Manufacturing method of optical device and optical device

Abstract

The invention belongs to the field of optical devices, and provides a manufacturing method of an optical device and the optical device. The manufacturing method of the optical device comprises the following steps: determining an internal optical structure of the optical device according to a simulation optical path and a packaging specification; designing a component seat structure of the optical device according to a coupling assembly process of an internal optical structure of the optical device; a component seat structure of an optical device is split into component seat sub-structures, so that each component seat sub-structure is correspondingly maximized and can be machined and manufactured; each assembly base structure is manufactured in a machining mode so as to be used for assembling each assembly base structure and fixing the corresponding optical structure. Machining is facilitated, and the requirements for low cost, process simplification and high reliability are met at the same time.

Description

Technical Field

[0001] The present invention belongs to the field of optical devices, and in particular relates to a method for manufacturing an optical device and the optical device. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] With the popularization of the Internet and the continuous increase in demand, the corresponding access network needs to be upgraded to meet the high requirements of network access speed. In the process of access network upgrade, optical devices (OSA, Optical Subassemblies) will consider factors such as TO packaging specifications corresponding to lasers and photodetectors, optical coupling structures, and process differences and costs of OSA device coupling.

[0004] At present, the main structure of optical devices is mass-produced by powder metallurgy, which has the following disadvantages: once the design is finalized and the mold is opened, it is difficult to change, costly and time-consuming, so batch powder metallurgy depends on sufficient early structural design verification. Early design verification is in the form of machining. Since the internal structure of OSA devices is complex and compact, and the processing technology and precision requirements are high, the traditional machining method can only achieve the design of some simple structures, or the design that does not affect the overall precision of the OSA device and the simplicity of the assembly process after disassembly. Summary of the invention

[0005] In order to solve the technical problems existing in the above-mentioned background technology, the present invention provides a method for manufacturing an optical device and an optical device, which are easy to realize machining and meet the requirements of low cost, simplified process and high reliability.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A first aspect of the present invention provides a method for manufacturing an optical device.

[0008] A method for manufacturing an optical device, comprising:

[0009] Determine the internal optical structure of the optical device based on the simulated optical path and packaging specifications;

[0010] Design the component seat structure of the optical device according to the coupling assembly process of the internal optical structure of the optical device;

[0011] Splitting the component seat structure of the optical device into individual component seat sub-structures, so that each component seat sub-structure is a corresponding maximized machinable structure;

[0012] Each component seat structure is manufactured by machining to assemble each component seat structure and fix the corresponding optical structure.

[0013] As an implementation mode, the structural strength of each component seat structure after assembly meets the preset requirements for the overall strength of the component seat structure of the optical device.

[0014] As an implementation method, each component seat structure meets the fool-proof design principle.

[0015] As an implementation method, a step-by-step splitting and judgment method is used to achieve the splitting of the component seat structure of the optical device.

[0016] As an implementation method, during each disassembly process of the component seat structure of the optical device, it is determined whether each substructure obtained in the current disassembly step is a machineable structure. If so, the disassembly of the corresponding substructure is stopped; otherwise, the disassembly continues.

[0017] As an implementation mode, in each disassembly process of the component seat structure of the optical device, if any substructure obtained in the current disassembly step is a non-machinable structure, it is further determined whether the non-machinable structure is caused by itself.

[0018] As an implementation mode, if the non-machinable structure is caused by itself, the non-machinable structure itself is split; otherwise, the structure interfering with the non-machinable structure is split.

[0019] A second aspect of the present invention provides an optical device.

[0020] An optical device is manufactured by adopting the steps in the method for manufacturing an optical device as described above.

[0021] As an implementation manner, the optical device includes a component seat and a corresponding optical structure fixed thereon; the component seat is assembled by machining various component seat substructures.

[0022] As an implementation manner, the component seat is a metal structure.

[0023] The beneficial effects of the present invention are:

[0024] The present invention splits the component seat structure of the optical device into individual component seat sub-structures, and makes each component seat sub-structure a corresponding maximized machinable structure, which is suitable for optical devices of different structures, and achieves predetermined design requirements by simple machining methods, meets the requirements of simplifying subsequent assembly processes and ensuring accuracy, and quickly realizes the design verification of new structure optical devices.

[0025] Advantages of additional aspects of the present invention will be given in part in the following description, and in part will become obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0027] Figure 1 is a flow chart of a method for manufacturing an optical device according to an embodiment of the present invention;

[0028] Figure 2 is a three-dimensional diagram of the component seat structure of the optical device according to an embodiment of the present invention;

[0029] Figure 3 is a cross-sectional view of a component seat structure of an optical device according to an embodiment of the present invention;

[0030] Figure 4 It is a cross-sectional view of the component seat structure of the optical device according to an embodiment of the present invention taken along the AA plane. DETAILED DESCRIPTION

[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0032] It should be noted that the following detailed descriptions are all illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0033] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0034] Figure 1 A flow chart of a method for manufacturing an optical device according to an embodiment of the present invention is provided. Figure 1 , a method for manufacturing an optical device of this embodiment includes:

[0035] S100: determining the internal optical structure of the optical device according to the simulated optical path and packaging specifications;

[0036] S200: designing a component seat structure of the optical device according to a coupling assembly process of an internal optical structure of the optical device;

[0037] S300: splitting the component seat structure of the optical device into individual component seat sub-structures, so that each component seat sub-structure is a corresponding maximized machinable structure;

[0038] S400: using a machining method to manufacture each component seat structure, so as to assemble each component seat structure and fix the corresponding optical structure.

