Tail pipe with photoelectric detection function

Abstract

The invention discloses a tail tube with photoelectric detection, and the tail tube comprises a connecting piece, one side of the connecting piece in the X-axis direction is used for being connected with an insertion core, and the other side of the connecting piece in the X-axis direction is used for being connected with a pump; the photoelectric detection assembly comprises a PD photoelectric detection transmitting end and a PD photoelectric detection receiving end which are arranged on the two sides of the Y-axis direction of the connecting piece respectively. According to the invention, the photoelectric detection assembly is additionally arranged on the connecting piece, so that the connecting piece not only can play a role in connecting the insertion core and the pump, but also can enable the PD photoelectric detection receiving end to receive an optical signal through the cooperation of the PD photoelectric detection transmitting end and the PD photoelectric detection receiving end when the insertion core is not assembled or not assembled in place; the installation condition of the ferrule is judged through the signal change of the PD photoelectric detection receiving end, meanwhile, the protection assembly is additionally arranged on the connecting piece, pollutants can be prevented from entering the pump, and therefore the purposes that assembly detection can be conducted on the ferrule, and burning loss and pollution of the ferrule can be isolated can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of semiconductor lasers, and in particular to a tail pipe with photoelectric detection. Background Art

[0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] Semiconductor laser is a laser that uses semiconductor materials as working substances and is widely used in communications, manufacturing, medical and national defense fields.

[0004] In the daily production process of semiconductor lasers, the following problems exist:

[0005] 1. There are problems with missing ferrules and inadequate ferrule assembly, which leads to quality problems in device products;

[0006] 2. The window piece is a key component for protecting the cleanliness of the devices in the semiconductor laser cavity. After the semiconductor laser is burned, the window piece often needs to be replaced in time. When replacing the window piece, the pump needs to be opened and then sealed after replacement. Frequent opening and sealing of the cover will seriously affect the airtightness of the pump. Frequent opening and sealing will cause the pump to be scrapped, resulting in a large amount of cost losses. Summary of the invention

[0007] The purpose of the present invention is to provide a tail pipe with photoelectric detection to solve the above-mentioned shortcomings, so as to achieve the purpose of not only assembling and detecting the ferrule, but also isolating the ferrule from burning and pollution.

[0008] In order to solve the above technical problems, the present invention adopts the following technical solution: a tail pipe with photoelectric detection, comprising:

[0009] A connector, one side of the connector in the X-axis direction is used to connect with the ferrule, and the other side of the connector in the X-axis direction is used to connect with the pump;

[0010] A photoelectric detection component, the photoelectric detection component comprises a PD photoelectric detection transmitting end and a PD photoelectric detection receiving end respectively arranged on both sides of the Y-axis direction of the connector, the PD photoelectric detection receiving end is used to receive the optical signal emitted by the PD photoelectric detection transmitting end when the ferrule is not spliced ​​into place with the connector;

[0011] The protective component is detachably arranged on one side of the connecting piece in the Z-axis direction, and is used to prevent pollutants from entering the interior of the pump.

[0012] Furthermore, a channel is provided in the connector for transmitting the pump output laser to one side of the core, and the channel consists of an aperture hole section, a first conductive section and a second conductive section that are interconnected. The aperture hole section is located on the side of the connector close to the pump, and the aperture hole section is a stepped hole for removing stray light.

[0013] Furthermore, the PD photoelectric detection transmitting end and the PD photoelectric detection receiving end both include a cover plate detachably connected to the connecting piece and an optical path control structure arranged on the cover plate, the PD photoelectric detection transmitting end also includes an LED lamp arranged on a side of the pump close to the connecting piece, and the PD photoelectric detection receiving end also includes a photodiode arranged on a side of the pump close to the connecting piece;

[0014] The connecting piece is provided with a light hole for light emitted by the LED lamp to be transmitted to one side of the photodiode after being guided by the light path control structure.

[0015] Furthermore, the two optical path control structures are both reflectors, which are used to enable the light emitted by the LED lamp to be received by the photodiode after being reflected twice.

