CN220472931U

CN220472931U - Ferrule optical fiber detection device

Info

Publication number: CN220472931U
Application number: CN202321806886.XU
Authority: CN
Inventors: 王冲; 费华
Original assignee: Wuhan Raycus Fiber Laser Technologies Co Ltd
Current assignee: Wuhan Raycus Fiber Laser Technologies Co Ltd
Priority date: 2023-07-10
Filing date: 2023-07-10
Publication date: 2024-02-09
Anticipated expiration: 2033-07-10

Abstract

The application discloses lock pin optical fiber detection device, the device includes laser generator and focusing assembly, and laser generator is used for launching the laser beam of predetermineeing power, and focusing assembly is used for focusing the laser beam to the lock pin optical fiber terminal surface of awaiting measuring, in penetrating the lock pin optical fiber of awaiting measuring, the lock pin of awaiting measuring is judged according to awaiting measuring optical fiber brightening and is had the defect. The problem of the poor testing result rate of current lock pin optic fibre low is overcome, can detect various bad of lock pin optic fibre, and the testing result rate of accuracy is high.

Description

Ferrule optical fiber detection device

Technical Field

The application belongs to the technical field of laser detection, and particularly relates to a ferrule optical fiber detection device.

Background

In semiconductor packaging, a ferrule fiber structure is often used, an epoxy resin is adopted to fix an optical fiber and a ceramic ferrule, and then the whole ferrule fiber and a light source are coupled and packaged. In the manufacture of devices, the components used need to be inspected to ensure that the material is acceptable.

In the related art, the optical fiber is detected, but the defect of the ferrule optical fiber cannot be completely detected, and the detection result has low accuracy.

Disclosure of Invention

The embodiment of the application provides a ferrule optical fiber detection device to solve the problem that the accuracy of the existing ferrule optical fiber bad detection result is low.

The embodiment of the application provides a ferrule optical fiber detection device, including:

a laser generator for emitting a laser beam of a preset power;

and the focusing assembly is used for focusing the laser beam to the end face of the to-be-tested ferrule optical fiber and injecting the laser beam into the to-be-tested ferrule optical fiber so as to judge that the to-be-tested ferrule is bad according to the brightness of the to-be-tested ferrule optical fiber.

Optionally, if the tail glue of the core-inserting optical fiber to be tested is shiny, judging that the core-inserting optical fiber to be tested has poor glue dispensing;

and/or if the optical fiber shines, judging that the optical fiber light leakage condition exists in the to-be-tested ferrule optical fiber.

Optionally, the method further comprises:

the body has accommodation space, first mounting groove and second mounting groove have been seted up to the body lateral wall, first mounting groove is used for the installation wait to detect the lock pin optic fibre, makes wait to detect the lock pin of lock pin optic fibre and be located accommodation space is interior, wait to detect the tail of lock pin optic fibre and glue and be located outside the body, the installation of second mounting groove laser generator, focus subassembly install in accommodation space is interior.

Optionally, the method further comprises:

the first mounting groove and the second mounting groove are oppositely arranged, and the focusing assembly is located between the first mounting groove and the second mounting groove.

Optionally, the body has base and apron, first mounting groove with the second mounting groove set up in on the base, the apron with the base can dismantle and be connected.

Optionally, the cover plate is provided with a visible area, and the visible area is opposite to the accommodating space.

Optionally, the focusing assembly includes a focusing lens mounted within the body.

Optionally, the focusing assembly further includes an adjusting member disposed in the body, the adjusting member connects the focusing lens with the body, and the adjusting member is configured to drive the focusing lens to approach or depart from the first mounting groove.

Optionally, the wave band of the laser beam is between 400nm and 700 nm;

and/or the power of the laser generator is more than 100 mW.

Optionally, the laser generator is a red diode.

According to the ferrule optical fiber detection device provided by the embodiment of the application, the focusing assembly is used for focusing the laser beam with preset power emitted by the laser generator onto the end face of the ferrule optical fiber to be tested, the laser beam is emitted into the ferrule optical fiber to be tested, the existence of the ferrule to be tested is judged according to the brightness of the ferrule optical fiber to be tested, if the ferrule optical fiber to be tested does not have any brightness, the optical fiber to be tested is good, the problem that the accuracy of the existing ferrule optical fiber bad detection result is low is solved, various kinds of faults of the ferrule optical fiber can be detected, and the accuracy of the detection result is high.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive effort to a person skilled in the art.

For a more complete understanding of the present application and the advantages thereof, reference is now made to the following descriptions taken in conjunction with the accompanying drawings. Wherein like reference numerals refer to like parts throughout the following description.

