Optical assembly and electronic device
By using two one-dimensional lenses to converge light signals in the vertical direction, the problems of complex fabrication and high packaging difficulty of two-dimensional lenses are solved, realizing a low-cost optical coupling structure, simplifying the packaging process and improving reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-30
- Publication Date
- 2026-03-24
AI Technical Summary
In existing optical coupling structures, the fabrication process of two-dimensional lenses is complex, and alignment in two dimensions is required during packaging, resulting in high device and packaging costs, which cannot meet the requirements for low-cost use.
Two one-dimensional lenses are used as coupling structures to converge the light in two perpendicular directions, reducing the difficulty of fabrication and packaging. By integrating the one-dimensional lenses onto the optical chip or signal source, alignment steps are reduced.
It effectively reduces the fabrication and packaging costs of the coupling structure, simplifies the packaging process, meets the requirements for low-cost fabrication and use, and improves the reliability of the structure.
Smart Images
Figure CN121721774A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of optical communication, in particular to an optical assembly and an electronic device. BACKGROUND
[0002] Optical integrated chips (optical chips) can realize the functions of fast processing signal modulation and detection through the design of waveguides and devices, and are increasingly used in the fields of data communication, sensing and computing. Optical signals are coupled into optical chips through external optical fibers or light sources. The coupling structure between the optical chip and the optical fiber / light source is a very critical structure for optical signal transmission, and needs to have the characteristics of low loss, low coupling process complexity, high reliability and cost control.
[0003] In the existing coupling scheme, the optical signal in the light source or optical fiber usually uses a two-dimensional lens as a coupling structure to converge the optical signal in two dimensions into the waveguide of the optical chip. However, the preparation process of the two-dimensional lens is complex, and when the light source / optical fiber, two-dimensional lens and optical chip are packaged, alignment needs to be performed in two dimensions at the same time, and the packaging process is difficult and complex. Therefore, the current coupling structure device has high cost and packaging cost, which cannot meet the low-cost use demand. SUMMARY
[0004] Therefore, the purpose of the embodiments of the present application is to provide an optical assembly and an electronic device to improve the problem of high cost of coupling structure devices and packaging in the prior art.
[0005] In order to solve the above problems, in a first aspect, the embodiments of the present application provide an optical assembly, which comprises: a signal source, a coupling structure and an optical chip. The coupling structure is arranged between the signal source and the optical chip. The coupling structure comprises a first one-dimensional lens and a second one-dimensional lens. The signal source is configured to emit an optical signal. The first one-dimensional lens is configured to converge the optical signal in a first direction to obtain a first converged signal. The second one-dimensional lens is configured to converge the first converged signal in a second direction to obtain a target signal. The optical chip is configured to receive and process the target signal. The first direction and the second direction are perpendicular to each other.
[0006] In the implementation process, two one-dimensional lenses are used as the coupling structure and arranged between the signal source and the optical chip, so that the light signals emitted by the signal source are converged in two different and perpendicular dimensional directions by the two one-dimensional lenses in the first direction and the second direction respectively, the target signal after twice convergence is obtained, and transmitted to the optical chip for processing. By replacing the two-dimensional lens with two independent one-dimensional lenses, the preparation difficulty of the coupling structure is effectively reduced. When packaging, the two one-dimensional lenses can be aligned in two dimensional directions respectively, without the need for alignment in two dimensional directions at the same time, effectively reducing the difficulty and complexity of packaging, so as to reduce the cost of the coupling structure device and the packaging cost, and meet the low-cost preparation and use requirements.
[0007] Optionally, the second one-dimensional lens is integrated on the optical chip; and The first one-dimensional lens is integrated on the signal source, or the first one-dimensional lens is independently arranged between the signal source and the optical chip.
