CN219041782U - Novel optical fiber isolator inserts and decreases test device - Google Patents
Novel optical fiber isolator inserts and decreases test device Download PDFInfo
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- CN219041782U CN219041782U CN202223201320.2U CN202223201320U CN219041782U CN 219041782 U CN219041782 U CN 219041782U CN 202223201320 U CN202223201320 U CN 202223201320U CN 219041782 U CN219041782 U CN 219041782U
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- optical fiber
- insertion loss
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- isolator
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The utility model provides a novel optical fiber isolator insertion loss testing device which comprises a base, a first light source, a polarization controller, a three-dimensional moving platform, an optical insertion loss instrument and a probe assembly, wherein the first light source, the polarization controller, the three-dimensional moving platform, the optical insertion loss instrument and the probe assembly are respectively arranged on the base, the probe assembly is provided with a first clamp, the first clamp is provided with a first groove, and a first magnet is arranged on the first clamp; the three-dimensional moving platform is provided with a second clamp, the second clamp is provided with a second groove, and the second groove is provided with a detachable optical fiber isolator; the optical fiber isolator is provided with a second magnet, and the magnetism of the second magnet is opposite to that of the first magnet; the optical fiber isolator is connected with an optical fiber interface assembly through an optical cable, and the optical fiber interface assembly is connected with the polarization controller through the optical cable. The utility model can directly input the insertion loss data of the light source test optical fiber isolator at the optical fiber interface assembly end, and the test result is more accurate and the test precision is improved because the optical coupling loss influence is avoided.
Description
Technical Field
The utility model relates to the technical field of optical devices, in particular to a novel optical fiber isolator insertion loss testing device.
Background
With the high-speed development of the technical field of optical communication, products of the optical fiber isolator are increasingly diversified, and the working principle of the optical fiber isolator mainly utilizes the Faraday effect of a magneto-optical crystal. The faraday effect is a phenomenon in which faraday first observed in 1845 that a material having no optical activity rotates the polarization direction of light passing through the material under the influence of a magnetic field, and is also called a magneto-optical effect.
To meet the needs of users, fiber optic isolators need to be updated continuously, and each updated fiber optic isolator needs to be subjected to strict testing and HEFO certification to ensure the performance and reliability thereof. At present, a novel optical fiber isolator is researched and developed by arranging a lens (lens) structure at the front end of the isolator, so that a product has the function of a collimator and the size of an element is reduced, but when a conventional insertion loss testing device is used for detection, as shown in figure 1 of an attached drawing of the specification, the insertion loss is tested by passing light from the collimator to the novel optical fiber isolator and an optical fiber interface assembly (forward light passing according to the use of an optical path of the product), the direction of a light source is from left to right, the light source generates an optical coupling phenomenon on the lens (lens) of the collimator and the lens (lens) of the novel optical fiber isolator, and the light source loss can be caused by the optical coupling phenomenon, so that the insertion loss testing data of the product is inaccurate.
Disclosure of Invention
The utility model provides a novel optical fiber isolator insertion loss testing device, which solves the problem that the conventional optical fiber isolator testing device in the prior art has an optical coupling phenomenon, so that the testing is inaccurate.
The utility model is realized by the following technical scheme:
a novel optical fiber isolator insertion loss testing device comprises:
a base;
the first light source is arranged on the base;
the polarization controller is arranged on the base and is connected with the first light source through an optical cable;
the three-dimensional mobile platform is arranged on the base;
the optical insertion loss instrument is arranged on the base; and
the probe assembly is arranged on the base and is electrically connected with the optical insertion loss instrument through a wire;
the probe assembly is provided with a first clamp, the first clamp is provided with a first groove, and the first clamp is provided with a detachable first magnet;
the three-dimensional moving platform is provided with a second clamp, the second clamp is provided with a second groove, and the second groove is provided with a detachable optical fiber isolator;
the fiber optic isolator has a second magnet that is magnetically opposite the first magnet;
the optical fiber isolator is connected with an optical fiber interface assembly through an optical cable, and the optical fiber interface assembly is connected with the polarization controller through the optical cable.
