at least solve some of the defects in the prior art.

[0007] To achieve the above purpose, the embodiments of the present application provide the following technical solutions: a nozzle for lens coupling of an optical module, comprising a body, the body having a mounting position for mounting a UV lamp, and the body being provided with a light guide hole, the light guide hole being used to guide and send light emitted by the UV lamp to the lens.

[0008] Further, the inner diameter of the light guide hole is smaller than the diameter of the light spot of the UV lamp.

[0009] Further, the light guide hole has two light guide holes, and the two light guide holes guide and send light of two UV lamps respectively.

[0010] Further, the light guide hole extends from the UV lamp to the height of the lens.

[0011] The embodiment of the present application provides another technical scheme: a device for lens coupling of an optical module, comprising a UV lamp and a suction nozzle for lens coupling of the optical module as described above, wherein the UV lamp is installed on the installation position of the suction nozzle.

[0012] The embodiment of the present application provides another technical scheme: a method for lens coupling of an optical module, comprising the following steps:

[0013] S1, grabbing a collimating lens;

[0014] S2, powering on the laser of the corresponding channel of the collimating lens to be coupled of the light-emitting sub-module;

[0015] S3, adjusting the position of the collimating lens and monitoring the light power from the fiber adapter so that the light power reaches a predetermined target value, and recording the position of the collimating lens in the system;

[0016] S4, lifting the collimating lens and applying UV glue at the position of the collimating lens of the corresponding channel;

[0017] S5, repositioning the collimating lens to the position recorded just now to adjust the position of the collimating lens so that the light power reaches the predetermined target value;

[0018] S6, using the device for lens coupling of the optical module to cure the glue, and then completing the collimating lens coupling of one channel.

[0019] Further, the steps of S1 to S6 are repeated to complete the collimating lens coupling of the other three channels.

[0020] Further, after the collimating lens coupling of the four channels is completed, the light-emitting sub-module is placed in an oven to further cure the glue.

[0021] Compared with the prior art, the present application has the following advantages:

[0022] 1. The light from the UV lamp can accurately irradiate the glue below the lens after passing through the light guide hole because the light guide aperture is smaller than the size of the UV spot, thereby solving the problem of inaccurate UV lamp irradiation position.

[0023] 2. The distance from the UV light to the glue is shortened, and the size of the UV spot is also reduced, so that the glue of the adjacent channels that have been coupled does not receive secondary UV irradiation, thereby avoiding the light power drop caused by uneven glue curing.

[0024] 3. Although the UV lamp cannot be close to the lens, the light guide hole makes the UV light outlet closer to the glue, thereby solving the problem of excessive light spot size caused by the installation of the UV lamp being too far. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a schematic diagram of the existing UV curing side view;

[0026] Figure 2 is a schematic diagram of the existing UV curing front view;

[0027] Figure 3 is a schematic diagram of the side view of the nozzle, light guide hole, UV lamp and collimating lens of the device for lens coupling of the optical module provided by the embodiment of the present application;

[0028] Figure 4 is a schematic diagram of the front view of the nozzle, light guide hole, UV lamp and collimating lens of the device for lens coupling of the optical module provided by the embodiment of the present application;

[0029] In the figure, 1-UV lamp; 2-nozzle; 3-collimating lens; 4-light guide hole; 5-glue. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0031] Please refer to Figure 3 and Figure 4 The embodiment of the present application provides a nozzle 2 for lens coupling of an optical module, which comprises a body, the body has a mounting position for mounting a UV lamp 1, and the body is provided with a light guide hole 4, the light guide hole 4 is used for guiding the light emitted by the UV lamp 1 to the lens. In the embodiment, the size of the two sides of the nozzle 2 is increased (the size of the two sides of the nozzle 2 facing the adjacent lenses is not increased, and the size of the two directions opposite to the light emitting direction of the laser is increased), and the light guide hole 4 is arranged on the corresponding position of the nozzle 2 through which the light spot of the UV lamp 1 passes, the distance from the UV light to the glue 5 is shortened, and the size of the light spot of the UV is reduced, so that the glue 5 of the adjacent channels which have been coupled does not receive secondary UV light, thereby avoiding the light power drop caused by the uneven curing of the glue 5. Preferably, the light guide hole 4 has two, and the two light guide holes 4 guide the light of two UV lamps 1 respectively.

[0032] As an optimization scheme of the embodiment of the present application, please refer to Figure 3 and Figure 4The inner diameter of the light guide hole 4 is smaller than the diameter of the light spot of the UV lamp 1. In this embodiment, the size of the light guide hole 4 is almost the same as the width of the lens (about 0.6mm), but smaller than the UV light spot (the diameter of the UV light spot is usually above 1mm). The light from the UV lamp 1 can accurately irradiate on the glue 5 below the lens after passing through the light guide hole 4, because the diameter of the light guide hole 4 is smaller than the size of the UV light spot, thus solving the problem of inaccurate irradiation position of the UV lamp 1.

