Single-transmitting single-receiving optical device provided with tail fiber
By equipped with a single-transmitter and single-receiving device with a pigtail, the direct signal connection between the optical devices is achieved, which solves the high maintenance cost problem caused by the split-and-combination device, improves the integration of the optical device and reduces the maintenance workload.
Patent Information
- Application Number
- CN202422623855.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-10-23
- Filing Date
- 2024-10-29
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-10-29
AI Technical Summary
Existing optical devices need to be equipped with split wave devices during signal transmission, resulting in high maintenance costs and high workload for operators.
A single-transmitter and single-receiving device equipped with a pigtail fiber can realize direct signal connection between the optical devices through an optical fiber pigtail assembly, cancel the split-and-combination device, and adopt an inclined-mounted fiber pigtail assembly and signal processing module to reduce the width and maintenance requirements of the optical device.
It reduces maintenance costs, reduces the use of optical fibers, increases the degree of integration of optical devices, and simplifies maintenance processes.
Smart Images
Figure CN223296178U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of optical devices, and in particular relates to a single-transmitting and single-receiving optical device equipped with a pigtail. Background Art
[0002] Optical devices are optoelectronic components used in optical communication systems to convert electrical signals into optical signals, or vice versa. A single-transmitter, single-receiver optical device is a type of optical device that has both a signal transmitter and a signal receiver.
[0003] In the 4G / 5G fronthaul, multiple single-transmitting and single-receiving optical devices located at the top and bottom of the signal tower need to transmit signals. Therefore, in order to achieve the above-mentioned signal connection, the existing technology usually configures a splitter / combiner device at the top and bottom of the signal tower respectively, and the splitter / combiner devices at the top and bottom of the signal tower are connected by optical fiber. When in use, the optical device first transmits the signal to the splitter / combiner device, and then the splitter / combiner device transmits the signal to the splitter / combiner device at the other end, and the splitter / combiner device at the other end transmits the signal to the optical device at the other end. Figure 11 shown.
[0004] However, in practice, it has been found that the above connection method requires the configuration of a separate splitter / combiner device, which is usually also installed outside the optical module. Therefore, during maintenance, the splitter / combiner device needs to be maintained separately, which increases the workload of operators and leads to increased maintenance costs. Utility Model Content
[0005] The utility model provides a single-transmitting and single-receiving optical device equipped with a pigtail, which aims to solve the problem that conventional optical devices cause heavy workload for operators and high maintenance costs during signal transmission.
[0006] In order to achieve the above object, the utility model provides a single-transmitting and single-receiving optical device equipped with a pigtail, comprising
[0007] A housing, wherein the housing is equipped with a signal transmitting end, a signal receiving end and an optical fiber adapter;
[0008] an optical fiber pigtail assembly, wherein the optical fiber pigtail assembly is mounted on the housing;
[0009] The signal processing module includes a first filter and a first reflector, the first filter and the first reflector correspond to each other, the optical fiber adapter is set corresponding to the first filter, and the optical fiber pigtail assembly is set corresponding to the first reflector.
[0010] The optical devices in this solution are equipped with fiber pigtail assemblies, which enable signal connections with other optical devices. Therefore, instead of transmitting signals to a splitter / combiner, the optical devices in this solution transmit signals to other optical devices, which then connect the top and bottom ends of the signal tower. This solution eliminates the need for splitter / combiner equipment and maintenance, reducing maintenance costs.
[0011] Preferably, since the first filter needs to process optical signals of different wavelengths, and in order to accurately split optical signals of adjacent wavelengths, in this solution, the first filter is installed obliquely inside the shell, and the inclination angle of the first filter is 12 to 14 degrees.
[0012] Preferably, in order to achieve a better light splitting effect, this solution specifically sets the tilt angle of the first filter to 13 degrees.