Further technical scheme is, the probe subassembly includes:
the support rod is fixed on the base; and
a receiving housing fixed to the support bar;
wherein the receiving housing is provided with a receiving groove which is aligned with the first groove;
and a receiving probe is arranged in the receiving shell and is electrically connected with the optical insertion loss instrument through a wire.
The first clamp and the receiving shell are arranged in a matching mode.
Further technical scheme is, the second anchor clamps include:
the first clamping piece is fixed on the three-dimensional moving platform; and
the second clamping piece is fixed on the first clamping piece;
wherein the first clamping piece and the second clamping piece surround to form the second groove;
and a locking part for locking the optical fiber isolator is arranged on the second clamping piece.
Further technical solution is that the locking member comprises a locking bolt, and the locking bolt fixes the optical fiber isolator in the second groove.
The further technical scheme is that the first magnet is of a ring-shaped structure.
According to a further technical scheme, the three-dimensional moving platform is provided with a fixing plate, and the second clamp is fixed on the fixing plate.
According to a further technical scheme, the first light source is a laser.
The further technical scheme is that the three-dimensional mobile platform comprises:
a first adjusting frame;
a second adjusting frame; and
a third adjusting frame;
wherein the second clamp is fixed on the third adjusting frame.
The base is an optical bread board.
The utility model has the beneficial effects that:
when the optical fiber isolator is used, the three-dimensional moving platform moves the optical fiber isolator to the first clamp, so that the optical fiber isolator is positioned in the first groove of the first clamp, and the first magnet is opposite to the second magnet carried by the optical fiber isolator, so that the magnetic gyroplane effect direction of the optical fiber isolator is changed, the first light source input from the optical fiber interface assembly can smoothly pass through the optical fiber isolator, the insertion loss of the optical fiber isolator is conveniently tested, and the test result is more accurate and the test precision is improved due to no loss influence of optical coupling.
Drawings
FIG. 1 is a state of the art usage diagram;
FIG. 2 is a schematic diagram of the overall structure of the present utility model;
FIG. 3 is an enlarged view at A of FIG. 2;
fig. 4 is a schematic diagram of the optical path of the present utility model.
Reference numerals illustrate:
1. a base; 2. a three-dimensional mobile platform; 3. a polarization controller; 4. an optical cable; 5. a first light source; 6. a wire; 7. an optical insertion loss instrument; 8. an optical fiber interface assembly; 9. a first clamping member; 10. a second clamping member; 11. a locking bolt; 12. a probe assembly; 13. a first magnet; 14. a first clamp; 15. an optical fiber isolator; 16. a second groove; 17. a lens; 18. and a second magnet.
Detailed Description
The present utility model will be described in further detail below in order to make the objects, technical solutions and effects of the present utility model more clear and distinct. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a 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 at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically connected or electrically connected through a wire 6; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
At present, the novel optical fiber isolator 15 is researched and developed by arranging the lens 17 (lens) structure at the front end of the isolator, so that a product has the function of a collimator and the size of an element is reduced, but when the insertion loss of the product is measured, a conventional insertion loss testing device is shown in fig. 1 of the specification, the insertion loss is tested by passing light from the collimator to the novel optical fiber isolator 15 and the optical fiber interface assembly 8 (forward light passing according to the use of an optical path of the product), the direction of a light source is from left to right, the light source generates an optical coupling phenomenon on the lens 17 (lens) of the collimator and the lens 17 (lens) of the novel optical fiber isolator 15, and the light source loss is caused by the optical coupling phenomenon, so that the insertion loss testing data of the product is not accurate enough.
