Optical device and optical module
By adopting the design of integrated injection molding of the first groove body and multiple first collimating lenses in the optical device, the problem of high production cost of the existing optical module is solved, the effect of reducing costs and improving production efficiency is achieved, and the use is improved time optionality.
Patent Information
- Application Number
- CN202420415333.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-04
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-03-04
AI Technical Summary
The production cost of existing optical modules is high, which limits the further development of their applications, especially in the high demand 800G DR8/AOC optical modules. The high cost is not conducive to improving the selectivity during use.
The optical device design adopts the integrated injection molding of the first tank body and the plurality of first collimating lenses. By arranging the first tank body and the plurality of first collimating lenses together for injection molding, the production process is simplified and the cost is reduced. costs, and improves production efficiency and product consistency through modular setup.
It reduces the production cost of optical devices, improves production efficiency and product consistency, simplifies operation difficulty, and improves the convenience of docking and coupling, thus improving the selectivity during use.
Smart Images
Figure CN222365109U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of optical communication, in particular to an optical device and an optical module. Background Art
[0002] At present, an optical module that is widely used in the communication field is an optical transceiver module with a photoelectric conversion function. It is a photoelectric conversion device that mainly converts the received optical signal into an electrical signal, and at the same time converts the electrical signal to be sent into an optical signal and then transmits it.
[0003] In existing optical modules, the optical devices used for coupling single-mode photodiode arrays are all constructed by using fiber arrays or glass lenses. The fiber arrays or glass lenses are relatively mature in single-mode optical path coupling, with stable process and optical performance, and are widely used. However, the production of optical devices in the above manner is difficult and costly, which limits the further development of the above application forms. For example, for the 800G DR8 / AOC optical module with huge demand, the cost is high, which is not conducive to improving the selectivity during use. Utility Model Content
[0004] The technical problem to be solved by the embodiments of the present utility model is to provide an optical device and an optical module to solve the problem that the current production cost is high and it is not conducive to improving the selectivity during use.
[0005] One aspect of the utility model discloses an optical device, comprising: a first slot body, used to adapt to an optical fiber plug; a plurality of linear arrays of first collimating lenses, wherein the first collimating lenses are arranged in the first slot body; wherein the first slot body and the first collimating lenses are integrally injection molded.
[0006] Optionally, the optical device further includes a first base body, and the first slot body is fixedly connected to the first base body via a positioning pin.
[0007] Another aspect of the utility model discloses an optical module, including a second slot body, a plurality of second collimating lenses arranged in the second slot body, and the optical device as described above, wherein the second collimating lenses are arranged in a one-to-one correspondence with the first collimating lenses, wherein the second slot body and the second collimating lenses are integrally injection molded.
[0008] Optionally, when the optical device includes a first base body, the optical module includes a second base body corresponding to the first base body, the second groove body is connected to the second base body, and a plurality of photodiodes corresponding to the second collimating lenses are arranged in the second base body.
[0009] Optionally, a reflective surface corresponding to the first collimating lens is disposed in the first base, so that the light incident from the first collimating lens can be reflected to the second collimating lens through the reflective surface.
[0010] Optionally, the number of the first collimating lenses is 4, 8 or 12.
[0011] Optionally, a preset angle θ is formed between the light incident surface and the light emitting surface of the first collimating lens, wherein 6°≤θ≤10°.
[0012] Optionally, the reflecting surface is a plane or a free-form surface.
[0013] Compared with the prior art, the beneficial effects of the optical device and optical module provided by the embodiment of the utility model are: when applied to the optical module, the first slot body can be adapted and connected with the optical fiber plug, and by setting the first slot body and the first injection molding of multiple first collimating lenses, continuous production can be carried out after the mold is adjusted, which can meet the needs of large-scale manufacturing, improve production efficiency and reduce costs. There is no need to adopt the form of manual assembly and splicing, and a modular setting form is directly adopted, which is conducive to reducing the difficulty of operation and improving the convenience of docking coupling. In this way, the current high production cost can be solved. In actual applications, lower-cost devices can be selected to meet the needs, which is conducive to improving the selectivity during use. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The technical solution of the utility model will be further described in detail below with reference to the accompanying drawings and embodiments, in which:
[0015] Figure 1 This is one of the structural schematic diagrams of the optical device provided by the embodiment of the utility model;
[0016] Figure 2 This is the second structural schematic diagram of the optical device provided by the embodiment of the utility model;
[0017] Figure 3 This is a schematic diagram of the structure of the cooperation between the second collimating lens and the second slot body provided by an embodiment of the utility model;
[0018] Figure 4 It is a schematic structural diagram of the coupling of a first collimating lens and a second collimating lens provided in an embodiment of the utility model.