[0008] In the implementation process, the second one-dimensional lens can be integrated on the optical chip, and the first one-dimensional lens can be integrated on the signal source or independently arranged between the signal source and the optical chip. By integrating the one-dimensional lens, the second one-dimensional lens can be prepared at the same time as the optical chip. After preparation, the second one-dimensional lens is directly aligned with the optical chip, without the need for alignment during packaging, effectively reducing the preparation cost and packaging cost of the coupling structure.
[0009] Optionally, the optical chip is arranged on a support plane; The second direction is parallel to the support plane, and the first direction is perpendicular to the support plane.
[0010] In the implementation process, the optical chip is arranged on the support plane of the integrated optical platform of multiple types. Considering the integration difficulty of the second one-dimensional lens integrated on the optical chip, in the structure in which the second one-dimensional lens is integrated on the optical chip, the second direction in which the second one-dimensional lens converges the signal can be parallel to the support plane, and correspondingly, the first direction in which the first one-dimensional lens converges the signal can be perpendicular to the support plane. The second one-dimensional lens can be arranged in a structure that is easy to prepare on the optical chip, so that the light signal can be coupled into the optical chip for processing through the convergence in two directions.
[0011] Optionally, the first one-dimensional lens is configured as a convex lens with an arc in the plane of the second direction; The second one-dimensional lens is configured as a convex lens with an arc in the plane of the first direction.
[0012] In the implementation process described above, in the structure in which the second one-dimensional lens is integrated on the optical chip, the first one-dimensional lens is configured as a convex lens having a curvature in the plane of the second direction, so that the first one-dimensional lens can perform converging processing on the optical signal in the first direction, the second one-dimensional lens is configured as a convex lens having a curvature in the plane of the first direction, so that the second one-dimensional lens can perform converging processing on the optical signal in the second direction, and the curvature structure in the plane of the first direction can be realized by a simple preparation method during the integrated preparation of the optical chip, thereby reducing the preparation cost of the coupling structure.
[0013] Optionally, the second one-dimensional lens is prepared on the optical chip through an etching process of the optical chip.
[0014] In the implementation process described above, in the structure in which the second one-dimensional lens is integrated on the optical chip, the second one-dimensional lens can be etched on the optical chip together with other devices on the optical chip in the etching process of the optical chip, so that the second one-dimensional lens is prepared simultaneously in the preparation process of the optical chip, and the etched second one-dimensional lens is already aligned with other etched devices, thereby effectively reducing the preparation cost and packaging cost of the coupling structure.
[0015] Optionally, the first one-dimensional lens and the second one-dimensional lens are both integrated on the optical chip.
[0016] In the implementation process described above, the two one-dimensional lenses can be both integrated on the optical chip through etching or the like, so that the first one-dimensional lens and the second one-dimensional lens are prepared simultaneously in the preparation of the optical chip, and the first one-dimensional lens and the second one-dimensional lens are directly aligned after preparation, and the second one-dimensional lens is directly aligned with the optical chip, without the need for alignment processing in the packaging process, thereby effectively reducing the preparation cost and packaging cost of the coupling structure.
[0017] Optionally, the first one-dimensional lens and the second one-dimensional lens are both integrated on the signal source.
[0018] In the implementation process described above, the two one-dimensional lenses can be both integrated on the signal source, so that the first one-dimensional lens and the second one-dimensional lens are prepared simultaneously in the preparation of the signal source, and the first one-dimensional lens and the second one-dimensional lens are directly aligned after preparation, and the first one-dimensional lens is directly aligned with the signal source, without the need for alignment processing in the packaging process, thereby effectively reducing the preparation cost and packaging cost of the coupling structure.
[0019] Optionally, the optical assembly further includes an adjusting member. The adjusting member is arranged between the signal source and the coupling structure. The adjusting member is configured to adjust the optical signal.
[0020] In the implementation process, the optical assembly can further comprise an adjusting member, which is arranged between the signal source and the coupling structure, so as to collimate the optical signal emitted by the signal source through the adjusting member, thereby improving the quality of the optical signal entering the coupling structure.
