Optical device, optical module, board, and communication apparatus

Abstract

The application relates to an optical device belonging to the technical field of optical communication. The optical device comprises a collimating lens, a filtering structure and a reflecting structure; the collimating lens receives a first light beam from a target first port and a second light beam from a third port, and transmits the first light beam and the second light beam to the filtering structure; the filtering structure reflects the first light beam and transmits the second light beam; the collimating lens transmits the first light beam to a target second port; the reflecting structure is used for reflecting the second light beam to the filtering structure, so that the transmission direction of the second light beam and the first light beam from the filtering structure to the collimating lens is the same; and the collimating lens transmits the second light beam to the target second port. The application can solve the problem that the structure of connecting multiple WDM devices by an optical switch is relatively complex, and the application is used for combining the second light beam and the first light beam.

Description

Technical Field

[0001] This application relates to the field of optical communication technology, and in particular to an optical device, optical module, board, and communication equipment. Background Technology

[0002] In the field of optical communication technology, it is usually necessary to combine one detection beam with one of the multiple service beams to detect the transmission quality of the service beam or to detect the transmission path of the service beam.

[0003] In related technologies, optical switches and multiple wavelength division multiplexing (WDM) devices are typically used to combine a detection beam with one of multiple service beams. For example, each WDM device corresponds to one of the service beams, and each WDM device receives its corresponding service beam. An optical switch connects these WDM devices, receiving the detection beam and transmitting it to any one of the WDM devices. This specific WDM device then combines the received detection beam with the received service beam and outputs the result. This achieves the combination of the detection beam and the corresponding service beam.

[0004] However, the overall structure of the optical switch and its connected multiple WDM devices is quite complex. Furthermore, when connecting the optical switch and each WDM device, fiber optic adapters or fiber optic fusion splices need to be set at the connection points. Therefore, the deployment of the optical switch and its connected multiple WDM devices is quite difficult. Summary of the Invention

[0005] This application provides an optical device, optical module, board, and communication equipment, which can solve the problem of the complex overall structure of an optical switch and its connected multiple WDM devices. The solution provided by this application is as follows.

[0006] In a first aspect, this application provides an optical device comprising: a collimating lens, a filtering structure, and a reflecting structure; wherein the collimating lens is used to receive a first light beam from a target first port among a plurality of first ports, to receive a second light beam from a third port, and to transmit both the first light beam and the second light beam to the filtering structure; the target first port is any one of the plurality of first ports; the plurality of first ports and the plurality of second ports correspond one-to-one, and each first port and its corresponding second port are symmetrically distributed about the optical axis of the collimating lens; the filtering structure is used to reflect the first light beam and transmit the second light beam; the wavelength of the second light beam is different from the wavelength of the first light beam, therefore, the filtering structure can reflect the first light beam to the collimating lens and transmit the second light beam to the reflecting structure according to the difference in wavelength.

[0007] Next, the collimating lens is used to transmit the first beam, which passes through the collimating lens and the filtering structure in sequence, to the second target port corresponding to the first target port; the reflecting structure is used to reflect the second beam, which passes through the collimating lens and the filtering structure in sequence, to the filtering structure so that the second beam and the first beam are transmitted in the same direction from the filtering structure to the collimating lens; the collimating lens is also used to transmit the second beam, which passes through the collimating lens, the filtering structure, the reflecting structure and the filtering structure in sequence, to the second target port.

[0008] In the optical device provided in this application embodiment, the first beam at the target first port is transmitted to the collimating lens after passing through a collimating lens and a filtering structure in sequence. The collimating lens can transmit the first beam to the target second port corresponding to the target first port. The second beam at the third port is transmitted to the collimating lens after passing through a collimating lens, a filtering structure, a reflection structure, and another filtering structure in sequence. Furthermore, the second beam is reflected by the reflection structure, so that the second beam and the first beam have the same transmission direction from the filtering structure to the collimating lens. In this way, the collimating lens can transmit the second beam to the target second port, realizing the combination of the second beam and the first beam. Moreover, compared to an optical switch connecting multiple WDM devices, the optical device provided in this application embodiment does not require the connection of multiple devices, and the complexity and deployment difficulty of this optical device are both lower.

[0009] The first beam can be a service beam, such as a service beam in an access network (e.g., a passive optical network, PON), a data center, or a transport optical network. The second beam can be a detection beam, such as a detection beam from an optical artificial intelligence board (OAI) or an optical time domain reflectometer (OTDR).