[0019] The reference numerals in the figures are:
[0020] 100, optical device; 110, first slot; 120, first collimating lens; 130, first base; 132, reflecting surface; 140, positioning pin; 210, second slot; 220, second collimating lens; 230, second base; 240, photodiode. DETAILED DESCRIPTION
[0021] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Now, in conjunction with the accompanying drawings, a preferred embodiment of the present utility model is described in detail.
[0022] The embodiment of the utility model provides an optical device 100, comprising: a first slot body 110, for adapting an optical fiber plug; a plurality of linear arrays of first collimating lenses 120, the first collimating lenses 120 being arranged in the first slot body 110; wherein the first slot body 110 and the first collimating lenses 120 are integrally injection molded.
[0023] Specifically, the first slot 110 is docked with the first collimating lens 120 on one hand and with the optical fiber plug on the other hand. During use, the hot-swap function can be realized through the first slot 110. The first collimating lenses 120 are linearly arranged in the first slot 110 along the length direction of the first slot 110. Each first collimating lens 120 can correspond to one optical fiber, or a single optical fiber can be split and correspond to multiple first collimating lenses 120 respectively. In the above manner, the required optical signal can be accessed.
[0024] It should be noted that in the embodiment of the present application, the first trough body 110 and the first collimating lens 120 are integrally injection molded, which is suitable for mass production, can improve production efficiency and reduce costs. Moreover, the produced products have high consistency, which can ensure the accuracy of product size and shape, thereby meeting product quality requirements. Compared with the conventional single glass lens assembly or the form of optical fiber array, the operation difficulty can be greatly reduced, the operation efficiency can be improved, and the manufacturing process is mature and efficient, which is conducive to reducing production costs.
[0025] The optical device 100 provided in the embodiment of the present application, when applied to an optical module, can be adapted and docked with an optical fiber plug through the first slot body 110, and by first setting the first slot body 110 and the plurality of first collimating lenses 120 by injection molding, continuous production can be carried out after the mold is adjusted, which can meet the needs of large-scale manufacturing, improve production efficiency and reduce costs. There is no need to adopt the form of manual assembly and splicing, and a modular setting form can be directly adopted, which is conducive to reducing the difficulty of operation and improving the convenience of docking coupling. In this way, the current high production cost can be solved. In actual applications, lower-cost devices can be selected to meet the needs, which is conducive to improving the selectivity during use.
[0026] like Figure 1 As shown, the optical device 100 further includes a first base body 130 , and the first slot body 110 is fixedly connected to the first base body 130 via a positioning pin 140 .
[0027] Specifically, the first base body 130 is provided to facilitate the stable connection of the first slot body 110. In actual applications, for the convenience of installation, positioning holes can be provided on opposite sides of the first slot body 110. During installation, the positioning pins 140 can be passed through the positioning holes and connected to the first base body 130. The whole process is simple and convenient, which is conducive to improving the convenience of installation.
[0028] The utility model also discloses an optical module, including a second slot body 210, a plurality of second collimating lenses 220 arranged in the second slot body 210, and the optical device 100 in the aforementioned embodiment, wherein the second collimating lenses 220 are arranged in a one-to-one correspondence with the first collimating lenses 120, wherein the second slot body 210 and the second collimating lenses 220 are integrally injection molded.
[0029] Specifically, the second trough 210 accommodates the second collimating lens 220 for docking on the one hand, and docks with the first collimating lens 120 on the other hand. Similarly, the first collimating lens 120 is linearly arranged in the first trough 110 along the length direction of the first trough 110, and each second collimating lens 220 corresponds to a first collimating lens 120, so as to converge the light emitted from the second collimating lens 220 to a specific position through the first collimating lens 120, thereby improving the utilization rate of light. Similarly, the second trough 210 and the second collimating lens 220 are integrally injection molded, which is suitable for mass production, can improve production efficiency and reduce costs. Moreover, the produced products have high consistency, which can ensure the accuracy of the size and shape of the products, thereby meeting the quality requirements of the products. Compared with the conventional single glass lens assembly or the form of optical fiber array, the operation difficulty can be greatly reduced, the operation efficiency can be improved, and the manufacturing process is mature and efficient, which is conducive to reducing production costs. In the process of coupling the first collimating lens 120 and the second collimating lens 220, the operation is simple and convenient, and the success rate of coupling is high, which is conducive to improving production efficiency.
[0030] In an optional embodiment of the present application, Figure 2 As shown, when the optical device 100 includes a first base body 130 , the optical module includes a second base body 230 corresponding to the first base body 130 , the second groove body 210 is connected to the second base body 230 , and a plurality of photodiodes 240 corresponding to the second collimating lenses 220 are arranged in the second base body 230 .
