CN210199356U - Optical signal extraction device - Google Patents
Optical signal extraction device Download PDFInfo
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- CN210199356U CN210199356U CN201921414816.3U CN201921414816U CN210199356U CN 210199356 U CN210199356 U CN 210199356U CN 201921414816 U CN201921414816 U CN 201921414816U CN 210199356 U CN210199356 U CN 210199356U
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- connector adapter
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Abstract
The utility model provides an optical signal extraction element, this optical signal extraction element includes: the optical fiber connector adapter comprises an optical fiber connector adapter and an optical fiber taking ceramic ferrule arranged in a C-shaped ceramic sleeve of the optical fiber connector adapter, wherein the optical fiber taking ceramic ferrule comprises a ceramic ferrule, an optical fiber and an optical detector, and the optical fiber is D-shaped; the optical fiber is inserted into an inner hole formed in the axial direction of the ceramic ferrule, a notch is formed in one side of the ceramic ferrule, the top surface of the straight line section of the optical fiber is the bottom surface of the notch, the optical detection piece of the optical detector is close to the straight line section of the optical fiber, and the distance between the top surface of the straight line section of the optical fiber and the fiber core of the optical fiber is a preset value. The utility model provides an optical signal extraction element can realize the extraction of optical signal reliably to the realization is to the intelligent dynamic management of light interconnection port.
Description
Technical Field
The utility model relates to an optical fiber communication technical field, in particular to optical signal extraction element.
Background
The optical fiber communication network hierarchy is mainly divided into a trunk network, a local network, a metropolitan area network and an access network. Optical devices between levels and between levels require that optical fibers be interconnected by adapters (also known as fiber optic connector flanges, of various types, such as FC, SC, ST, LC, D4, DIN, MU, MT, etc.). The number of the interconnection ports is few, and the number of the interconnection ports is thousands, and the different interconnection ports correspond to the signal transmission services in different areas, which cannot be confused. When the port is replaced or the service is changed, the operator must know exactly which port is at which position in which link, so that the operator can switch and operate exactly. With the rapid increase of service functions and number, operators urgently need to dynamically manage all routes of facilities such as optical fiber main distribution frames, optical switch boxes, optical fiber distribution boxes and the like, optical cables, optical fiber physical links and service links for bearing services of each layer of an optical fiber communication network. Further, dynamic management of optical equipment, optical cables, service links and the like of each hierarchy of the optical fiber communication network from construction, service opening and maintenance of a full life cycle is realized, and intensive formation degree, resource accuracy and working efficiency of management are improved.
At present, optical equipment, optical cables, service links and the like of each hierarchy of an optical fiber communication network are managed through paper labels, and after a long time, characters on the paper labels can fade and cannot be seen. Especially outdoor optical fiber distribution box, the environment is abominable, and the word on the paper label disappears very easily. Thereby causing optical interconnect port management failures. The current methods mainly comprise three methods, namely an electronic tag, a fiber grating and a port light extraction method.
The method is that an electronic tag reader-writer is embedded in optical fiber distribution panels of optical equipment, optical cables, service links and the like of each hierarchy of an optical fiber communication network, and an electronic tag ring is sleeved on an optical fiber jumper so as to realize the identification of the optical cables. The technology needs to pair the electronic tag ring on the optical fiber jumper wire and the electronic tag reader-writer embedded in the wiring board and cannot be separated, otherwise, the technology fails to be effectively managed. In addition, since the electronic tag has to be connected to the commercial power, the electronic tag is susceptible to electromagnetic interference, which affects the use of the electronic tag.
In patent No. ZL200910002203.3, a superstructure fiber bragg grating, a heating module, a temperature sensor, and a temperature controller are provided in an optical fiber network, and the reflection wavelength is changed by changing the temperature, thereby realizing the identification of the optical fiber. Firstly, the temperature needs to be strictly controlled, and the method cannot be applied outdoors; in addition, the overall structure size is too large to be used for the optical end interface position; and the cost is high.