[0021] Optionally, the optical chip is provided with an optical waveguide. The first transmission axis of the first one-dimensional lens and the second transmission axis of the second one-dimensional lens are aligned with the input port of the optical waveguide. The first distance between the signal source and the first one-dimensional lens, the second distance between the first one-dimensional lens and the second one-dimensional lens, and the third distance between the second one-dimensional lens and the input port are set based on the processing requirement of the optical chip.
[0022] In the implementation process, the optical chip is provided with an optical waveguide, in order to ensure the effectiveness of the optical signal transmission, the first transmission axis of the first one-dimensional lens and the second transmission axis of the second one-dimensional lens can be aligned with the input port of the optical waveguide, so as to reduce the loss in the process of optical signal transmission. Moreover, the distances between the multiple devices can be set based on the actual processing requirement of the optical chip, so as to process the optical signal with corresponding functions, thereby further improving the effectiveness of the target signal coupled into the optical waveguide.
[0023] In a second aspect, the embodiments of the present application provide an electronic device, which comprises the optical assembly of any one of the first aspect.
[0024] In summary, the embodiments of the present application provide an optical assembly and an electronic device, which uses two one-dimensional lenses as the coupling structure, effectively reduces the difficulty of preparing the coupling structure, and when packaging, the two one-dimensional lenses can be aligned in two dimensions respectively, without the need for alignment in two dimensions at the same time, thereby effectively reducing the difficulty and complexity of packaging, so as to reduce the cost of the coupling structure device and the packaging cost. BRIEF DESCRIPTION OF DRAWINGS
[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments of the present application. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.
[0026] Figure 1 A structural schematic diagram of an optical assembly provided by the embodiments of the present application; Figure 2 A top view structural schematic diagram of an optical assembly provided by an embodiment of the present application; Figure 3 A side view structural schematic diagram of an optical assembly provided by an embodiment of the present application; Figure 4 A top view structural schematic diagram of another optical assembly provided by an embodiment of the present application; Figure 5 A side view structural schematic diagram of another optical assembly provided by an embodiment of the present application.
[0027] Icon: 100 - signal source; 200 - coupling structure; 210 - first one-dimensional lens; 220 - second one-dimensional lens; 300 - optical chip; F1 - first direction; F2 - second direction; 400 - adjustment piece; 310 - optical waveguide. DETAILED DESCRIPTION
[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.
[0029] At present, a two-dimensional lens is usually used as a coupling structure for optical signals in a light source or an optical fiber to converge the optical signals in two dimensions into a waveguide of an optical chip. However, the preparation process of the two-dimensional lens is complex, and when the light source / optical fiber, the two-dimensional lens and the optical chip are packaged, alignment needs to be performed in two dimensions at the same time, and the difficulty and complexity of the packaging process are high. Therefore, the current coupling structure device cost and packaging cost are high, which cannot meet the low-cost use demand.
[0030] To solve the above problems, the embodiments of the present application provide an optical assembly and an electronic device, which use two one-dimensional lenses as a coupling structure, effectively reducing the preparation difficulty of the coupling structure, and when packaging, the two one-dimensional lenses can be aligned in two dimensions respectively, without the need for alignment in two dimensions at the same time, effectively reducing the difficulty and complexity of packaging, to reduce the coupling structure device cost and packaging cost.
[0031] Optionally, the optical assembly provided by the embodiments of the present application can be arranged in various types of electronic devices, which can be optical sensing and measuring devices, laser devices, optical communication and information processing devices, imaging and display devices and various types of devices.
[0032] Please refer to Figure 1 , Figure 1A structural schematic diagram of an optical assembly is provided for an embodiment of the present application, and the optical assembly comprises a signal source 100, a coupling structure 200 and an optical chip 300.
[0033] Optionally, the signal source 100 can be a device capable of outputting or transmitting optical signals, such as a laser, etc., for example, an optical source, an optical fiber, an optical fiber array assembly, etc.