Therefore, in order to improve the insertion loss test precision of the product, the utility model provides an improvement scheme aiming at the technical problems, and the scheme is as follows:
the novel optical fiber isolator 15 insertion loss testing device comprises a base 1, a first light source 5, a polarization controller 3, a three-dimensional moving platform 2 and a probe assembly 12, wherein the first light source 5 is arranged on the base 1, and the first light source 5 is used for transmitting a light source to the polarization controller 3; the polarization controller 3 is arranged on the base 1 and is connected with the first light source 5 through an optical cable 4, and the polarization controller 3 is used for analyzing the influence of polarization characteristics on the performance of optical devices; the three-dimensional moving platform 2 is arranged on the base 1, and the three-dimensional moving platform 2 is used for adjusting the position of the second clamp; the optical insertion loss instrument 7 is arranged on the base 1, the probe assembly 12 is arranged on the base 1 and is electrically connected with the optical insertion loss instrument 7 through a wire 6, and the optical insertion loss instrument 7 is matched with the probe assembly 12 to be used for measuring insertion loss data of the optical fiber isolator 15; the probe assembly 12 is provided with a first clamp 14, the first clamp 14 is provided with a first groove, and the first clamp 14 is provided with a detachable first magnet 13; the three-dimensional moving platform 2 is provided with a second clamp, the second clamp is provided with a second groove 16, and the second groove 16 is provided with a detachable optical fiber isolator 15; the optical fiber isolator 15 has a second magnet 18, the second magnet 18 being magnetically opposite to the first magnet 13; the optical fiber isolator 15 is connected with an optical fiber interface assembly 8 through an optical cable 4, and the optical fiber interface assembly 8 is connected with the polarization controller 3 through the optical cable 4.
In the above technical solution, referring to fig. 2 to 4, the novel optical fiber isolator 15 is a product formed by a metal shell, in which a lens 17 (lens) and the isolator are disposed, and the optical fiber isolator itself is provided with a second magnet 18, and the lens 17 is located at the rear end of the isolator, so that the light source is output from one end of the isolator to one end of the lens 17. Next, insertion loss data refers to insertion loss of the optical device. In addition, the first fixture 14 and the first magnet 13 may be detachably provided in various manners, which will not be described herein, for example: and the clamping connection, the bolt connection and the like are disassembled. The fiber optic isolator 15 is aligned with the fiber optic interface assembly 8 and is on the same horizontal line.
In actual use, the optical fiber isolator 15 is firstly mounted to the second groove 16 of the second clamp, then the second clamp is moved to the first clamp 14 by the three-dimensional moving platform 2, so that the first groove of the first clamp 14 is aligned with the second groove 16 of the second clamp, and the optical fiber isolator 15 is positioned in the first groove of the first clamp 14; because the first clamp 14 is provided with the first magnet 13, the magnetism of the first magnet 13 is opposite to that of the second magnet 18 carried by the optical fiber isolator 15, so that the direction of the magneto-optical effect of the optical fiber isolator 15 is changed, the first light source 5 input from the optical fiber interface assembly 8 can smoothly pass through the optical fiber isolator 15, and at the moment, the IL value displayed on the optical insertion loss instrument 7 is the insertion loss value of the novel optical fiber isolator 15; and because there is no loss influence of optical coupling (optical coupling refers to the device that the original testing device needs to use the collimator and the optical fiber isolator 15, in the process of the device, the lens 17 in the collimator and the lens 17 of the novel optical fiber isolator 15 generate optical coupling, and optical coupling loss can be generated due to the occurrence of the optical coupling phenomenon), therefore, the utility model can not generate the optical coupling phenomenon, so that the insertion loss testing result is more accurate, and the insertion loss testing precision is improved. It is noted that the optical add-drop instrument 7 also needs to be optically zeroed when the device is in use.
In some embodiments, the probe assembly 12 includes a support rod and a receiving housing, the support rod is fixed on the base 1, the receiving housing is fixed on the support rod, the receiving housing is provided with a receiving groove, the receiving groove is aligned with the first groove, a receiving probe is arranged in the receiving housing, and the receiving probe is electrically connected with the optical insertion loss instrument 7 through a wire 6. In this application, the receiving probe is internally provided with a photoelectric sensing chip for detecting insertion loss data passing through the optical fiber isolator 15, and converting and transmitting the insertion loss data to the optical insertion loss instrument 7, so that the insertion loss value displayed by the optical insertion loss instrument 7 is an insertion loss value.
Preferably, the first clamp 14 is adapted to the receiving housing, as shown in fig. 3, the receiving housing has a semicircular upper portion and a square lower portion, the receiving recess has a circular structure, and in actual design, the two are integrally formed, and the first clamp 14 is provided with the first magnet 13; the structure of the scheme is simple, the materials are saved, and the design cost is reduced.