[0016] Further, the optical path control structure corresponding to the PD photoelectric detection transmitting end is a reflector, the optical path control structure corresponding to the PD photoelectric detection receiving end is a spectroscope, an indicator light is provided on the cover plate corresponding to the PD photoelectric detection receiving end, the indicator light is located on the side of the cover plate away from the spectroscope, and a via hole is provided on the cover plate corresponding to the PD photoelectric detection receiving end for light to penetrate the cover plate and irradiate the indicator light;

[0017] The light emitted by the PD photoelectric detection transmitting end is reflected by the reflector and then split into two beams by the beam splitter, one of which is transmitted to the photodiode side, and the other passes through the via hole and irradiates the indicator light.

[0018] Furthermore, the PD photoelectric detection receiving end also includes a light shield mounted outside the indicator light, and a tension spring is arranged between the light shield and the corresponding cover plate. When the tension spring is in a natural state, the indicator light is completely located in the light shield, so that external light cannot enter the connector through the indicator light.

[0019] Furthermore, the protective component includes an end plate detachably connected to the connecting piece, a plug plate which can be inserted into the connecting piece and can isolate the first conductive section is provided on the side of the end plate close to the connecting piece, a window piece is detachably provided on the side of the plug plate close to the second conductive section, a groove for installing the window piece is provided on the plug plate, and a transmission hole for laser transmission is provided on the side of the plug plate away from the window piece, the apertures of the first conductive section and the transmission hole are both smaller than the diameter of the window piece, so as to prevent the window piece from moving out of the groove after the window piece is inserted into place.

[0020] Furthermore, a stopper component is provided on one side of the plug board close to the second conducting section for preventing the window piece from coming out of the sink before the window piece is inserted into the connector;

[0021] The limiting assembly includes a baffle plate slidably arranged on the side of the plug plate close to the second conductive section, a compression spring is arranged between the baffle plate and the end plate, and the baffle plate can prevent the window piece from moving out of the sink groove when the compression spring is not compressed, and a slot for the baffle plate to be inserted and located outside the first conductive section is arranged on the connecting piece, and the slot is used to prevent the baffle plate from following the window piece to move to the first conductive section.

[0022] The beneficial effects of the present invention are embodied in:

[0023] The present invention, by adding a photoelectric detection component to the connecting piece, enables the connecting piece to not only connect the ferrule and the pump, but also utilize the cooperation of the PD photoelectric detection transmitting end and the PD photoelectric detection receiving end. When the ferrule is not assembled or assembled improperly, the PD photoelectric detection receiving end receives the optical signal, and the installation status of the ferrule is judged by the signal change of the PD photoelectric detection receiving end. At the same time, a protective component is also added to the connecting piece, which can block pollutants from entering the inside of the pump, thereby achieving the purpose of not only performing assembly detection on the ferrule, but also isolating the ferrule from burning pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional view of the present invention;

[0025] Figure 2 It is a partial exploded view of the present invention;

[0026] Figure 3 A structural view of the photoelectric detection component of the present invention;

[0027] Figure 4 for Figure 3 A local enlarged schematic diagram of point A shown;

[0028] Figure 5 A partial cross-sectional view of a connecting piece of the present invention;

[0029] Figure 6 It is a structural view of the protection component of the present invention.

[0030] In the figure:

[0031] 1. Connector; 2. Photoelectric detection component; 21. PD photoelectric detection transmitting end; 211. Cover plate; 212. Light path control structure; 213. LED lamp; 22. PD photoelectric detection receiving end; 221. Photodiode; 222. Indicator light; 223. Light shield; 224. Tension spring; 3. Protection component; 31. End plate; 32. Insert plate; 33. Window piece; 4. Insert core; 5. Pump; 6. Channel; 61. Aperture section; 62. First conduction section; 63. Second conduction section; 7. Limiting component; 71. Baffle; 72. Compression spring. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-6 The present invention discloses a tail pipe with photoelectric detection, comprising:

[0034] Connector 1, one side of the connector 1 in the X-axis direction is used to connect with the ferrule 4, and the other side of the connector 1 in the X-axis direction is used to connect with the pump 5;

[0035] The photoelectric detection component 2 includes a PD photoelectric detection transmitting end 21 and a PD photoelectric detection receiving end 22 respectively arranged on both sides of the connector 1 in the Y-axis direction. The PD photoelectric detection receiving end 22 is used to receive the optical signal emitted by the PD photoelectric detection transmitting end 21 when the ferrule 4 is not spliced ​​into place with the connector 1;

[0036] The protection component 3 is detachably disposed on one side of the connecting member 1 in the Z-axis direction, and is used to prevent pollutants from entering the interior of the pump 5 .