[0010] The aforementioned reflection structure can also be used to switch the target first port between multiple first ports. At this time, the target second port is also switched between multiple second ports. It can be seen that the reflection structure can set the reflection angle of the second beam on the reflection structure as needed, so that the second beam can be transmitted to the second port corresponding to any of the multiple first ports, thereby combining the second beam with the first beam of any of the first ports.

[0011] Reflective structures can include microelectromechanical systems (MEMS) mirrors or liquid crystal on silicon (LCOS) structures that can change the reflection angle of a light beam.

[0012] Collimating lenses can be achieved using gradient-index lenses (GRIN-lens or G-lens), cylindrical lenses (C-lens), spherical lenses, or aspherical lenses.

[0013] The above-described filtering structure can be implemented in various ways. For example, in one optional implementation, the filtering structure may include a thin film filter (TFF) located on the surface of the collimating lens 04, the TFF comprising the aforementioned multiple filter layers, and the TFF being formed on the surface of the collimating lens using a film-forming process. In another optional implementation, the filtering structure includes a filter and an adhesive layer, the filter comprising the aforementioned multiple filter layers. The filter can be fixed to the surface of the collimating lens via the adhesive layer.

[0014] Optionally, all of the aforementioned ports (including multiple first ports, multiple second ports, and a third port) can be fiber optic ports. In this case, the optical device can include multiple optical fibers; each of the multiple optical fibers corresponds one-to-one with a port, and each of the multiple ports is a port of the corresponding optical fiber. The multiple optical fibers can be arranged in an array to form a fiber array (FA).

[0015] Furthermore, the optical device may also include a relay structure located in the optical path between multiple ports and a collimating lens. The multiple ports include multiple first ports, multiple second ports, and a third port. The transmission direction of any beam passing through the relay structure remains unchanged. For any two ports, the distance between the corresponding positions of these two ports on the collimating lens is less than the distance between the two ports. The beam from each port can be transmitted to the corresponding position of the port on the collimating lens through the relay structure.

[0016] When the distance between any two ports on the collimating lens is less than the distance between the two ports themselves, the incident angle of the light beam from each port on the filtering structure decreases after passing through the collimating lens, compared to not having a relay structure. This decrease in incident angle reduces the wavelength shift of the filtering structure, allowing it to more accurately reflect the first light beam and transmit the second light beam.

[0017] Secondly, this application provides an optical module or board, both of which include: a controller and an optical device as described in any of the designs in the first aspect, wherein the controller is connected to the optical device and is used to control the reflective structure to switch the target first port between multiple first ports.

[0018] Thirdly, this application provides a communication device, comprising: a plurality of first components and second components, and an optical device as described in any of the designs in the first aspect; the plurality of first components are connected one-to-one with the plurality of first ports, and the first component corresponding to the target first port is used to provide a first light beam to the target first port; the second component is connected to the third port, and the second component is used to provide a second light beam to the third port.

[0019] Optionally, the second beam can be a detection beam. In this case, the second component is further configured to receive the reflected second beam from the third port and detect the transmission quality or transmission path of the first beam based on the reflected second beam. For example, the second component may include an OAI or an OTDR. Attached Figure Description

[0020] Figure 1 A schematic diagram illustrating a 1×N optical switch connecting N WDM devices, provided as an embodiment of this application;

[0021] Figure 2 A schematic diagram of an optical device provided in an embodiment of this application;

[0022] Figure 3 for Figure 2 Left view of the fiber optic array;

[0023] Figure 4 A schematic diagram illustrating the arrangement of multiple ports as provided in an embodiment of this application;

[0024] Figure 5 This is a schematic diagram illustrating another arrangement of multiple ports provided in an embodiment of this application;

[0025] Figure 6 This is a schematic diagram illustrating another arrangement of multiple ports provided in an embodiment of this application;

[0026] Figure 7 This is a schematic diagram illustrating another arrangement of multiple ports provided in an embodiment of this application;

[0027] Figure 8 This is a schematic diagram illustrating another arrangement of multiple ports provided in an embodiment of this application;

[0028] Figure 9 This application provides a schematic diagram of the optical path of a first beam according to an embodiment of the present application.

[0029] Figure 10 A simulation diagram of a first beam propagating in a collimating lens, provided for an embodiment of this application;

[0030] Figure 11This application provides a schematic diagram of the optical path of a second beam according to an embodiment of the present application.