Fig. 1 is a schematic structural diagram of a ferrule fiber provided in the present application.

Fig. 2 is a schematic structural diagram of a ferrule optical fiber detection device according to an embodiment of the present application.

FIG. 3 is a split view of a ferrule fiber detection apparatus according to an embodiment of the present application

Fig. 4 is a schematic partial structure diagram of a ferrule optical fiber detection device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

The embodiment of the application provides a ferrule optical fiber detection device to solve the problem that the accuracy of the existing ferrule optical fiber bad detection result is low. The following description will be given with reference to the accompanying drawings.

Referring to fig. 1, a schematic structure of the ferrule fiber provided in the present application is shown in fig. 1.

The ferrule optical fiber 400 comprises a ferrule 410, a metal handle 420, an optical fiber sleeve 430 and an optical fiber 440, wherein the optical fiber sleeve 430 is sleeved on the optical fiber 440, the ferrule 410 is sleeved on the optical fiber sleeve 430, the metal handle 420 is sleeved on the ferrule 410, and glue is used for curing at the position of the optical fiber stripping opening, between the optical fiber 440 and the optical fiber sleeve 430 and between the optical fiber sleeve 430 and the metal handle 420.

Before the laser diode is manufactured, a laser pen is generally used for detecting the core-insert optical fiber, and even if the detection result of the core-insert optical fiber is qualified, a large amount of unqualified laser diodes are still obtained. The study shows that the laser pen can only detect the defect of the optical fiber 440 of the ferrule optical fiber, and the defect of the structure of the installation parts of the optical fiber sleeve 430 and the metal handle 420 can not be detected at the position of the optical fiber stripping opening, between the optical fiber 440 and the optical fiber sleeve 430, and the glue is solidified inside the ferrule and the metal handle, and can not be observed by naked eyes or a microscope.

According to the ferrule optical fiber detection device provided by the embodiment of the application, the laser beam with preset power emitted by the laser generator 100 is focused on the end face of the ferrule optical fiber to be tested by adopting the focusing assembly 300, the laser beam is emitted into the ferrule optical fiber to be tested, the existence of the ferrule to be tested is judged according to the brightness of the ferrule optical fiber to be tested, if the ferrule optical fiber to be tested does not have any brightness, the optical fiber to be tested is good, the problem that the accuracy rate of the existing ferrule optical fiber bad detection results is low is solved, various kinds of faults of the ferrule optical fiber can be detected, and the accuracy rate of the detection results is high.

In order to more clearly illustrate the structure of the ferrule fiber detection apparatus, the ferrule fiber detection apparatus will be described below with reference to the accompanying drawings.

The utility model provides a lock pin optical fiber detection device, includes laser generator 100 and focusing assembly 300, and laser generator 100 is connected with the lock pin optical fiber that awaits measuring light, and laser generator 100 is used for taking place the laser beam of preset power, focuses on the terminal surface of lock pin optical fiber that awaits measuring through focusing assembly 300, and the laser beam penetrates into the lock pin optical fiber that awaits measuring, and it is bad to judge that the lock pin that awaits measuring exists according to the lock pin optical fiber that awaits measuring shines.

It can be understood that if the core-insert optical fiber to be tested is good, the laser beam is emitted from the core-insert optical fiber to be tested, only if the core-insert optical fiber to be tested is bad, the core-insert optical fiber to be tested can be lightened at a certain position, and the user can judge whether the core-insert optical fiber to be tested is bad according to whether the core-insert optical fiber to be tested is lightened, so that the user is prompted, the test is convenient, the test structure is accurate, and the accuracy of the core-insert optical fiber detection structure is improved.

In some embodiments, if the tail glue 450 of the core-insert optical fiber to be tested is shiny, judging that the core-insert optical fiber to be tested has poor glue dispensing; and/or if the optical fiber shines, judging that the optical fiber light leakage condition exists in the core-inserted optical fiber to be tested.

In order to further determine whether the reason for the defect of the core-insert optical fiber to be tested belongs to the defect of the optical fiber or the defect of the mounting structure, the production and processing technology can be improved aiming at different defective parts, if the tail rubber 450 of the core-insert optical fiber to be tested shines, the situation that the point rubber of the core-insert optical fiber to be tested is not bright can be judged, the point rubber position can be baked in the follow-up technology to improve the defect of the point rubber position of the core-insert optical fiber, if the optical fiber 440 of the core-insert optical fiber to be tested shines, the optical fiber 440 is indicated to be faulty, and if the optical fiber 440 and the tail rubber 450 both shines, the point rubber of the core-insert optical fiber to be tested and the optical fiber are both faulty can be judged. The user can intuitively judge the fault reason of the core-spun optical fiber, and has guiding significance for the production and manufacture of the core-spun optical fiber.