[0033] As an optimization scheme of the embodiment of the present application, please refer to Figure 3 and Figure 4 The light guide hole 4 extends from the UV lamp 1 to the height of the lens. In this embodiment, the UV lamp 1 cannot be close to the lens, but the light outlet of the UV light is closer to the glue 5 through the light guide hole 4, thus solving the problem of too large residual light spot caused by too far installation of the UV lamp 1.

[0034] Please refer to Figure 3 and Figure 4 The embodiment of the present application provides a device for coupling of a light module lens, which comprises a UV lamp 1 and the above-mentioned suction nozzle 2 for coupling of a light module lens, and the UV lamp 1 is installed on the installation position of the suction nozzle 2. In this embodiment, the above-mentioned suction nozzle 2 is used in the device for coupling of a light module lens, and the light guide hole 4 can solve the problem of frequent calibration of the position of the UV lamp 1, ensure that the irradiation position of the UV light is always consistent with the position of the glue 5, solve the problem of irradiation of residual light of the UV light on the adjacent channel, avoid the problem of light power drop caused by uneven curing of the glue 5 in the adjacent channel, and solve the problem of too large residual light spot caused by too far installation of the UV lamp 1.

[0035] Please refer to Figure 3 and Figure 4The embodiment of the present application provides a kind of optical module lens coupling method, comprising the following steps: S1, collimating lens 3 is grabbed;S2, the laser of the corresponding channel of collimating lens 3 to be coupled of light emitting submodule is powered on;S3, the position of the collimating lens 3 is adjusted and the light power size from fiber adapter is monitored so that light power reaches predetermined target value, and the position of collimating lens 3 is counted;S4, the collimating lens 3 is lifted, and UV glue 5 is applied on the position point of collimating lens 3 of corresponding channel;S5, the collimating lens 3 is repositioned to the position just counted to adjust the position of collimating lens 3 so that light power reaches predetermined target value;S6, after the above-mentioned optical module lens coupling device is used to cure glue 5, collimating lens 3 coupling of one channel is completed.In the embodiment, the optical module lens coupling device with light guide hole 4 is used to complete curing, which can solve the problem that UV lamp 1 position needs frequent calibration, ensure that the position of UV light irradiation always keeps consistent with the position of glue 5, solve the problem that UV light irradiation residual light irradiates adjacent channel, avoid the problem that light power drops due to uneven curing of glue 5 in adjacent channel, and solve the problem that residual light spot is too large due to too far installation of UV lamp 1.

[0036] As an optimization scheme of the embodiment of the present application, S1 to S6 steps are repeated to complete collimating lens 3 coupling of other three channels.After collimating lens 3 coupling of four channels is completed, light emitting submodule is placed into oven to further cure glue 5.Finally, optical module lens coupling is completed.

[0037] Although the embodiments of the present application have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A nozzle for coupling an optical module lens, comprising a body, characterized in that: The main body has a mounting position for installing a UV lamp, and the main body is provided with a light guide hole. The light guide hole is used to guide the light emitted by the UV lamp to the lens. The inner diameter of the light guide hole is smaller than the diameter of the light spot of the UV lamp. There are two light guide holes, and the two light guide holes respectively guide the light of the two UV lamps. The light guide holes extend from the UV lamp to be flush with the height of the lens.

2. A device for coupling an optical module lens, comprising a UV lamp, characterized in that: It also includes a suction nozzle coupled to the optical module lens as described in claim 1, wherein the UV lamp is mounted on the mounting position of the suction nozzle.

3. A method for coupling an optical module lens, characterized in that, Includes the following steps: S1, grab a collimating lens; S2, power on the laser in the corresponding channel of the collimating lens to be coupled in the light emission submodule; S3, adjust the position of the collimating lens and monitor the optical power coming from the fiber optic adapter so that the optical power reaches the predetermined target value, and calculate the position of the collimating lens in the system. S4, lift the collimating lens and apply UV glue to the collimating lens position of the corresponding channel; S5, Return the collimating lens to the position it was just measured and readjust the position of the collimating lens so that the optical power reaches the predetermined target value. S6, after the adhesive is cured using the optical module lens coupling device as described in claim 2, the collimating lens coupling of one channel is completed.

4. The method for optical module lens coupling as described in claim 3, characterized in that: Repeat steps S1 to S6 to complete the collimating lens coupling for the other three channels.

5. The method for optical module lens coupling as described in claim 4, characterized in that: After the collimating lenses of the four channels are coupled, the light emission sub-module is placed in the oven to further cure the adhesive.

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