[0034] Optionally, the optical chip 300 can be disposed on an integrated optical platform such as SOI, silicon nitride, silicon oxide, polymer, etc. In the optical port coupling design of the optical chip 300, the optical signal needs to be coupled into the optical waveguide 310 on the optical chip 300 from the signal source 100. The mode spot of the optical signal and the size of the mode spot of the optical waveguide 310 on the optical chip 300 do not completely match, and cannot be directly coupled. Therefore, the coupling structure 200 is needed to adjust the mode spot and then coupled into the optical chip 300 for processing.
[0035] The coupling structure 200 is disposed between the signal source 100 and the optical chip 300, and the coupling structure 200 comprises a first one-dimensional lens 210 and a second one-dimensional lens 220. The signal source 100 is configured to emit an optical signal. The first one-dimensional lens 210 is configured to converge the optical signal in a first direction to obtain a first converged signal. The second one-dimensional lens 220 is configured to converge the first converged signal in a second direction to obtain a target signal. The optical chip 300 is configured to receive and process the target signal. The optical signal emitted by the signal source 100 can be converged in two different one-dimensional directions, i.e., the first direction and the second direction, to obtain the target signal which is transmitted to the optical chip 300 for processing.
[0036] It should be noted that the first direction and the second direction are perpendicular to each other. With respect to a setting plane of the optical chip 300 on the integrated optical platform as a reference plane, the first direction can be parallel to the setting plane or perpendicular to the setting plane, and correspondingly, the second direction can be perpendicular to the setting plane or parallel to the setting plane.
[0037] For example, the first one-dimensional lens 210 and the second one-dimensional lens 220 can be an arc surface converging lens having curvature in only one direction, such as a part of a cylindrical surface, which converges light rays into an arc of a focal line, for example, a cylindrical lens, etc.
[0038] It should be noted that the first one-dimensional lens 210 and the second one-dimensional lens 220 provided by the embodiment of the present application are two one-dimensional lenses designed independently and different in structure, the two-dimensional lens is replaced by the two independent one-dimensional lenses, the preparation difficulty of the coupling structure 200 is effectively reduced, and when packaging, the two one-dimensional lenses can be aligned in two dimension directions respectively, without the need of alignment in two dimension directions at the same time, the difficulty and complexity of packaging are effectively reduced, the device cost and packaging cost of the coupling structure 200 are reduced, the overall structural reliability of the optical assembly is improved, and the preparation and use requirements of low cost are met.
[0039] Optionally, referring to Figures 2-3 , Figure 2 a top view structural schematic diagram of an optical assembly provided by the embodiment of the present application, Figure 3 a side view structural schematic diagram of an optical assembly provided by the embodiment of the present application.
[0040] The second one-dimensional lens 220 is integrated on the optical chip 300, and the first one-dimensional lens 210 is integrated on the signal source 100 or is independently arranged between the signal source 100 and the optical chip 300. Figure 2 Only one structure in which the first one-dimensional lens 210 is independently arranged between the signal source 100 and the optical chip 300 is shown, and the structure in which the first one-dimensional lens 210 is integrated on the signal source 100 will not be described in detail. The second one-dimensional lens 220 can be integrated on the optical chip 300, and the first one-dimensional lens 210 can be integrated on the signal source 100 or independently arranged between the signal source 100 and the optical chip 300. By integrating the one-dimensional lens, the second one-dimensional lens 220 can be prepared at the same time as the optical chip 300, and after preparation, the second one-dimensional lens 220 is directly aligned with the optical chip 300, without the need of alignment in the packaging process, thereby effectively reducing the preparation cost and packaging cost of the coupling structure 200.