[0037] The present invention, by adding a photoelectric detection component 2 to the connector 1, enables the connector 1 to not only connect the ferrule 4 and the pump 5, but also utilize the cooperation of the PD photoelectric detection transmitting end 21 and the PD photoelectric detection receiving end 22. When the ferrule 4 is not assembled or assembled improperly, the PD photoelectric detection receiving end 22 receives the optical signal, and the installation status of the ferrule 4 is judged by the signal change of the PD photoelectric detection receiving end 22. At the same time, a protective component 3 is also added to the connector 1, which can prevent pollutants from entering the pump 5, thereby achieving the purpose of not only performing assembly detection on the ferrule, but also isolating the ferrule from burning pollution.

[0038] In one embodiment, a channel 6 is provided in the connector 1 for transmitting the laser output by the pump 5 to one side of the ferrule 4. The channel 6 is composed of an aperture hole section 61, a first conductive section 62, and a second conductive section 63 which are interconnected. The aperture hole section 61 is located on the side of the connector 1 close to the pump 5, and the aperture hole section 61 is a stepped hole for removing stray light.

[0039] By designing the aperture segment 61 as a stepped hole with a large diameter at both ends and a small diameter in the middle, stray light emitted from the inside of the pump can be removed, effectively preventing the stray light from damaging the photoelectric detection component 2.

[0040] In one embodiment, the PD photoelectric detection transmitting end 21 and the PD photoelectric detection receiving end 22 both include a cover plate 211 detachably connected to the connecting member 1 and an optical path control structure 212 disposed on the cover plate 211, the PD photoelectric detection transmitting end 21 also includes an LED lamp 213 disposed on a side of the pump 5 close to the connecting member 1, and the PD photoelectric detection receiving end 22 also includes a photodiode 221 disposed on a side of the pump 5 close to the connecting member 1;

[0041] A light hole is provided in the connecting member 1 for light emitted by the LED lamp 213 to be guided by the light path control structure 212 and then transmitted to one side of the photodiode 221 .

[0042] The two optical path control structures 212 are both reflectors, which are used to enable the light emitted by the LED lamp 213 to be received by the photodiode 221 after being reflected twice.

[0043] This design allows the power supply and signal transmission ends of the LED lamp 213 and the PD photoelectric detection receiving end 22 to be located inside the pump 5, and the setting of the reflector does not affect the normal transmission of light. Through this layout, the overall size of the tail pipe can be reduced.

[0044] It should be noted that the photoelectric detection component 2 also includes a signal processor and an output device, which cooperate with the PD photoelectric detection transmitting end 21 and the PD photoelectric detection receiving end 22 to achieve the effect of remotely viewing the detection results. The signal processor and the output device are common knowledge in the field, so the specific structural composition and working principle will not be described in detail in this article.

[0045] In one embodiment, the optical path control structure 212 corresponding to the PD photoelectric detection transmitting end 21 is a reflector, the optical path control structure 212 corresponding to the PD photoelectric detection receiving end 22 is a spectroscope, an indicator light 222 is provided on the cover plate 211 corresponding to the PD photoelectric detection receiving end 22, the indicator light 222 is located on the side of the cover plate 211 away from the spectroscope, and a through hole is provided on the cover plate 211 corresponding to the PD photoelectric detection receiving end 22 for light to penetrate the cover plate 211 and irradiate the indicator light 222;

[0046] The light emitted by the PD photoelectric detection transmitting end 21 is reflected by the reflector and then split into two beams by the beam splitter, one of which is transmitted to the photodiode 221 side, and the other passes through the via hole and irradiates the indicator light 222 .

[0047] Such a design ensures that after the light is reflected by the reflector to the spectroscope, one beam of light can still be sensed and received by the PD photoelectric detection receiving end 22 when it is not blocked by the ferrule 4, while the other beam of light can illuminate the indicator light 222, so that the production inspection personnel can observe the changes of the indicator light 222 externally to intuitively judge the installation status of the ferrule 4 to meet different inspection requirements.