[0031] Figure 12 An optical path simulation diagram of a second beam provided for an embodiment of this application;

[0032] Figure 13 An optical path simulation diagram of another second beam provided in the embodiments of this application;

[0033] Figure 14 A schematic diagram of another optical device provided in an embodiment of this application;

[0034] Figure 15 A schematic diagram of an optical channel in a relay structure provided in an embodiment of this application;

[0035] Figure 16 This is a schematic diagram of an optical module provided in an embodiment of this application. Detailed Implementation

[0036] This application provides an optical device that can combine a second light beam with a first light beam.

[0037] The first beam can be a service beam, such as a service beam in an access network (e.g., PON), a data center, or a transmission optical network.

[0038] The second beam can be a detection beam, such as an OAI detection beam or an OTDR detection beam. The OAI detection beam is used for monitoring the optical signal status of the first beam, diagnosing anomalies, or optimizing performance. The OTDR detection beam is used for fault location, loss measurement, or fiber breakage detection along the transmission path of the first beam. Alternatively, the second beam can be any beam other than the detection beam, such as a pump beam, which amplifies the first beam.

[0039] In related technologies, a 1×N optical switch (with one input port and N output ports) is used to connect N WDM devices to add a second beam to one of N beams (called the first beam). For example, in the dynamic quality-optical distribution network (DQ-ODN) solution of a PON network, a 1×N optical switch is needed to connect N WDM devices to add a detection beam (second beam) to one of the N service channels (used to transmit N beams).

[0040] For example, such as Figure 1As shown, taking 16 service channels as an example, an optical line terminal (OLT) (such as an OLT service board) has 16 optical modules. These 16 optical modules are connected to 16 optical distribution networks (ODNs) via 16 optical fibers, and each ODN is then connected to terminal equipment. A detection beam is combined into one of the 16 service channels to detect that service channel or the service beam within that channel. Sixteen WDM devices are connected one-to-one with these 16 service channels (these 16 WDM devices are not interconnected), and the 16 output ports of a 1×16 optical switch are connected one-to-one with these 16 service channels. The detection beam enters from one input port of the 1×16 optical switch. The optical switch connects this input port to one of the 16 output ports, thereby transmitting the detection beam to that output port, and then to the WDM device connected to that output port. Then, the WDM device can combine the detection beam with the service beam in one of the service channels connected to the WDM device and output it to the corresponding ODN.

[0041] However, the overall structure of a 1×N optical switch connecting N WDM devices is complex and bulky, resulting in high material and labor costs. Furthermore, connecting the 1×N optical switch to each WDM device requires fiber optic adapters or fiber optic splices at the connection points. Given the complexity of the overall structure and the large number of required fiber optic adapters or splices, the deployment of a 1×N optical switch connecting N WDM devices is clearly challenging.

[0042] Based on this, the present application provides an optical device that can combine a second beam with a first beam among multiple beams. Moreover, compared to connecting N WDM devices with a 1×N optical switch, the complexity and deployment difficulty of the optical device are reduced.

[0043] For example, Figure 2 This is a schematic diagram of the structure of an optical device provided in an embodiment of this application. Figure 3 for Figure 2 Right view of the fiber optic array. Figure 3 It shows Figure 2 The fiber optic array has multiple ports, including multiple first ports 01, multiple second ports 02, and a third port 03. Combined with... Figure 2 and Figure 3 The optical device provided in this application includes: a plurality of first ports 01, a plurality of second ports 02, a third port 03, a collimating lens 04, a filtering structure 05, and a reflecting structure 06.

[0044] Multiple first ports 01 and multiple second ports 02 are one-to-one, and each first port 01 and its corresponding second port 02 are symmetrically distributed about the optical axis of the collimating lens 04. These ports can all be attached to the surface of the collimating lens 04, or they can all be spaced apart from the collimating lens 04.

[0045] The aforementioned ports (including multiple first ports 01, multiple second ports 02, and a third port 03) can be arranged in one or more rows (e.g., two rows). For example, when multiple ports are arranged in a row, they can be arranged as follows: Figure 3 or Figure 4 As shown; when multiple ports are arranged in multiple rows, the multiple ports are arranged as follows: Figure 5 , Figure 6 , Figure 7 or Figure 8 The two-dimensional array shown, wherein, Figure 5 and Figure 7 The third port 03 is not shown. It is understood that, in addition to multiple first ports 01, multiple second ports 02, and a third port 03, these multiple ports may also include at least one unused port, such as... Figure 6 and Figure 8 Each shows an available port. Figure 6 and Figure 8 The third port 03 and the idle port can be swapped.