[0041] Optionally, the first one-dimensional lens 210 can be fixed and integrated on the signal source 100 by various connecting members such as screws, nuts, buckles, glue, etc., and a corresponding step can also be added in the preparation process of the signal source 100, for example, in the preparation process of the signal source 100, a curved surface with a lens function is designed and integrated on the chip of the signal source 100 by etching, so as to obtain the first one-dimensional lens 210 integrated with the signal source 100.
[0042] It should be noted that considering the integration difficulty of the second one-dimensional lens 220 integrated on the optical chip 300, Figure 2The second one-dimensional lens 220 is shown to be integrated in a structure on the optical chip 300, the optical chip 300 is arranged on a support plane, the second direction F2 is parallel to the support plane, and the first direction F1 is perpendicular to the support plane. That is, the second direction F2 in which the second one-dimensional lens 220 converges the signal can be parallel to the support plane, and correspondingly, the first direction F1 in which the first one-dimensional lens 210 converges the signal can be perpendicular to the support plane, so that the second one-dimensional lens 220 can be arranged in a structure that is convenient to manufacture on the optical chip 300, so that the optical signal can be coupled into the optical chip 300 for processing through the convergence processing in two directions.
[0043] Optionally, please continue to refer to Figures 2-3 , the first one-dimensional lens 210 is configured as a convex lens with a curvature in the plane of the second direction F2, so that the first one-dimensional lens 210 can converge the optical signal in the first direction F1, the second one-dimensional lens 220 is configured as a convex lens with a curvature in the plane of the first direction F1, so that the second one-dimensional lens 220 can converge the optical signal in the second direction F2, and the optical chip 300 can be manufactured by a simple manufacturing method to realize the curvature structure in the plane of the first direction F1, thereby reducing the manufacturing cost of the coupling structure 200.
[0044] For example, the first one-dimensional lens 210 can be configured as a columnar lens arranged in parallel along the second direction F2, and the second one-dimensional lens 220 can be a columnar lens arranged in parallel along the first direction F1.
[0045] For example, the first one-dimensional lens 210 and the second one-dimensional lens 220 can be configured as a plano-convex lens or a double-convex lens.
[0046] It should be noted that in Figures 2-3 The second one-dimensional lens 220 is shown to be integrated in a structure on the optical chip 300, the second one-dimensional lens 220 is prepared on the optical chip 300 through the etching process of the optical chip 300. In the etching process of the optical chip 300, the second one-dimensional lens 220 can be etched on the optical chip 300 together with other devices on the optical chip 300, so that the second one-dimensional lens 220 can be etched and prepared simultaneously in the preparation process of the optical chip 300, and the etched second one-dimensional lens 220 and other etched devices are already aligned, effectively reducing the manufacturing cost and packaging cost of the coupling structure 200.
[0047] Optionally, the overall fabrication process of the optical chip 300 may include: first determining the etching parameters of other devices on the optical chip 300, etching out the corresponding area in the entrance region of the optical signal, depositing a lens material such as silicon dioxide of a corresponding thickness in the area, and then etching the deposited lens material according to the designed lens structure to obtain the corresponding second one-dimensional lens 220.
[0048] Optionally, during the layout design of the optical chip 300, the pattern corresponding to the second one-dimensional lens 220 can be added to the layout. During fabrication, the required lens shape can be etched onto the optical chip 300 through steps such as waveguide etching and end-face etching. The solution of integrating the second one-dimensional lens 220 into the optical chip 300 has the advantages of high precision in performance. In terms of technical feasibility, it eliminates the step of lens coupling to the optical waveguide in the traditional solution, and does not impose additional higher requirements on the steepness, roughness, and other indicators of the etching process, making it highly feasible.
[0049] It should be noted that when etching to fabricate the second one-dimensional lens 220, since the second one-dimensional lens 220 has an arc on the plane of the first direction F1, it is convenient to perform etching from top to bottom, which further reduces the fabrication difficulty of the second one-dimensional lens 220.