[0013] Preferably, in order to reduce the width of the entire optical device, the optical fiber pigtail assembly of this solution is installed at an angle to the housing. Compared with installing the optical fiber pigtail assembly vertically on the housing in this solution, it is obvious that the width of the optical device can be designed to be smaller because the optical fiber pigtail extends to the side.
[0014] Preferably, since the optical fiber pigtail assembly is installed at an angle, in order to ensure signal transmission while reducing the width of the optical device, the tilt angle of the optical fiber pigtail assembly is preferably 14 degrees.
[0015] To prevent optical fiber from significantly increasing the width of optical devices, the fiber pigtail assembly described in this solution includes bend-dispersed optical fiber. When using bend-dispersed optical fiber for signal transmission, the bend radius of bend-dispersed optical fiber is smaller than that of ordinary optical fiber, which helps reduce the width of the optical device.
[0016] Preferably, since the optical fiber pigtail assembly is installed at an angle, in order to ensure that the optical signal can be reflected from the first reflector to the optical fiber pigtail assembly, the tilt angle of the first reflector in this solution is 24 to 26 degrees.
[0017] Preferably, in order to ensure that the optical signal can be transmitted to the signal receiving end, the signal processing module described in this scheme also includes a second filter and a second reflector. The second filter is set corresponding to the first filter. The second filter can reflect the optical signal output from the first filter to the second reflector, and the second reflector then reflects the optical signal to the signal receiving end.
[0018] In this solution, the optical signal is transmitted to the signal receiving end through the coordinated arrangement of the second filter and the second reflector, thereby ensuring that the signal receiving end can receive the optical signal output by the optical fiber adapter.
[0019] Preferably, since the second filter needs to process optical signals of different wavelengths, and in order to accurately split optical signals of adjacent wavelengths, in this solution, the second filter is installed obliquely inside the housing, and the inclination angle of the second filter is 12 to 14 degrees.
[0020] Preferably, in order to allow the optical signal to be transmitted from the second reflector to the signal receiving end, the second reflector in this solution is installed obliquely inside the housing, and the inclination angle of the second reflector is 31 to 33 degrees.
[0021] In order to achieve a better light splitting effect, the tilt angle of the second filter in this solution is 13 degrees.
[0022] Preferably, in order to facilitate the installation of the signal processing module inside the housing, the housing in this solution is provided with an assembly opening, and the assembly opening is used for the signal processing module to be installed inside the housing.
[0023] In this solution, the signal processing module is installed through the configured assembly port to ensure that the optical device can work normally.
[0024] The beneficial effect of this utility model is that the optical device in this solution no longer transmits signals to the splitter / combiner device, but instead transmits the signals to other optical devices, which then connect the signals between the upper and lower ends of the signal tower. Therefore, this solution does not require the configuration of a splitter / combiner device, nor does it require maintenance of the splitter / combiner device, thus reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 This is a schematic diagram of the structure of the single-transmitting and single-receiving optical device in Example 1.
[0026] Figure 2 This is a side view of the single-emitting and single-receiving light device in Example 1.
[0027] Figure 3 This is a bottom view of the single-transmitting and single-receiving light device in Example 1.
[0028] Figure 4 This is a perspective diagram of the internal components in Example 1.
[0029] Figure 5 Schematic diagram of the optical signal being transmitted to the optical fiber pigtail assembly.
[0030] Figure 6 This is a schematic diagram of the optical signal being transmitted to the optical fiber adapter.
[0031] Figure 7 Schematic diagram of optical signal transmission to the signal receiving end.
[0032] Figure 8Schematic diagram of the signal transmitter outputting optical signals.
[0033] Figure 9 Schematic diagram of signal transmission at the upper and lower ends of a signal tower.
[0034] Figure 10 This figure shows the connection of optical device pigtails.
[0035] Figure 11 This is a schematic diagram of signal transmission at the upper and lower ends of a signal tower in the prior art.