[0046] The third port 03 can be located anywhere. For example, the third port 03 is located on the optical axis of the collimating lens 04. Or, multiple first ports 01 and multiple second ports 02 are located within a closed region, and the third port 03 is located outside that closed region.

[0047] Collimating lens 04 is used to receive a first beam from a target first port 01, a second beam from a third port 03, and to transmit both the received first and second beams to a filtering structure 05. The target first port can be any one of a plurality of first ports 01. Different beams transmitted from collimating lens 04 to filtering structure 05 have different incident angles on filtering structure 05. Collimating lens 04 can be implemented using a graded-index lens, a cylindrical lens, a spherical lens, or an aspherical lens. These lenses can all change the transmission direction of the passing beam, so that beams from different ports have different transmission directions when transmitted to filtering structure 05, thereby having different incident angles on filtering structure 05.

[0048] The filter structure 05 is used to reflect light beams of some wavelengths and transmit light beams of other wavelengths. For example, the wavelength of the first light beam is different from the wavelength of the second light beam. The wavelength of the light beam reflected by the filter structure 05 includes the wavelength of the light beam from the first port 01 (such as the wavelength of the first light beam); the wavelength of the light beam transmitted by the filter structure 05 includes the wavelength of the second light beam from the third port 03. Therefore, the filter structure 05 is used to reflect the first light beam and transmit the second light beam. The filter structure 05 may include multiple filter layers with different refractive indices arranged alternately. By designing the refractive indices of these filter layers, the reflection of light beams of some wavelengths and the transmission of light beams of other wavelengths can be achieved.

[0049] Collimating lens 04 is used to transmit the first light beam, which passes sequentially through collimating lens 04 and filter structure 05, to the corresponding second port 02. Since different light beams transmitted from collimating lens 04 to filter structure 05 have different incident angles on filter structure 05, different light beams reflected from filter structure 05 to collimating lens 04 have different exit angles on filter structure 05. When the first port 01 and the corresponding second port 02 are symmetrically distributed about the optical axis of collimating lens 04, collimating lens 04 can transmit the light beam reflected from each first port 01 by filter structure 05 to the corresponding second port 02. Therefore, collimating lens 04 can transmit the first light beam reflected from the target first port 01 by filter structure 05 to the target second port 02 corresponding to the target first port 01.

[0050] The reflection structure 06 is used to reflect the second light beam, which has passed through the collimating lens 04 and the filtering structure 05 in sequence, back to the filtering structure 05, so that the second light beam and the first light beam have the same transmission direction from the filtering structure 05 to the collimating lens 04. In this embodiment, after the reflection structure 06 reflects the second light beam, which has passed through the collimating lens 04 and the filtering structure 05 in sequence, back to the filtering structure 05, the filtering structure 05 transmits the second light beam back to the collimating lens 04. The reflection structure 06 can control the reflection angle of the second light beam on the reflection structure 06, so that the transmission direction of the second light beam from the filtering structure 05 to the collimating lens 04 is the same as the transmission direction of the first light beam from the target first port from the filtering structure 05 to the collimating lens 04.

[0051] The collimating lens 04 can transmit different beams with the same transmission direction from the filter structure 05 to the same port. Since the transmission direction of the second beam from the filter structure 05 to the collimating lens 04 is the same as the transmission direction of the first beam from the target first port from the filter structure 05 to the collimating lens 04, the collimating lens 04 is also used to transmit the second beam, which passes through the collimating lens 04, the filter structure 05, the reflection structure 06, and the filter structure 05 in sequence, to the target second port 02.

[0052] The following will take the target first port 01 as an example, combined with Figures 9 to 11 The transmission paths of the first beam from the first port 01 and the second beam from the third port 03 are illustrated by example.

[0053] like Figure 9 As shown, the first beam from the first target port 01 is transmitted to the filter structure 05 after passing through the collimating lens 04. The filter structure 05 reflects the received first beam back to the collimating lens 04, and the incident angle and exit angle of the first beam on the filter structure 05 are the same. Then, the collimating lens 04 transmits the first beam to the second target port 02. A simulation diagram of the first beam's transmission through the collimating lens 04 is shown below. Figure 10 As shown.

[0054] like Figure 11 As shown, the second beam from the third port 03 is transmitted to the filter structure 05 after passing through the collimating lens 04. The filter structure 05 transmits the received second beam to the reflecting structure 06. The reflecting structure 06 reflects the second beam back to the filter structure 05 according to the target second port, and then the filter structure 05 transmits the second beam back to the collimating lens 04. Furthermore, the transmission direction of the second beam from the filter structure 05 to the collimating lens 04 is... Figure 9 The first beam from the first port of the target propagates through the filter structure 05 to the collimating lens 04 in the same direction. The second beam propagates through the filter structure 05 to the collimating lens 04 along a path that may be the same as or different from that of the first beam from the first port of the target. Finally, the collimating lens 04 transmits the second beam transmitted from the filter structure 05 to the second port of the target. In this way, the second beam and the first beam from the first port of the target can be combined at the second port of the target.