[0050] For example, in Figures 2-3 In the structure shown, the optical signal is emitted from the signal source 100, passes through the first one-dimensional lens 210 and the second one-dimensional lens 220, and converges and couples into the optical waveguide 310 on the optical chip 300. Figure 2 We can see the change of the light signal in the second direction F2. After passing through the first one-dimensional lens 210, the divergence angle of the light signal does not change (i.e., the convergence angle in the second direction F2 remains unchanged). When passing through the second one-dimensional lens 220, the light signal is converged (i.e., convergence in the second direction F2). Figure 3 The changes of the light signal in the first direction F1 can be seen. After the light signal passes through the first one-dimensional lens 210, the light signal is converged (i.e., converged in the first direction F1). When it passes through the second one-dimensional lens 220, the divergence angle does not change (i.e., the convergence in the first direction F1 remains unchanged).
[0051] Alternatively, the first one-dimensional lens 210 can be integrated onto the optical chip 300, and the second one-dimensional lens 220 can be integrated onto the signal source 100, or the second one-dimensional lens 220 can be set independently.
[0052] Optionally, the first one-dimensional lens 210 and the second one-dimensional lens 220 can also be integrated on the optical chip 300. The two one-dimensional lenses can be integrated on the optical chip 300 by etching or the like. The two one-dimensional lenses can be prepared at the same time as the optical chip 300, and the first one-dimensional lens 210 and the second one-dimensional lens 220 are directly aligned after preparation. The second one-dimensional lens 220 is directly aligned with the optical chip 300, and no alignment process is required in the packaging process, effectively reducing the preparation cost and packaging cost of the coupling structure 200.
[0053] Optionally, on the basis of the second one-dimensional lens 220 integrated on the optical chip 300, the first one-dimensional lens 210 can be integrated on the optical chip 300 by an etching process with gradually changing etching depth. The etching process with gradually changing etching depth requires additional gray-scale design of the layout and higher accuracy of depth control.
[0054] It should be noted that when the first one-dimensional lens 210 and the second one-dimensional lens 220 are integrated on the optical chip 300, the first direction and the second direction can be exchanged, that is, the first one-dimensional lens 210 can converge light in the direction parallel to the support plane, and the second one-dimensional lens 220 can converge light in the direction perpendicular to the support plane. The first one-dimensional lens 210 can also converge light in the direction perpendicular to the support plane, and the second one-dimensional lens 220 can converge light in the direction parallel to the support plane.
[0055] Optionally, the first one-dimensional lens 210 and the second one-dimensional lens 220 can also be integrated on the signal source 100. The two one-dimensional lenses can be integrated on the signal source 100, and the first one-dimensional lens 210 and the second one-dimensional lens 220 can be prepared at the same time as the signal source 100. The first one-dimensional lens 210 and the second one-dimensional lens 220 are directly aligned after preparation. The first one-dimensional lens 210 is directly aligned with the signal source 100, and no alignment process is required in the packaging process, effectively reducing the preparation cost and packaging cost of the coupling structure 200.
[0056] Optionally, the first one-dimensional lens 210 and the second one-dimensional lens 220 can be fixed and integrated on the signal source 100 by various connecting members such as screws, nuts, buckles, and glue. The corresponding steps can also be added in the preparation process of the signal source 100. For example, in the preparation process of the signal source 100, a curved surface with lens function is designed and integrated into the chip of the signal source 100 by etching, to prepare the first one-dimensional lens 210 and the second one-dimensional lens 220 integrated with the signal source 100.
[0057] It should be noted that when the first one-dimensional lens 210 and the second one-dimensional lens 220 are both integrated on the signal source 100, the first direction and the second direction can be exchanged, that is, the first one-dimensional lens 210 can converge light in the direction parallel to the support plane, and the second one-dimensional lens 220 can converge light in the direction perpendicular to the support plane, or the first one-dimensional lens 210 can converge light in the direction perpendicular to the support plane, and the second one-dimensional lens 220 can converge light in the direction parallel to the support plane.