The above two methods have the disadvantages more than the advantages, and are not suitable for the full-route dynamic management of optical fiber main distribution frames, optical switch boxes, optical fiber distribution boxes and other facilities, optical cables, optical fiber physical links and service links for bearing services in each level of the optical fiber communication network. The port light taking is realized by adding a small structure at an optical interconnection port, the telecommunication office end introduces a special test signal with the wavelength of 1620nm-1660nm, the optical interconnection port structure detects the test signal, and the communication is subjected to the operations of detection, amplification, coding and the like and then is transmitted back to the telecommunication office end, thereby realizing the intelligent dynamic management of the optical fiber communication network full-route interconnection port.
In the utility model with patent numbers 201820969207.3 and 201820968101.1, a small segment of optical fiber is added to the adapter of two optical fiber ports, so that very weak signal leakage occurs when the optical fiber is butted, and the signal is detected, thereby realizing the extraction of the optical signal. The optical fibers are directly butted, the leaked light is only about 0.02dB, and the signal can be absorbed and cannot be detected due to the fact that air and the like exist in the butting interface.
In the utility model with 201820815053.2, a small bent optical fiber is added to the adapter of two optical fiber ports, and the light leakage is caused by the bending of the optical fiber, and then the detection is performed. The bending radius is too large, and the structure size is too large; the bending radius is too small, the optical fiber transmission loss is sharply increased, and the practicability is not high.
In summary, the reliability of the current optical pickup device is poor, and it is difficult to extract optical signals, which affects the intelligent dynamic management of the optical interconnection port.
SUMMERY OF THE UTILITY MODEL
The utility model provides an optical signal extraction element, its purpose is poor in order to solve the reliability of getting light device at present, is difficult to realize optical signal's extraction, and the influence is to the intelligent dynamic management's of interconnection port problem.
In order to achieve the above object, an embodiment of the present invention provides an optical signal extracting apparatus, including: the optical fiber connector adapter comprises an optical fiber connector adapter and an optical fiber taking ceramic ferrule arranged in a C-shaped ceramic sleeve of the optical fiber connector adapter, wherein the optical fiber taking ceramic ferrule comprises a ceramic ferrule, an optical fiber and an optical detector, and the optical fiber is D-shaped;
the optical fiber is inserted into an inner hole formed in the axial direction of the ceramic ferrule, a notch is formed in one side of the ceramic ferrule, the top surface of the straight line section of the optical fiber is the bottom surface of the notch, the optical detection piece of the optical detector is close to the straight line section of the optical fiber, and the distance between the top surface of the straight line section of the optical fiber and the fiber core of the optical fiber is a preset value.
Wherein, the light-extracting ceramic ferrule is positioned at the central position of the C-shaped ceramic sleeve.
Wherein the preset value is 11.5 to 12.5 micrometers.
Transparent liquid with the refractive index larger than that of the fiber core of the optical fiber is filled between the optical detector and the optical fiber.
The optical fiber connector adapter is characterized in that threads are arranged at two ends of the metal main body of the optical fiber connector adapter, and the optical fiber connector adapter is connected with an optical fiber jumper through the threads.
Wherein the optical fiber is fixed in the inner hole by glue.
The above technical scheme of the utility model at least there is following beneficial effect:
the embodiment of the utility model provides an in, through embedding the ceramic lock pin of the built-in optic fibre of a segment in the C type ceramic sleeve pipe of fiber connector adapter, a side-mounting of this ceramic lock pin has optical detector simultaneously, and this optical detector's signal of telecommunication can be drawn forth through C type ceramic sleeve pipe's notch, therefore can realize optical signal's extraction reliably, is convenient for realize the intelligent dynamic management to the optical interconnection port.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an optical signal extraction device according to an embodiment of the present invention;
fig. 2 is a perspective view of an optical signal extraction device according to an embodiment of the present invention;
fig. 3 is a front view of fig. 2 in an embodiment of the present invention;
fig. 4 is a top view of fig. 2 in an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an optical fiber connector adapter and an optical fiber ferrule according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of the light-extracting ferrule according to the embodiment of the present invention;
fig. 7 is a flowchart of a method for manufacturing the light-extracting ferrule according to an embodiment of the present invention.