[0036] The reference numerals include: housing 1, assembly port 11, signal transmitting end 2, isolator 21, collimating lens 22, signal receiving end 3, signal processing module 4, first filter 41, first reflector 42, second filter 43, second reflector 44, fiber optic pigtail assembly 5, fiber optic adapter 6, coupling lens 61. DETAILED DESCRIPTION
[0037] To make the objectives, technical solutions, and advantages of the embodiments more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. When the following description refers to the drawings, unless otherwise indicated, identical numbers in different drawings represent identical or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
[0038] It should be noted that all actions of obtaining signals, information or data in this application are carried out in compliance with the relevant data protection laws and policies of the country where they are located and with the authorization given by the owner of the corresponding device.
[0039] In this disclosure, unless otherwise specified, directional terms such as "inner" and "outer" are defined based on the contours of the corresponding components. Terms such as "first" and "second" are used in this disclosure to distinguish one element from another and do not convey order or importance.
[0040] Example
[0041] A single-transmitter and single-receiver optical device equipped with a pigtail can connect multiple secondary optical devices in series. Therefore, when in use, the optical devices at the lower end of the signal tower can be connected to each other. Similarly, the optical devices at another location can also be connected to each other. Then, the optical devices at the two locations are connected to each other through optical fibers (for details, please refer to Figure 9 and Figure 10(See the public connection diagram.) This setup method eliminates the need for a splitter / combiner, compared to the prior art method of connecting signals via a splitter / combiner, thus reducing maintenance costs. Furthermore, compared to the prior art method of directly connecting optical signals at two locations sequentially via optical fiber, it reduces optical fiber usage and conserves optical fiber resources.
[0042] It should be noted that: using the optical device connection method disclosed in this embodiment, the optical device at the end of the connection does not need a pigtail to connect to other optical devices, so conventional optical devices (such as Figure 10 Of course, the optical device disclosed in this embodiment can also be used, but there is no need to additionally connect the pigtail to other optical devices.
[0043] The single-transmitting and single-receiving optical device configured with a pigtail in this embodiment specifically includes a housing 1 , a signal transmitting end 2 , a signal receiving end 3 , an optical fiber adapter 6 , an optical fiber pigtail assembly 5 and a signal processing module 4 .
[0044] like Figure 1 and Figure 2 As shown, in the embodiment of the present disclosure, the housing 1 serves as an installation base for the installation of the signal transmitting end 2, the signal receiving end 3, the optical fiber adapter 6, the optical fiber pigtail assembly 5 and the signal processing module 4. The housing 1 is preferably made of an integral one-piece molding, and the material of the housing 1 is preferably Kovar alloy, so as to achieve a better heat dissipation effect. The interior of the housing 1 is hollow, and the signal processing module 4 can be installed to ensure signal transmission. Of course, in order to ensure that the signal processing module 4 can be installed into the interior of the housing 1, as shown in FIG. Figure 3 As shown, in the embodiment of the present disclosure, an assembly opening 11 is constructed at the bottom of the housing 1. The assembly opening 11 is used to accommodate the signal processing module 4, ensuring that the signal processing module 4 can be installed into the interior of the housing 1. A cover is also provided at the assembly opening 11. After the signal processing module 4 is assembled, the cover is used to seal the assembly opening 11.
[0045] For example, when signal processing module 4 is assembled into housing 1, assembly opening 11 is left open. After signal processing module 4 is assembled, a cover seals assembly opening 11, ensuring that housing 1 remains sealed. The cover can be sealed by welding or other conventional methods.
[0046] like Figure 1 and Figure 2As shown, in the embodiment of the present disclosure, a signal transmitter 2 is mounted at the end of the housing 1. The signal transmitter 2 can be a signal transmitter module conventionally used in optical devices in the prior art, and can emit optical signals. Furthermore, to achieve compatibility with the signal transmitter 2, an isolator 21 and a collimating lens 22 are provided corresponding to the signal transmitter 2 in the embodiment of the present disclosure. The isolator 21 is used to shield interference from reflected light, and the collimating lens 22 is used to collimate the optical signal.