Referring to fig. 2, fig. 3 and fig. 4, fig. 2 is a schematic structural diagram of a ferrule optical fiber detection device provided in an embodiment of the present application, fig. 3 is a split diagram of the ferrule optical fiber detection device provided in an embodiment of the present application, and fig. 4 is a schematic partial structural diagram of the ferrule optical fiber detection device provided in an embodiment of the present application.

The laser generator 100 also has a body, such as body 200, disposed with a focusing assembly, such as focusing assembly 300.

The body 200 is provided with an accommodating space 210, a first mounting groove 220 and a second mounting groove 230 are formed in the side wall of the body 200, the first mounting groove 220 is used for mounting an optical fiber with a core insert to be detected, the core insert of the optical fiber with the core insert to be detected is located in the accommodating space 210, the tail glue 450 of the optical fiber with the core insert to be detected is located outside the body 200, the groove wall of the first mounting groove 220 is matched with the outer surface of the metal handle of the optical fiber with the core insert, if a circular through hole is adopted, the metal handle of the optical fiber with the core insert to be detected is fixedly mounted in the first mounting groove 220, the tail glue 450 facing the optical fiber and the optical fiber extend out of the body 200, the user can observe the lighting position conveniently, the second mounting groove 230 is used for mounting the laser generator 100, the laser generator 100 can adopt a red diode, if the circular through hole is adopted, the groove wall of the second mounting groove 230 is matched with the outer surface of the red diode, the red diode is fixed in the second mounting groove 230, the light outlet end of the red diode is located in the accommodating space 210, the red diode is located outside the body 200, can be connected with an external power supply, and the focusing component 300 is connected with the body 200, and fixed in the accommodating space 210.

The body 200 is adopted to fix the laser generator 100 and the core-insert optical fiber to be detected simultaneously, the structure is simple, the installation and the operation are convenient, and the user can observe the shining position conveniently.

In order to ensure that the laser beam can enter the cladding of the core-spun optical fiber to be tested, a focusing assembly 300 is provided, the focusing assembly 300 is installed in the body 200, the focusing assembly 300 is located between the laser generator 100 and the core-spun optical fiber to be tested, and the focusing assembly 300 is used for focusing the laser beam to the end face of the core-spun optical fiber to be tested.

In order to achieve the injection of the laser beam into the stub fiber to be tested, the light-emitting surface of the laser generator 100 may be disposed opposite to the end surface of the stub fiber to be tested, and at this time, the first mounting groove 220 and the second mounting groove 230 are disposed opposite to each other, and the focusing assembly 300 is located between the first mounting groove 220 and the second mounting groove 230. As a variant, the light emitting surface of the laser generator 100 and the end surface of the core-insert optical fiber to be tested are located in different planes, at this time, the first mounting groove 220 and the second mounting groove 230 are also located in different planes, and a reflecting mirror is further disposed in the body 200, so that the optical path of the laser beam can be changed, and the laser beam focused by the focusing assembly 300 is emitted onto the end surface of the core-insert optical fiber to be tested.

On the basis of the above embodiment, the body 200 has the base 240 and the cover plate 250, the first and second mounting grooves 220 and 230 are provided on the base 240, and the cover plate 250 is detachably connected with the base 240.

The base 240 has a first side 241, a second side 242, a third side 243, a fourth side 244, and a bottom 245, the first side 241 is disposed opposite to the third side 243, the second side 242 is disposed opposite to the fourth side 244, two ends of the first side 241 are respectively connected to one ends of the second side 242 and the fourth side 244, two ends of the third side 243 are respectively connected to the other ends of the second side 242 and the fourth side 244, the bottom 245 is mounted on the bottoms of the first side 241, the second side 242, the third side 243, the fourth side 244, and the bottom 245, and the first side 241, the second side 242, the third side 243, the fourth side 244, and the bottom 245 enclose the accommodating space 210, such as an integrally formed rectangular structure.

The first side portion 241, the second side portion 242, the third side portion 243, the fourth side portion 244 and the bottom portion 245 enclose the base 240, the cover plate 250 is rectangular, and covers the base 240, and detachably connected with the base 240 through bolts, the cover plate 250 and the base 240 form a closed space, the focusing assembly 300 is located in the closed space, so that the environment where the focusing assembly 300 is located is clean and dust-free, and the focusing performance of the focusing assembly 300 is improved.

In order to observe the condition that the laser beam is focused on the end face of the core-insert optical fiber to be tested, the cover plate 250 is provided with a visible area, the visible area is opposite to the accommodating space 210, and the whole cover plate 250 can be designed to be transparent, for example, the cover plate 250 is made of toughened glass plates, and the adjustment operation is convenient due to direct viewing in the visible area.