[0031] Specifically, in the process of combining to form the optical module, the first base body 130 and the second base body 230 can be directly docked to realize the coupling between the first collimating lens 120 and the second collimating lens 220. In the actual application process, the relative position between the photodiode 240 and the second collimating lens 220 can be determined in advance by the second base body 230 to form a modular assembly unit, so that the simplicity of the subsequent alignment process can be improved. It can be understood that the first slot body 110 and the second slot body 210 can also be connected to the same bracket. In actual applications, it can be flexibly selected according to the specific setting environment.
[0032] like Figure 2 and Figure 4 As shown, a reflective surface 132 corresponding to the first collimating lens 120 is disposed in the first base 130 , so that the light incident from the first collimating lens 120 can be reflected to the second collimating lens 220 through the reflective surface 132 .
[0033] Specifically, according to the relative positions of the first slot body 110 and the second slot body 210 in the optical module, in the actual application process, the light emitted from the first collimating lens 120 needs to be reflected before it can be incident on the second collimating lens 220. At this time, a reflecting surface 132 corresponding to the first collimating lens 120 can be provided in the first seat body 130 to achieve the purpose of reflection. It can be understood that the reflecting surface 132 needs to be larger than the range of the light spot formed by the light emitted from the first collimating lens 120 at the reflecting surface 132 to avoid light loss and improve the utilization rate of light.
[0034] In an optional embodiment of the present application, the number of the first collimating lenses 120 is 4, 8 or 12.
[0035] Specifically, the number of the first collimating lenses 120 can be flexibly selected according to the actual application environment, wherein the second collimating lenses 220 are arranged in a one-to-one correspondence with the first collimating lenses 120, and therefore, the number of the second collimating lenses 220 is consistent with that of the first collimating lenses 120. It can be understood that the photodiodes 240 are arranged in a one-to-one correspondence with the second collimating lenses 220, and therefore, the number of the photodiodes 240 is also consistent with that of the first collimating lenses 120.
[0036] In an optional embodiment of the present application, a preset angle θ is formed between the light incident surface and the light emitting surface of the first collimating lens 120 , wherein 6°≤θ≤10°.
[0037] In the above form, when the light in the optical fiber enters the first collimating lens 120, the first collimating lens 120 can be used to split the light, and at the same time, the split light is collimated and transmitted through the first collimating lens 120 to ensure the effective utilization of the light. The preset angle θ can be 6°, 8° or 10°, which can be set according to the actual light path transmission situation.
[0038] In an optional embodiment of the present application, the reflective surface 132 is a plane or a free-form surface. In practical applications, the reflective surface 132 is generally set as a plane, and a free-form surface can be used when it is necessary to adjust the parameters of the light to adjust the transmission effect of the light.
[0039] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present utility model rather than to limit it. For those skilled in the art, the technical solutions described in the above embodiments can be modified, or some of the technical features therein can be replaced by equivalents; and all these modifications and replacements should fall within the scope of protection of the claims attached to the present utility model.
Claims
1. An optical device, characterized in that: include: The first slot is used to adapt to the optical fiber plug; A plurality of first collimating lenses in a linear array, wherein the first collimating lenses are arranged in the first slot; Wherein, the first groove body and the first collimating lens are integrally injection-molded.
2. The optical device according to claim 1, characterized in that The optical device further comprises a first seat body, and the first slot body is fixedly connected to the first seat body via a positioning pin.
3. An optical module, characterized in that: It comprises a second groove body, a plurality of second collimating lenses arranged in the second groove body, and the optical device according to claim 1 or 2, wherein the second collimating lenses are arranged in a one-to-one correspondence with the first collimating lenses, wherein the second groove body and the second collimating lenses are integrally injection molded.
4. The optical module according to claim 3, characterized in that: When the optical device includes a first base, the optical module includes a second base corresponding to the first base, the second groove is connected to the second base, and a plurality of photodiodes corresponding to the second collimating lenses are arranged in the second base.
5. The optical module according to claim 4, characterized in that: A reflecting surface corresponding to the first collimating lens is disposed in the first seat, so that the light incident from the first collimating lens can be reflected to the second collimating lens through the reflecting surface.
6. The optical module according to claim 5, characterized in that: The number of the first collimating lenses is 4, 8 or 12.
7. The optical module according to claim 5, characterized in that: A preset angle θ is formed between the light incident surface and the light emitting surface of the first collimating lens, wherein 6°≤θ≤10°.
8. The optical module according to claim 5, characterized in that: The reflecting surface is a plane or a free-curved surface.