[ description of reference ]
1. A fiber optic connector adapter; 11. a C-shaped ceramic bushing; 12. a metal body; 13. installing a positioning ring; 14. mounting a nut; 2. a light-taking ceramic ferrule; 21. a ceramic ferrule; 22. an optical fiber; 23. a light detector; 3. and (4) optical fiber jumpers.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 to 6, an embodiment of the present invention provides an optical signal extraction device, including: the optical fiber connector adapter comprises an optical fiber connector adapter 1 and an optical fiber taking ceramic ferrule 2 arranged in a C-shaped ceramic sleeve 11 of the optical fiber connector adapter 1, wherein the optical fiber taking ceramic ferrule 2 comprises a ceramic ferrule 21, an optical fiber 22 and an optical detector 23, and the optical fiber 22 is D-shaped.
As shown in fig. 6, the optical fiber 22 is inserted into an inner hole axially formed in the ferrule 21, a notch is formed in one side of the ferrule 21, a top surface of a straight line segment of the optical fiber 22 is a bottom surface of the notch, an optical detection piece of the optical detector 23 is close to the straight line segment of the optical fiber 22, and a distance between the top surface of the straight line segment of the optical fiber 22 and a fiber core of the optical fiber 22 is a preset value.
Wherein, in the embodiment of the present invention, the optical fiber 22 may be fixed in the inner hole by glue, and the preset value may be 11.5 to 12.5 micrometers, preferably 12 micrometers. In the embodiment of the present invention, the light-extracting ferrule 2 is located at the center of the C-shaped ferrule 11.
In an embodiment of the present invention, as shown in fig. 5, the optical fiber connector adapter 1 further includes, in addition to the C-shaped ceramic sleeve 11: metal body 12, mounting retaining ring 13 and mounting nut 14. Both ends of the metal main body 12 of the optical fiber connector adapter 1 are provided with threads, and the optical fiber connector adapter 1 is connected with the optical fiber jumper 3 through the threads.
It should be noted that, in the embodiment of the present invention, the optical fiber connector adapter 1 may be any existing optical fiber connector adapter, such as FC, SC, ST, LC, D4, DIN, MU, MT, etc., and thus the structure of the optical fiber connector adapter 1 is not described in too much detail. In practical application, the optical fiber connector adapter 1 is about 4mm longer than the optical fiber connector adapter commonly used at present, because it cannot be too long, otherwise the optical fiber connector adapter 1 is larger in size; nor too short, or the ferrule 21 of the optical ferrule 2 (the ferrule 21 having a length of about 4mm) cannot be fitted with the optical detector 23.
It is worth mentioning that the electrical signal of the optical detector 23 in the ferrule 21 can be led out through the notch of the C-shaped ferrule 11, so as to reliably realize the extraction and detection of the optical signal, and meanwhile, the weak signal method can be used to complete the further processing, which is convenient for realizing the intelligent dynamic management of the optical interconnection port.
In addition, in the embodiment of the present invention, a transparent liquid having a refractive index greater than that of the core of the optical fiber 22 may be filled between the optical detector 23 and the optical fiber 22. Preferably, the transparent liquid has a refractive index slightly greater than the core of the optical fiber 22, and the transparent liquid has substantially no absorption or little absorption in the optical fiber communication band. It should be noted that the preset value is related to the refractive index of the transparent liquid.
In addition, as shown in fig. 7, the embodiment of the present invention further provides a method for manufacturing the light-extracting ferrule, which is applied to the light-extracting ferrule, and the method includes:
After the optical fiber is inserted into the inner hole of the ferrule, the optical fiber is fixed in the inner hole of the ferrule by using glue, and then the parts of the optical fiber exposed out of the two ends of the ferrule are removed, namely the redundant optical fibers at the two ends are removed.
And 72, grinding and polishing the ceramic ferrule from one side of the ceramic ferrule to form a notch on one side of the ceramic ferrule.