[0058] Optionally, the first one-dimensional lens 210 and the second one-dimensional lens 220 can also be deposited with corresponding anti-reflection films. The anti-reflection film can include titanium dioxide, zirconium oxide and other materials, and the anti-reflection film can be a single-layer film or a multi-layer film, which can be set based on actual conditions to further optimize the effect of converging the optical signal. When the first one-dimensional lens 210 and / or the second one-dimensional lens 220 are integrated on the optical chip 300, the corresponding anti-reflection film material can be deposited on the one-dimensional lens during the material deposition process of the optical chip 300.
[0059] Optionally, the first one-dimensional lens 210 and the second one-dimensional lens 220 can also be independently arranged between the signal source 100 and the optical chip 300 and independently fixed by corresponding fixing members to realize various converging functions.
[0060] Please refer to Figures 4-5 , Figure 4 Another top view structural schematic diagram of an optical assembly provided by an embodiment of the present application is shown in FIG. 4. Figure 5 Another side view structural schematic diagram of an optical assembly provided by an embodiment of the present application is shown in FIG. 5. The optical assembly can further include an adjusting member 400. The adjusting member 400 is arranged between the signal source 100 and the coupling structure 200, and is used for adjusting the optical signal. The adjusting member 400 is arranged between the signal source 100 and the coupling structure 200 to collimate and adjust the optical signal emitted by the signal source 100 through the adjusting member 400, so as to improve the quality of the optical signal entering the coupling structure 200.
[0061] Optionally, the adjusting member 400 can include a collimating lens, a diffractive optical element, a polarization device, an optical modulator, an isolator and other types of devices. Taking the collimating lens as an example, the collimating lens can collimate the optical signal emitted by the signal source 100 to improve the collimation characteristics of the optical signal entering the coupling structure 200.
[0062] For example, in Figures 4-5In the shown structure, taking the adjusting member 400 as an example of the collimating lens, the optical signal is emitted from the signal source 100, and first passes through the collimating lens, at which time the optical signal becomes similar to collimated light. The similar collimated light passes through the first one-dimensional lens 210 and the second one-dimensional lens 220, and is coupled into the optical waveguide 310 on the optical chip 300. In Figure 4 The change of the optical signal in the second direction F2 can be seen in the shown structure. After the optical signal passes through the first one-dimensional lens 210, the divergence angle does not change (i.e., the second direction F2 convergence is unchanged), and when the optical signal passes through the second one-dimensional lens 220, the optical signal is converged (i.e., the second direction F2 convergence). Figure 5 The change of the optical signal in the first direction F1 can be seen in the shown structure. After the optical signal passes through the first one-dimensional lens 210, the optical signal is converged (i.e., the first direction F1 convergence), and when the optical signal passes through the second one-dimensional lens 220, the divergence angle does not change (i.e., the first direction F1 convergence is unchanged).
[0063] Please continue to refer to Figures 2-5 The optical chip 300 can also be provided with the optical waveguide 310. In order to ensure the effectiveness of the optical signal transmission, the first transmission axis of the first one-dimensional lens 210 and the second transmission axis of the second one-dimensional lens 220 are aligned with the input port of the optical waveguide 310, so as to reduce the loss of the optical signal in the transmission process.
[0064] For example, the input port of the optical waveguide 310 can be a corresponding light inlet.
[0065] Optionally, it can be determined by simulation or other test methods whether the first transmission axis and the second transmission axis are aligned with the signal output port of the signal source 100, whether the first transmission axis and the second transmission axis are aligned, and whether the first transmission axis and the second transmission axis are aligned with the input port of the optical waveguide 310, so as to ensure the consistency of the optical path and reduce the loss of the optical signal caused by the deviation of the physical position.
[0066] For example, the optical waveguide 310 can be a silicon waveguide, a silicon nitride waveguide, or other waveguides capable of processing optical signals.