[0047] like Figure 1 and Figure 2 As shown, in order to install the signal receiving terminal 3, a TO mounting base is configured on the top of the housing 1 in the embodiment of the present disclosure, and the signal receiving terminal 3 can be packaged on the housing 1 through the TO mounting base. The signal receiving terminal 3 in the embodiment of the present disclosure can be a PD chip in the prior art.
[0048] like Figure 1 and Figure 2 As shown, the fiber optic adapter 6 in this embodiment is also disposed at the end of the housing 1, and is located at opposite ends of the housing 1 from the signal transmitting end 2. The fiber optic adapter 6 is used to adapt and connect with the optical fiber to achieve optical signal transmission. The fiber optic adapter 6 utilizes a conventional fiber optic adapter 6. To ensure proper operation, a coupling lens 61 is also provided with the corresponding fiber optic adapter 6 in this embodiment. This coupling lens 61 is used to couple collimated light into the optical fiber.
[0049] The fiber pigtail assembly 5 in the embodiment of the present disclosure is mounted on the top of the housing 1. The fiber pigtail assembly 5 is used to establish a signal transmission channel with other optical devices, thereby transmitting optical signals to other optical devices, or receiving optical signals transmitted from other optical signals. The fiber pigtail assembly 5 is mounted on the top of the housing 1 at an angle of 14 degrees, and the optical fiber configured in the fiber pigtail assembly 5 is preferably a bent dispersed optical fiber. Through the above-mentioned arrangement, the height of the optical device can be reduced, the size of the optical device can be smaller, and it is conducive to the integration of the entire optical module.
[0050] In order to transmit the optical signal to the optical fiber pigtail assembly 5, the optical signal is transmitted to the optical fiber adapter, such as Figures 4 to 6As shown, the signal processing module 4 in the embodiment of the present disclosure includes a first filter 41 and a first reflector 42. The first filter 41 is installed inside the housing 1 at an inclination of 12 to 14 degrees, wherein the first filter 41 is more preferably installed at an inclination of 13 degrees. The first reflector 42 is installed inside the housing 1 at an inclination of 24 to 26 degrees, wherein the first reflector 42 is more preferably installed at an inclination of 25 degrees. The first filter 41 is arranged corresponding to the optical fiber adapter 6, and the optical signal emitted from the optical fiber adapter 6 can be transmitted to the first filter 41. The first reflector 42 is arranged below the first filter 41, and the first reflector 42 is arranged corresponding to the first filter and the optical fiber pigtail assembly 5, and the optical signal emitted from the optical fiber pigtail assembly 5 can be irradiated to the first reflector 42.
[0051] like Figure 5 As shown, the path of the optical signal transmitted from the fiber optic adapter 6 to the fiber pigtail assembly 5 is as follows: the optical signal is output from the fiber optic adapter 6, first transmitted to the first filter 41, and then reflected to the first reflector 42. After receiving the optical signal, the first reflector 42 further reflects the optical signal to the fiber optic pigtail assembly 5, which finally transmits the optical signal to the fiber optic adapter 6 of the other optical device connected to it.
[0052] like Figure 6 As shown, the path when the optical fiber adapter 6 receives the external optical signal through the optical fiber pigtail assembly 5 is: the optical signal is output from the optical fiber pigtail assembly 5, the optical signal is first transmitted to the first reflector 42, the first reflector 42 reflects the optical signal to the first filter 41, the first filter 41 finally reflects the optical signal to the optical fiber adapter 6, and the optical fiber adapter 6 transmits the optical signal to the pigtails or optical fibers of other optical devices connected to it.
