Optical module receiving end assembly
By using silicon lenses and diffraction gratings in the optical module receiver assembly, the problem that existing technologies cannot manufacture beams with a 0.25mm pitch was solved, and the fabrication of small light spots was achieved.
Patent Information
- Application Number
- CN202520241480.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-14
AI Technical Summary
Existing optical modules are difficult to manufacture beams with a spacing of 0.25mm, which cannot meet the requirements for small light spots.
A silicon lens and diffraction grating are used to replace traditional wavelength division multiplexing (WDM) components to design the optical module receiver assembly. The silicon lens focuses the beam and the diffraction grating splits it into four beams. A beam spacing of 0.25 mm is achieved using silicon array lenses and prisms.
It has achieved the manufacturing of small light spots with a spacing of 0.25mm, which meets production requirements.
Smart Images
Figure CN223842191U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of light source equipment technology, and in particular to an optical module receiver assembly. Background Technology
[0002] With the development of high-speed data communication and optical communication, transceiver-integrated optical modules are being used on a large scale. At present, the wavelength division multiplexing (WDM) elements in optical modules can produce beams with a spacing of 0.75mm or 0.5mm, but it is difficult to produce beams with a spacing of 0.25mm, which cannot meet the requirements for small light spots with a spacing of 0.25mm. Utility Model Content
[0003] To overcome the existing technical problems, this utility model proposes an optical module receiver component, the specific technical solution of which is as follows:
[0004] An optical module receiver assembly includes an optical interface, an optical transmission component, a capillary, a silicon lens, a diffraction grating, a silicon array lens, and a prism. The optical transmission component connects the optical interface and the capillary. The silicon lens is located between the capillary and the diffraction grating. The silicon array lens is located between the diffraction grating and the prism. A light beam is transmitted from the optical interface to the capillary, and then incident on the silicon lens from the capillary. The light beam is split into four beams by the diffraction grating. The four beams are incident on the prism through the silicon array lens, and the prism reflects the light beams to a focal point.
[0005] Furthermore, the spacing between the four beams is 0.25 mm.
[0006] Furthermore, the beam transmission component is an optical fiber.
[0007] Furthermore, the optical fiber is bonded to the optical interface.
[0008] Furthermore, the capillary, silicon lens, diffraction grating, and silicon array lens are spaced apart.
[0009] Furthermore, the distance between the silicon array lens and the diffraction grating is 5 mm.
[0010] Furthermore, the optical module receiver assembly also includes a substrate, and the capillary, silicon lens, diffraction grating, and silicon array lens are fixed to the substrate.
[0011] Furthermore, the prism is bonded to the silicon array lens, and the prism extends out of the substrate.
[0012] Furthermore, the substrate is rectangular.
[0013] Furthermore, the substrate is glass.
[0014] The advantage of this invention is that by replacing traditional wave-splitting elements with the silicon lens and diffraction grating, small light spots with an interval of 0.25mm can be manufactured, thus meeting production requirements. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of an optical module receiver assembly according to the present invention;
[0016] Figure 2 for Figure 1 A schematic diagram of a wavelength division multiplexing (WDM) component for an optical module receiver.
[0017] Figure 3 for Figure 1 A schematic diagram of beam transmission in an optical module receiver component.
[0018] In the diagram: 1. Optical interface; 2. Optical transmission component; 3. Capillary; 4. Silicon lens; 5. Diffraction grating; 6. Silicon array lens; 7. Prism; 8. Substrate. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] The following is combined with Figure 1-3 Further explanation of the utility model:
[0021] An optical module receiver assembly includes an optical interface 1, an optical transmission component 2, a capillary tube 3, a silicon lens 4, a diffraction grating 5, a silicon array lens 6, a prism 7, and a substrate 8.
[0022] Optical interface 1 is used to receive light.
[0023] Optical transmission component 2 is an optical fiber.
[0024] The substrate 8 is rectangular. Specifically, in this embodiment, the substrate 8 is made of glass.
[0025] The positional relationship of components in an optical module receiver:
[0026] The optical transmission component 2 connects the optical interface 1 and the capillary tube 3. The silicon lens 4 is located between the diffraction grating 5 and the capillary tube 3. The silicon array lens 6 is located between the diffraction grating 5 and the prism 7. The capillary tube 3, silicon lens 4, diffraction grating 5, silicon array lens 6 and prism 7 are fixed to the substrate 8. The capillary tube 3, silicon lens 4, diffraction grating 5 and silicon array lens 6 are spaced apart. The distance between the silicon array lens 6 and the diffraction grating 5 is 5mm. The prism 7 extends out of the substrate 8. Specifically, the capillary tube 3, silicon lens 4, diffraction grating 5 and silicon array lens 6 are bonded to the substrate 8 with UV-cured epoxy resin adhesive. The prism 7 is bonded to the silicon array lens 6.
[0027] The working principle of an optical module receiver component:
[0028] Optical interface 1 receives the light beam, which is transmitted to capillary 3 via optical transmission component 2. The light beam is then incident on silicon lens 4 through capillary 3. The collimated light beam is then incident on diffraction grating 5 through the focusing effect of silicon lens 4. The diffraction grating 5 separates the spectrum, splitting one beam into four beams. Specifically, in this embodiment, the spacing between the four beams is 0.25 μm. The four beams are then incident on silicon array lens 6, and after being focused by silicon array lens 6, they are incident on prism 7. The beams are then reflected by prism 7 to the focal point.
[0029] The advantage of this invention is that it uses a silicon lens 4 and a diffraction grating 5 to replace traditional wave division elements, thereby creating small light spots with a spacing of 0.25 μm, which meets production requirements.
[0030] The above embodiments only illustrate one implementation of the present utility model, and should not be construed as limiting the scope of the utility model patent. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present utility model. These are all equivalent modifications and improvements made to the above embodiments based on the essential technology of the present utility model, and all of these fall within the protection scope of the present utility model.
Claims
1. An optical module receiver assembly, characterized in that: The device includes an optical interface, an optical transmission component, a capillary, a silicon lens, a diffraction grating, a silicon array lens, and a prism. The optical transmission component connects the optical interface and the capillary. The silicon lens is located between the capillary and the diffraction grating. The silicon array lens is located between the diffraction grating and the prism. A light beam is transmitted from the optical interface to the capillary, then incident on the silicon lens from the capillary. The light beam is split into four beams by the diffraction grating, and the four beams are incident on the prism through the silicon array lens. The prism reflects the light beam to a focal point.
2. The optical module receiver assembly according to claim 1, characterized in that: The spacing between the four beams is 0.25 mm.
3. The optical module receiver assembly according to claim 1, characterized in that: The optical transmission component is an optical fiber.
4. The optical module receiver assembly according to claim 3, characterized in that: The optical fiber is bonded to the optical interface.
5. The optical module receiver assembly according to claim 1, characterized in that: The capillary tube, silicon lens, diffraction grating, and silicon array lens are arranged at intervals.
6. The optical module receiver assembly according to claim 5, characterized in that: The distance between the silicon array lens and the diffraction grating is 5 mm.
7. The optical module receiver assembly according to claim 1, characterized in that: The optical module receiver assembly also includes a substrate, and the capillary, silicon lens, diffraction grating and silicon array lens are fixed to the substrate.
8. The optical module receiver assembly according to claim 7, characterized in that: The prism is bonded to the silicon array lens, and the prism extends out of the substrate.
9. The optical module receiver assembly according to claim 7, characterized in that: The substrate is rectangular.
10. The optical module receiver assembly according to claim 9, characterized in that: The substrate is glass.