[0048] In one embodiment, the PD photoelectric detection receiving end 22 also includes a light shield 223 that is mounted outside the indicator light 222. A tension spring 224 is provided between the light shield 223 and the corresponding cover plate 211. When the tension spring 224 is in a natural state, the indicator light 222 is completely located in the light shield 223, so that external light cannot enter the connector 1 through the indicator light 222.

[0049] With such a design, the indicator light 222 is shielded by the shading hood 223, so that when the shading hood 223 is not subjected to external force, it can prevent external light from entering the connector 1 through the indicator light 222, thereby ensuring that the interior of the connector 1 will not be affected by stray light. When it is necessary to observe the indicator light 222, it is only necessary to pull the shading hood 223 to the side away from the connector 1 to expose the indicator light 222 for observation.

[0050] In one embodiment, the protective component 3 includes an end plate 31 detachably connected to the connector 1, and a plug plate 32 that can be inserted into the connector 1 and can isolate the first conductive section 62 is provided on the side of the end plate 31 close to the connector 1, and a window piece 33 is detachably provided on the side of the plug plate 32 close to the second conductive section 63. A recess for installing the window piece 33 is provided on the plug plate 32, and a transmission hole for laser transmission is provided on the side of the plug plate 32 away from the window piece 33. The apertures of the first conductive section 62 and the transmission hole are both smaller than the diameter of the window piece 33, so as to prevent the window piece 33 from moving out of the recess after the window piece 33 is inserted into place.

[0051] By adding a window piece 33 to the tail pipe structure, the pollution caused by the burning of the core will not directly contaminate the built-in window piece of the pump. The normal use of the pump 5 can be guaranteed by replacing the window piece 33 at that location, thereby avoiding repeated opening of the pump 5 and effectively saving material costs and labor costs.

[0052] In one embodiment, a stopper assembly 7 is provided on one side of the plug board 32 close to the second conductive section 63 to prevent the window sheet 33 from being disengaged from the sink before the window sheet 33 is inserted into the connector 1;

[0053] The limiting assembly 7 includes a baffle 71 slidably arranged on the side of the plug plate 32 close to the second conductive section 63, and a compression spring 72 is arranged between the baffle 71 and the end plate 31. When the compression spring 72 is not compressed, the baffle 71 can prevent the window piece 33 from moving out of the sink groove. A slot for inserting the baffle 71 and located outside the first conductive section 62 is arranged on the connector 1, and the slot is used to prevent the baffle 71 from following the window piece 33 to move to the first conductive section 62.

[0054] Such design enables the baffle 71 to block the window piece 33 from being directly moved out of the sink groove. When the window piece 33 needs to be replaced, the baffle 71 is pushed away from the window piece 33. After the window piece 33 is taken out and replaced, the push on the baffle 71 is released, so that the baffle 71 can be pushed back to its original position by the compression spring 72, and the replaced window piece 33 is continued to be restricted, so that the window piece 33 will not fall out during the insertion into the connector 1, thereby improving the installation convenience. At the same time, due to the limitation of the slot, after the baffle 71 moves a distance following the window piece 33, it is blocked by the connector 1 and cannot continue to move, so that it will not follow the window piece 33 to move to the first conduction section 62, thereby preventing the baffle 71 from affecting the normal transmission of the laser.

[0055] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0056] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0057] In addition, "plurality" means two or more.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A tail pipe with photoelectric detection, characterized in that: include: A connecting member (1), wherein one side of the connecting member (1) in the X-axis direction is used to connect to the insert (4), and the other side of the connecting member (1) in the X-axis direction is used to connect to the pump (5); A photoelectric detection component (2), the photoelectric detection component (2) comprising a PD photoelectric detection transmitting end (21) and a PD photoelectric detection receiving end (22) respectively arranged on both sides of the connector (1) in the Y-axis direction, the PD photoelectric detection receiving end (22) being used to receive the optical signal emitted by the PD photoelectric detection transmitting end (21) when the ferrule (4) is not spliced ​​into place with the connector (1); A protective component (3) is detachably arranged on one side of the connecting member (1) in the Z-axis direction and is used to prevent contaminants from entering the interior of the pump (5).