In some embodiments, the second clamp comprises a first clamping member 9 and a second clamping member 10, the first clamping member 9 is fixed on the three-dimensional moving platform 2, the second clamping member 10 is fixed on the first clamping member 9, the first clamping member 9 and the second clamping member 10 surround to form the second groove 16, and a locking component for locking the optical fiber isolator 15 is arranged on the second clamping member 10. In the present application, referring to fig. 3, the first clamping member 9 is a first clamping plate, and a first concave portion is disposed in the middle of the first clamping plate, where the first concave portion has a V-shaped structure; the second clamping piece 10 is a second clamping plate, is of a T-shaped structure, is provided with a second concave part in the middle, and is of a rectangular shape; more specifically, the second clamping piece 10 is fixedly connected with the first clamping piece 9 through a common bolt mode, so that the second clamp is convenient to detach. In actual use, the first clamping member 9 cooperates with the second clamping member 10 to enable the optical fiber isolator 15 to just extend into the second groove 16 and then be locked by the locking member.
Further, the locking member includes a locking bolt 11, and the locking bolt 11 fixes the optical fiber isolator 15 in the second groove 16. In this application, as shown in fig. 3, since the optical fiber isolator 15 is placed in the second groove 16, in order to fix the optical fiber isolator 15, the locking bolt 11 passes through the top of the second clamping member 10, so as to clamp the optical fiber isolator 15, thereby avoiding the random shaking of the optical fiber isolator 15 from affecting the insertion loss test effect of the device.
Preferably, the first magnet 13 has a ring-shaped structure. As shown in fig. 3, since the first clamp 14 has a ring structure, in order to enable the first magnet 13 to be well mounted in the first clamp 14, the first magnet 13 has a ring structure; of course, the first magnet 13 may have other types of structures, such as square or polygonal, and those skilled in the art can select the design according to the actual requirements; it should be noted that it is necessary to ensure that the first magnet 13 can be mounted to the first jig 14 at the time of design, and that the magnetism of the first magnet 13 is opposite to that of the second magnet 18.
In one embodiment, the three-dimensional moving platform 2 is provided with a fixing plate, and the second clamp is fixed on the fixing plate. In this application, as shown in fig. 3, by providing the fixing plate, the second jig is made easy to install.
In one embodiment, the first light source 5 is a laser, and the laser is an existing product, and can emit a light source.
In one embodiment, the three-dimensional moving platform 2 includes a first adjusting frame, a second adjusting frame, and a third adjusting frame, where the second fixture is fixed on the third adjusting frame. In the present application, the three-dimensional moving platform 2 is an existing three-axis moving platform, wherein the first adjusting frame corresponds to a Z-axis adjustment, the second adjusting frame corresponds to an X-axis adjustment, and the third adjusting frame corresponds to a Y-axis adjustment; more specifically, the model of the three-dimensional mobile platform 2 is LD-60-CM. When in actual use, the device is arranged on the existing three-dimensional moving platform 2, so that the distance between the second clamp and the first clamp 14 of the device and the height of the second clamp are adjustable, and the device is convenient for workers to use.
In one embodiment, the base 1 is an optical bread board, and the optical bread board is a honeycomb structure vibration isolation platform plate, and is used as a carrier for optical experiments, medical experiments, high-precision instrument production detection, aerospace experiments and the like, and has the characteristics of high rigidity and low mass ratio, so that the precision of the experiments can be improved, and a firm mounting platform is provided; the experimental accessory is convenient to fixedly mount, the panel is made of high-permeability stainless steel (430), the surface is not rusted, and the cleanliness of a laboratory is ensured; the isolation cup is formed by drawing aluminum in a stamping mode, so that noise can be prevented from vibrating in the isolation cup to cause errors in experiments, meanwhile, dust and water can be prevented, small articles can be prevented from falling into the platform, and cleaning is facilitated; the inner honeycomb core plate adopts a honeycomb-like structure formed by adhering trapezoid thin steel plates to each other with the steel plates interposed therebetween, which can enhance rigidity while reducing the core plate quality.