[0067] It should be noted that in the direction parallel to the support plane, the first distance between the signal source 100 and the first one-dimensional lens 210, the second distance between the first one-dimensional lens 210 and the second one-dimensional lens 220, and the third distance between the second one-dimensional lens 220 and the input port can be set based on the actual processing requirements of the optical chip 300.
[0068] For example, the processing requirements of the optical chip 300 can include the size of the target signal spot to be accepted, and therefore, based on the processing requirements and in combination with the working parameters of the signal source 100, the specific structure of the two one-dimensional lenses can be designed to determine the focal length of each dimension direction of the two one-dimensional lenses, thereby determining the corresponding first distance, second distance and third distance.
[0069] Optionally, when the first one-dimensional lens 210 and / or the second one-dimensional lens 220 are integrated on the optical chip 300 or the signal source 100, the first distance, the second distance and the third distance are set according to the processing requirements at the device integration stage.
[0070] It should be noted that, in the above description, Figures 3-5 In the above description, the green part is the light path range of the optical signal.
[0071] In addition, each part in each embodiment of the present application can be integrated together to form an independent part, or each part can exist independently, or two or more parts can be integrated to form an independent part.
[0072] The above only describes the embodiments of the present application and is not used to limit the protection scope of the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0073] The above only describes the embodiments of the present application and is not used to limit the protection scope of the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0074] It should be noted that, in this document, relational terms such as first and second, and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, article, or apparatus. Without limitation, an element preceded by "comprises... a" does not, without more constraints, foreclose the existence of additional identical elements in the process, article, or apparatus that comprises the element.
Claims
1. An optical component, characterized in that, The optical components include: a signal source, a coupling structure, and an optical chip; The coupling structure is disposed between the signal source and the optical chip; The coupling structure includes: a first one-dimensional lens and a second one-dimensional lens; The signal source is used to emit optical signals; The first one-dimensional lens is used to converge the optical signal in a first direction to obtain a first converged signal; The second one-dimensional lens is used to converge the first converging signal in the second direction to obtain the target signal; The optical chip is used to receive and process the target signal; Wherein, the first direction and the second direction are perpendicular to each other.
2. The optical component according to claim 1, characterized in that, in, The second one-dimensional lens is integrated onto the optical chip; and The first one-dimensional lens is integrated on the signal source, or the first one-dimensional lens is independently disposed between the signal source and the optical chip.
3. The optical component according to claim 2, characterized in that, The optical chip is disposed on the support plane; Wherein, the second direction is a direction parallel to the supporting plane, and the first direction is a direction perpendicular to the supporting plane.
4. The optical component according to claim 3, characterized in that, in, The first one-dimensional lens is configured as a convex lens with curvature on the plane in the second direction; The second one-dimensional lens is configured as a convex lens with curvature on the plane in the first direction.
5. The optical component according to claim 2, characterized in that, in, The second one-dimensional lens is fabricated on the optical chip through an etching process.
6. The optical component according to claim 1, characterized in that, in, Both the first one-dimensional lens and the second one-dimensional lens are integrated onto the optical chip.
7. The optical component according to claim 1, characterized in that, in, Both the first one-dimensional lens and the second one-dimensional lens are integrated on the signal source.
8. The optical component according to any one of claims 1-7, characterized in that, The optical components also include: adjustment components; The adjustment component is disposed between the signal source and the coupling structure; The adjustment component is used to adjust the optical signal.
9. The optical component according to any one of claims 1-7, characterized in that, The optical chip is provided with an optical waveguide; The first transmission axis of the first one-dimensional lens and the second transmission axis of the second one-dimensional lens are aligned with the input port of the optical waveguide; The first distance between the signal source and the first one-dimensional lens, the second distance between the first one-dimensional lens and the second one-dimensional lens, and the third distance between the second one-dimensional lens and the input port are set based on the processing requirements of the optical chip.
10. An electronic device, characterized in that, The electronic device includes the optical component according to any one of claims 1-9.