2. A tail pipe with photoelectric detection according to claim 1, characterized in that: The connecting member (1) is provided with a channel (6) for transmitting the laser output by the pump (5) to one side of the ferrule (4); the channel (6) is composed of an aperture hole section (61), a first conductive section (62) and a second conductive section (63) which are interconnected; the aperture hole section (61) is located on the side of the connecting member (1) close to the pump (5), and the aperture hole section (61) is a stepped hole for removing stray light.

3. The tail pipe with photoelectric detection according to claim 1, characterized in that: The PD photoelectric detection transmitting end (21) and the PD photoelectric detection receiving end (22) both comprise a cover plate (211) detachably connected to the connecting member (1) and an optical path control structure (212) disposed on the cover plate (211); the PD photoelectric detection transmitting end (21) further comprises an LED lamp (213) disposed on a side of the pump (5) close to the connecting member (1); and the PD photoelectric detection receiving end (22) further comprises a photodiode (221) disposed on a side of the pump (5) close to the connecting member (1); The connecting member (1) is provided with a light hole for transmitting light emitted by the LED lamp (213) to one side of the photodiode (221) after being guided by the light path control structure (212).

4. A tail pipe with photoelectric detection according to claim 3, characterized in that: The two optical path control structures (212) are both reflectors, used to enable the light emitted by the LED lamp (213) to be received by the photodiode (221) after being reflected twice.

5. The tail pipe with photoelectric detection according to claim 3, characterized in that: The optical path control structure (212) corresponding to the PD photoelectric detection transmitting end (21) is a reflector, the optical path control structure (212) corresponding to the PD photoelectric detection receiving end (22) is a spectroscope, an indicator light (222) is provided on the cover plate (211) corresponding to the PD photoelectric detection receiving end (22), the indicator light (222) is located on the side of the cover plate (211) away from the spectroscope, and a through hole is provided on the cover plate (211) corresponding to the PD photoelectric detection receiving end (22) for light to penetrate the cover plate (211) and irradiate the indicator light (222); The light emitted by the PD photoelectric detection emission end (21) is reflected by a reflector and then split into two light beams by a spectroscope, one of which is transmitted to one side of the photodiode (221), and the other passes through the via hole and irradiates the indicator light (222).

6. A tail pipe with photoelectric detection according to claim 5, characterized in that: The PD photoelectric detection receiving end (22) further comprises a light shield (223) sleeved outside the indicator light (222), a tension spring (224) being arranged between the light shield (223) and the corresponding cover plate (211), and when the tension spring (224) is in a natural state, the indicator light (222) is completely located in the light shield (223), so that external light cannot enter the connecting member (1) through the indicator light (222).

7. The tail pipe with photoelectric detection according to claim 2, characterized in that: The protection component (3) comprises an end plate (31) detachably connected to the connecting member (1); a plug plate (32) capable of being inserted into the connecting member (1) and capable of blocking the first conducting section (62) is arranged on a side of the end plate (31) close to the connecting member (1); a window sheet (33) is detachably arranged on a side of the plug plate (32) close to the second conducting section (63); a recess for installing the window sheet (33) is provided on the plug plate (32); a transmission hole for laser transmission is provided on a side of the plug plate (32) away from the window sheet (33); the apertures of the first conducting section (62) and the transmission hole are both smaller than the diameter of the window sheet (33), so as to prevent the window sheet (33) from being removed from the recess after the window sheet (33) is inserted into place.

8. The tail pipe with photoelectric detection according to claim 7, characterized in that: A stopper assembly (7) is provided on one side of the plug plate (32) close to the second conductive section (63) for preventing the window sheet (33) from falling out of the sink before the window sheet (33) is inserted into the connector (1); The limiting assembly (7) comprises a baffle (71) slidably arranged on a side of the plug plate (32) close to the second conducting section (63); a compression spring (72) is arranged between the baffle (71) and the end plate (31); when the compression spring (72) is not compressed, the baffle (71) can prevent the window sheet (33) from moving out of the sink groove; and a slot for inserting the baffle (71) and located outside the first conducting section (62) is arranged on the connecting member (1); the slot is used to prevent the baffle (71) from following the window sheet (33) to move to the first conducting section (62).

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