In summary, in the present utility model, the first magnet 13 is disposed at one end of the optical fiber isolator 15, the first magnet 13 forms a magnetic field, and the magnetic field is opposite to the magnetic field of the second magnet 18 carried by the optical fiber isolator 15, so that the direction of the magneto-optical effect of the optical fiber isolator 15 is changed, and the first light source 5 input from the optical fiber interface assembly 8 can smoothly pass through the optical fiber isolator 15, so as to test the insertion loss of the optical fiber isolator 15, and the test result is more accurate and the test precision is improved because there is no loss influence of optical coupling.
Of course, the present utility model can be implemented in various other embodiments, and based on this embodiment, those skilled in the art can obtain other embodiments without any inventive effort, which fall within the scope of the present utility model.
Claims (10)
1. Novel optical fiber isolator inserts and decreases test device, its characterized in that includes:
a base;
the first light source is arranged on the base;
the polarization controller is arranged on the base and is connected with the first light source through an optical cable;
the three-dimensional mobile platform is arranged on the base;
the optical insertion loss instrument is arranged on the base; and
the probe assembly is arranged on the base and is electrically connected with the optical insertion loss instrument through a wire;
the probe assembly is provided with a first clamp, the first clamp is provided with a first groove, and the first clamp is provided with a detachable first magnet;
the three-dimensional moving platform is provided with a second clamp, the second clamp is provided with a second groove, and the second groove is provided with a detachable optical fiber isolator;
the fiber optic isolator has a second magnet that is magnetically opposite the first magnet;
the optical fiber isolator is connected with an optical fiber interface assembly through an optical cable, and the optical fiber interface assembly is connected with the polarization controller through the optical cable.
2. The novel fiber optic isolator insertion loss testing device of claim 1, wherein the probe assembly comprises:
the support rod is fixed on the base; and
a receiving housing fixed to the support bar;
wherein the receiving housing is provided with a receiving groove which is aligned with the first groove;
and a receiving probe is arranged in the receiving shell and is electrically connected with the optical insertion loss instrument through a wire.
3. The novel fiber isolator insertion loss testing device according to claim 2, wherein the first clamp is adapted to the receiving housing.
4. The novel fiber isolator insertion loss testing device according to claim 2, wherein the second fixture comprises:
the first clamping piece is fixed on the three-dimensional moving platform; and
the second clamping piece is fixed on the first clamping piece;
wherein the first clamping piece and the second clamping piece surround to form the second groove;
and a locking part for locking the optical fiber isolator is arranged on the second clamping piece.
5. The novel fiber optic isolator insertion loss testing device of claim 4, wherein the locking member comprises a locking bolt that secures the fiber optic isolator within the second recess.
6. The novel fiber isolator insertion loss testing device according to claim 1, wherein the first magnet is of a ring-shaped structure.
7. The novel fiber isolator insertion loss testing device according to claim 1, wherein the three-dimensional moving platform is provided with a fixing plate, and the second clamp is fixed on the fixing plate.
8. The novel fiber isolator insertion loss testing device according to claim 1, wherein the first light source is a laser.
9. The novel fiber isolator insertion loss testing device according to claim 1, wherein the three-dimensional moving platform comprises:
a first adjusting frame;
a second adjusting frame; and
a third adjusting frame;
wherein the second clamp is fixed on the third adjusting frame.
10. The novel fiber isolator insertion loss testing device according to claim 1, wherein the base is an optical bread board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223201320.2U CN219041782U (en) | 2022-11-29 | 2022-11-29 | Novel optical fiber isolator inserts and decreases test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223201320.2U CN219041782U (en) | 2022-11-29 | 2022-11-29 | Novel optical fiber isolator inserts and decreases test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219041782U true CN219041782U (en) | 2023-05-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223201320.2U Active CN219041782U (en) | 2022-11-29 | 2022-11-29 | Novel optical fiber isolator inserts and decreases test device |
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| Country | Link |
|---|---|
| CN (1) | CN219041782U (en) |
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- 2022-11-29 CN CN202223201320.2U patent/CN219041782U/en active Active
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