[0053] like Figure 4 As shown, in order to transmit the optical signal to the signal receiving end 3, the signal processing module 4 in the embodiment of the present disclosure includes a second filter 43 and a second reflector 44. The second filter 43 is installed inside the housing 1 at an inclination of 12 to 14 degrees, wherein the second filter 43 is more preferably installed at an inclination of 13 degrees. The second reflector 44 is arranged inside the housing 1 at an inclination of 31 to 33 degrees, wherein the second reflector 44 is more preferably installed at an inclination of 32 degrees. The second filter 43 is arranged corresponding to the first filter 41, and the optical signal transmitted from the first filter 41 can be transmitted to the second filter 43. The second reflector 44 is arranged below the second filter 43, and the second reflector 44 is arranged corresponding to the second filter 43 and the signal receiving end 3. The optical signal reflected from the second filter 43 can be reflected to the second reflector 44, and the second reflector 44 then reflects the optical signal to the signal receiving end 3.
[0054] like Figure 7As shown, the optical signal transmission path to the signal receiving end 3 is as follows: the optical signal is output from the optical fiber adapter 6, first transmitted to the first filter 41, and then transmitted to the second filter 43. The second filter 43 reflects the optical signal to the second reflector 44. After receiving the optical signal, the second reflector 44 reflects the optical signal back to the signal receiving end 3.
[0055] Since the second filter 43 is also set corresponding to the signal transmitting end 2. Figure 8 As shown, the path of the optical signal transmitted to the optical fiber adapter 6 is as follows: the signal transmitting end 2 sends out the optical signal, which passes through the isolator 21 and the collimating lens 22 in sequence. Then, the optical signal passes through the second filter 43 and the first filter 41 in sequence, and finally the optical signal is transmitted to the optical fiber adapter 6.
[0056] The above is only an embodiment of the present invention, and the common knowledge of the specific structure and characteristics of the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, and these should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.
Claims
1. A single-transmitter and single-receiver optical device equipped with a pigtail, characterized in that: include A housing, wherein the housing is equipped with a signal transmitting end, a signal receiving end and an optical fiber adapter; an optical fiber pigtail assembly, wherein the optical fiber pigtail assembly is mounted on the housing; The signal processing module includes a first filter and a first reflector, the first filter and the first reflector correspond to each other, the optical fiber adapter is set corresponding to the first filter, and the optical fiber pigtail assembly is set corresponding to the first reflector.
2. The single-transmitter-single-receiver optical device according to claim 1, characterized in that: The first filter is installed obliquely inside the housing, and the inclination angle of the first filter is 12 to 14 degrees.
3. The single-transmitter-single-receiver optical device according to claim 2, characterized in that: The inclination angle of the first filter is 13 degrees.
4. The single-transmitting and single-receiving optical device according to claim 1 or 2, characterized in that: The optical fiber pigtail assembly is installed obliquely on the housing.
5. The single-transmitting and single-receiving optical device according to claim 4, characterized in that: The inclination angle of the optical fiber pigtail assembly is 14 degrees; and / or; The fiber optic pigtail assembly includes a bend-dispersing optical fiber.
6. The single-transmitting and single-receiving optical device according to claim 5, characterized in that: The inclination angle of the first reflector is 24 to 26 degrees.
7. The single-transmitting and single-receiving optical device according to claim 1, characterized in that: The signal processing module also includes a second filter and a second reflector. The second filter is set corresponding to the first filter. The second filter can reflect the optical signal output from the first filter to the second reflector, and the second reflector then reflects the optical signal to the signal receiving end.
8. The single-transmitting and single-receiving optical device according to claim 7, characterized in that: The second filter is installed obliquely inside the housing, and the inclination angle of the first filter is 12 to 14 degrees.
9. The single-transmitting and single-receiving optical device according to claim 8, characterized in that: The second reflector is installed obliquely inside the housing, and the inclination angle of the second reflector is 31 to 33 degrees; and / or; The inclination angle of the second filter is 13 degrees.
10. The single-transmitting and single-receiving optical device according to claim 1, characterized in that: The housing is provided with an assembly opening, and the assembly opening is used for the signal processing module to be installed in the housing.