[0039] This embodiment splits the component seat structure of the optical device into individual component seat sub-structures, and makes each component seat sub-structure a corresponding maximized machinable structure, which is suitable for optical devices of different structures, and achieves the predetermined design requirements by simple machining methods, meets the requirements of simplifying the subsequent assembly process and ensuring accuracy, and quickly realizes the design verification of new structure optical devices.

[0040] In step S100, the simulated optical path and packaging specifications are all pre-designed requirements; and the process of determining the internal optical structure of the light-emitting device is a prior art and will not be described in detail herein.

[0041] In step S200, in the process of designing the component seat structure of the optical device, in addition to considering the coupling assembly process, the environmental factors of manufacturing the optical device are also considered to ensure the accuracy of the optical device.

[0042] In step S300, the structural strength of each component seat structure after assembly meets the preset requirement of the overall strength of the component seat structure of the optical device, and each component seat structure meets the foolproof design principle.

[0043] In the specific implementation process, a step-by-step splitting and judgment method is adopted to realize the splitting of the component seat structure of the optical device.

[0044] The process of the step-by-step splitting and judgment method is as follows:

[0045] In each step of the splitting process of the optical device component seat structure, it is determined whether each substructure obtained in the current splitting step is a machineable structure. If so, the corresponding substructure stops splitting; otherwise, it continues splitting. In this way, the maximum number of machinable structures can be accurately determined, meeting the requirements of simplifying the subsequent assembly process and ensuring accuracy, and quickly realizing the design verification of new structure optical devices.

[0046] In each disassembly process of the component seat structure of the optical device, if any substructure obtained in the current disassembly step is a non-machinable structure, it is further determined whether the non-machinable structure is caused by itself.

[0047] If the non-machinable structure is due to its own reasons, the non-machinable structure itself is split; otherwise, the structure that interferes with the non-machinable structure is split. In this way, by analyzing the reasons for the non-machinable structure, the way of structural splitting is simplified as much as possible, and the design and verification of complex structures are realized.

[0048] In one or more embodiments, an optical device is provided. Figure 1 It is manufactured according to the steps in the manufacturing method of the optical device shown.

[0049] The optical device of this embodiment includes a component seat and a corresponding optical structure fixed thereon; the component seat is assembled by machining various component seat sub-structures.

[0050] In this embodiment, the component seat is a metal structure, and the structure of the component seat of the optical device is as follows: Figure 2-Figure 4 As shown, the small block on the left side of the component seat structure of the optical device is a portion taken out from the inside of the component seat structure of the optical device. This embodiment uses a method of simplifying the structure splitting as much as possible to achieve the design and verification of complex structures.

[0051] For example, in optical devices, the 0-degree filter sink adopts a circular outline. In optical devices, due to the requirements of the bevel angle and surface accuracy of the 45-degree filter, the 45-degree filter base needs to be split out for processing; the outer contour of the 45-degree filter base is a rectangular parallelepiped, which can ensure assembly positioning and facilitate processing.

[0052] Among them, the rectangular cross-section adopts a fool-proof design with different width and height dimensions, and the four side edges can adopt an inner groove R0.55mm and an outer angle R0.70mm radius (the parameters can also be adjusted according to actual needs). This can avoid the inability to ensure the tool head clear angle when machining the inner 90-degree right-angle surface, and facilitate subsequent assembly and precision.

[0053] In the specific machining process, the right-angled sides of the 45-degree filter base are made of circular grooves as much as possible, which is also convenient for one-cut forming during machining. Since there is an anti-reflection groove at the bottom of the 45-degree filter base, machining must penetrate through the end faces on both sides for machining. Therefore, the tolerance and the size of the thinnest point need to be considered to achieve machining.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for manufacturing an optical device, characterized in that: include: Determine the internal optical structure of the optical device based on the simulated optical path and packaging specifications; Design the component seat structure of the optical device according to the coupling assembly process of the internal optical structure of the optical device; Splitting the component seat structure of the optical device into individual component seat sub-structures, so that each component seat sub-structure is a corresponding maximized machinable structure; Each component seat structure is manufactured by machining to assemble each component seat structure and fix the corresponding optical structure.

2. The method for manufacturing an optical device according to claim 1, wherein: The structural strength of each component seat structure after assembly meets the preset requirements for the overall strength of the component seat structure of the optical device.

3. The method for manufacturing an optical device according to claim 1, wherein: The seat structure of each component meets the principle of fool-proof design.

4. The method for manufacturing an optical device according to claim 1, wherein: The method of step-by-step disassembly and judgment is adopted to realize the disassembly of the component seat structure of the optical device.

5. The method for manufacturing an optical device according to claim 4, characterized in that: In each step of the splitting process of the component seat structure of the optical device, it is determined whether each substructure obtained in the current splitting step is a structure that can be machined. If so, the splitting of the corresponding substructure is stopped; otherwise, the splitting continues.

6. The method for manufacturing an optical device according to claim 4, characterized in that: In each step of the disassembly process of the component seat structure of the optical device, if any substructure obtained in the current disassembly step is a non-machinable structure, it is further determined whether the non-machinable structure is caused by itself.

7. The method for manufacturing an optical device according to claim 6, wherein: If the unmachinable structure is caused by itself, the unmachinable structure itself is split; otherwise, the structure interfering with the unmachinable structure is split.

8. An optical device manufactured by using the steps in the method for manufacturing an optical device according to any one of claims 1 to 7.

9. The optical device according to claim 8, characterized in that: The optical device comprises a component seat and a corresponding optical structure fixed thereon; the component seat is assembled by manufacturing various component seat substructures by machining.

10. The optical device according to claim 9, characterized in that: The component seat is a metal structure.

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