The optical fiber is D-shaped after the ceramic chip is polished, and the distance between the bottom surface of the notch and the fiber core of the optical fiber is a preset value which can be 11.5-12.5 micrometers, preferably 12 micrometers.
Specifically, in the embodiment of the utility model, can adopt protruding type little grinding wheel to the pottery lock pin is ground and is thrown, and certainly also can be right through modes such as laser beam machining the pottery lock pin is ground and is thrown.
And 73, placing the optical detector in the notch to obtain the light-taking ceramic ferrule.
And the optical detection piece of the optical detector is close to the straight line section of the optical fiber.
Wherein, in the embodiment of the present invention, the above preparation method further comprises the following steps: transparent liquid with the refractive index larger than that of the fiber core of the optical fiber is filled between the optical detector and the optical fiber so as to enhance the stability of the light-taking ceramic ferrule. Specifically, the refractive index of the transparent liquid is preferably slightly larger than that of the core of the optical fiber. The transparent liquid has substantially no absorption, or very little absorption, in the optical fiber communication band. It should be noted that the preset value is related to the refractive index of the transparent liquid.
Wherein, in the embodiment of the utility model provides an in, follow the preparation process of above-mentioned ceramic lock pin of lighting, the preparation process of ceramic lock pin of lighting is simple, with low costs. Meanwhile, the overall structure of the light-extracting ceramic ferrule has the advantages of compact structural size, simplicity in installation, long service life, high reliability, convenience in management and the like.
It is worth mentioning that after the optical fiber taking ceramic ferrule prepared by the preparation method is embedded into the C-shaped ceramic sleeve of the optical fiber connector adapter, the optical detector arranged on one side of the ceramic ferrule can be used for realizing the extraction and detection of optical signals, thereby being convenient for realizing the intelligent dynamic management of the optical interconnection port.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. An optical signal extraction apparatus, comprising: the optical fiber connector adapter comprises an optical fiber connector adapter and an optical fiber taking ceramic ferrule arranged in a C-shaped ceramic sleeve of the optical fiber connector adapter, wherein the optical fiber taking ceramic ferrule comprises a ceramic ferrule, an optical fiber and an optical detector, and the optical fiber is D-shaped;
the optical fiber is inserted into an inner hole formed in the axial direction of the ceramic ferrule, a notch is formed in one side of the ceramic ferrule, the top surface of the straight line section of the optical fiber is the bottom surface of the notch, the optical detection piece of the optical detector is close to the straight line section of the optical fiber, and the distance between the top surface of the straight line section of the optical fiber and the fiber core of the optical fiber is a preset value.
2. The optical signal extraction device of claim 1, wherein the optical fiber ferrule is located at a center of the C-shaped ferrule.
3. The optical signal extraction device of claim 1, wherein the predetermined value is 11.5 to 12.5 μm.
4. The optical signal extraction device according to claim 1, wherein a transparent liquid having a refractive index greater than that of a core of the optical fiber is filled between the photodetector and the optical fiber.
5. The optical signal extraction device of claim 1, wherein the metal body of the fiber optic connector adapter is threaded at both ends, and the fiber optic connector adapter is connected to the optical fiber jumper via the threads.
6. The optical signal extraction device of claim 1, wherein the optical fiber is secured in the inner bore by glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921414816.3U CN210199356U (en) | 2019-08-28 | 2019-08-28 | Optical signal extraction device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921414816.3U CN210199356U (en) | 2019-08-28 | 2019-08-28 | Optical signal extraction device |
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| CN210199356U true CN210199356U (en) | 2020-03-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110515164A (en) * | 2019-08-28 | 2019-11-29 | 浙江申华电子科技有限公司 | Optical signal extraction element and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110515164A (en) * | 2019-08-28 | 2019-11-29 | 浙江申华电子科技有限公司 | Optical signal extraction element and method |
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| CB03 | Change of inventor or designer information |
Inventor after: Zheng Yu Inventor after: Huang Jinan Inventor before: Zheng Yu Inventor before: Huang Anquan |