The focusing assembly 300 includes a focusing lens 310, or a collimating lens or other optical components with focusing function may be used, the focusing lens 310 is installed in the body 200, and the laser beam is focused on the end face of the ferrule fiber to be tested by the focusing lens 310.

The focusing lens 310 may be fixed to the bottom 245 of the body 200 by adhesive or may be mounted to the bottom 245 of the body 200 by other coupling members.

In order to implement testing of different stub fibers to be tested, the focusing assembly 300 further includes an adjusting member disposed in the body 200, the adjusting member connecting the focusing lens 310 and the body 200, the adjusting member being configured to drive the focusing lens 310 toward or away from the first mounting groove 220.

The sliding groove can be formed in the bottom 245 of the body 200, the adjusting piece is a sliding block and is in sliding connection with the sliding groove, the focusing lens 310 is fixed on the sliding block, and the focusing lens 310 is driven to move by moving the sliding block so as to adjust the focusing lens 310, so that the adjusting structure is simple, and the adjusting operation is convenient.

The body 200 can be made of metal materials, the metal materials are fast in heat conduction and fast in heat dissipation, the body 200 can be made of injection molding or machining, the machining process is simple, and the machining cost is low.

In order to facilitate the user to observe the light emitting position of the core insert fiber to be tested, the wave band of the laser beam generated by the laser generator 100 is between 400nm and 700nm, and is visible light such as red light, so that the user can observe conveniently.

The preset power of the laser beam emitted by the laser generator 100 is more than 100mW, preferably not more than 200mW, and a bright area can be formed at a bad position, so that the observation of a user is convenient, the accuracy of a test result is ensured, the energy consumption is reduced, and the cost is saved.

In addition, in order to prevent the red light generated by the laser generator 100 from generating heat, the focusing lens 310 may be burned or the performance of the focusing lens 310 may be affected, and a light absorber may be disposed in the body 200, where the absorber is a concave-convex surface disposed on the inner wall of the body 200, so as to protect the focusing lens 310 and improve the service life of the ferrule fiber testing device.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.

In the description of the present application, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more features.

The foregoing has described in detail the ferrule fiber detection apparatus provided in the embodiments of the present application, and specific examples have been applied herein to illustrate the principles and embodiments of the present application, where the foregoing examples are provided to assist in understanding the methods and core ideas of the present application; meanwhile, as those skilled in the art will vary in the specific embodiments and application scope according to the ideas of the present application, the contents of the present specification should not be construed as limiting the present application in summary.

Claims

1. A ferrule fiber detection apparatus, comprising:

a laser generator for emitting a laser beam of a preset power;

and the focusing assembly is used for focusing the laser beam onto the end face of the core inserting optical fiber to be tested and injecting the laser beam into the core inserting optical fiber to be tested so as to judge that the core inserting optical fiber to be tested is bad according to the brightness of the core inserting optical fiber to be tested.

2. The device for detecting a ferrule optical fiber according to claim 1, wherein if the tail glue of the ferrule optical fiber to be tested is shiny, the condition that the ferrule optical fiber to be tested has poor glue dispensing is judged;

3. The ferrule fiber optic detection device of claim 1, further comprising:

the body has accommodation space, first mounting groove and second mounting groove have been seted up to the body lateral wall, first mounting groove is used for the installation to await measuring lock pin optic fibre, makes the lock pin of to await measuring lock pin optic fibre is located accommodation space is interior, the tail of to await measuring lock pin optic fibre is glued and is located outside the body, the installation of second mounting groove laser generator, focusing assembly install in accommodation space is interior.

4. The ferrule fiber optic detection device of claim 3, further comprising:

5. A ferrule fiber optic inspection apparatus according to claim 3 wherein said body has a base and a cover, said first and second mounting slots being disposed on said base, said cover being removably connected to said base.

6. The device of claim 5, wherein the cover plate is provided with a viewing area, the viewing area being opposite the receiving space.

7. A ferrule fiber optic inspection apparatus according to claim 3 wherein said focusing assembly comprises a focusing lens mounted within said body.

8. The device of claim 7, wherein the focusing assembly further comprises an adjusting member disposed within the body, the adjusting member connecting the focusing lens and the body, the adjusting member configured to drive the focusing lens toward or away from the first mounting groove.

9. The ferrule fiber optic detection device of claim 1, wherein the wavelength band of the laser beam is between 400nm and 700 nm;

and/or, the preset power is more than 100 mW.

10. The ferrule fiber optic inspection apparatus according to claim 1 wherein said laser generator is a red light diode.