[0055] In summary, in the optical device provided by this application embodiment, the first beam at the target first port is transmitted to the collimating lens after passing through a collimating lens and a filtering structure in sequence. The collimating lens can transmit the first beam to the target second port corresponding to the target first port. The second beam at the third port is transmitted to the collimating lens after passing through a collimating lens, a filtering structure, a reflection structure, and another filtering structure in sequence. Furthermore, the second beam is reflected by the reflection structure, ensuring that the second beam and the first beam have the same transmission direction from the filtering structure to the collimating lens. In this way, the collimating lens can transmit the second beam to the target second port, achieving the combination of the second beam and the first beam. Moreover, compared to an optical switch connecting multiple WDM devices, the optical device provided by this application embodiment does not require the connection of multiple devices, resulting in lower complexity and deployment difficulty.

[0056] The optical device provided in this application embodiment can not only realize the function of 1×N optical switch + N WDM devices, but also the size of the optical device is comparable to the size of a 1×N optical switch or a WDM device in the related technology. Therefore, the size of the optical device is reduced by more than 90% compared with the overall size of 1×N optical switch + N WDM devices in the related technology, and the estimated cost is reduced by more than half, which greatly simplifies the complexity and deployment difficulty.

[0057] It is understood that while the collimating lens 04 receives the first beam from the target first port 01, it can also receive beams from at least a portion of the first ports 01 (including the target first port) and transmit the beam received from each of these at least a portion of the first ports 01 to the filtering structure 05. The filtering structure 05 can reflect the beam from each of these at least a portion of the first ports 01. The collimating lens 04 can also transmit the beam from each of these at least a portion of the first ports 01, which has passed sequentially through the collimating lens 04 and the filtering structure 05, to the second port 02 corresponding to that first port 01. The wavelengths of the beams from different first ports 01 can be the same or different, and all of them are different from the wavelength of the second beam.

[0058] Optionally, all of the aforementioned ports (including multiple first ports 01, multiple second ports 02, and a third port 03) can be fiber optic ports. In this case, the optical device may include multiple optical fibers; each of the multiple optical fibers corresponds one-to-one with the multiple ports, and each port is a port of the corresponding optical fiber. The multiple ports include multiple first ports 01, multiple second ports 02, and a third port 03. It is understood that the optical device may also not include the multiple optical fibers. For example, the multiple optical fibers can be replaced with a multi-core optical fiber with multiple cores, each core corresponding one-to-one with the multiple ports, and each port being one end of the corresponding core. In this embodiment, the optical device includes the multiple optical fibers as an example; these multiple optical fibers can be arranged in an array to form an FA.

[0059] The aforementioned filter structure 05 can be implemented in various ways. For example, in one optional implementation, the filter structure 05 may include a TFF located on the surface of the collimating lens 04, the TFF comprising the aforementioned plurality of filter layers, the TFF being formed on the surface of the collimating lens 04 using a film-forming process. In another optional implementation, the filter structure 05 includes a filter sheet and an adhesive layer (…). Figure 2 (Not shown in the image), the filter comprises the aforementioned multiple filter layers. The filter can be fixed to the surface of the collimating lens 04 via this adhesive layer.

[0060] The aforementioned reflection structure 06 can also be used to switch the target first port among multiple first ports 01. It can be seen that the reflection structure 06 can be configured to set the reflection angle of the second beam on the reflection structure 06 as needed, so that the second beam can be transmitted to the second port 02 corresponding to any one of the multiple first ports 01, thereby combining the second beam with the beam of that any one first port. Furthermore, when it is necessary to change the combined beam, the reflection structure 06 can change the reflection angle of the second beam on the reflection structure 06 to change the second port to which the second beam is transmitted.

[0061] For example, the reflecting structure 06 has a reflecting surface, which can be used to reflect the second beam. The reflecting structure 06 can change the reflection angle of the second beam on the reflecting structure 06 by changing the tilt angle of the reflecting surface. When the tilt angle of the reflecting surface is compared to... Figure 12 When the beam is tilted 3.3 degrees vertically, the simulated optical path diagram of the second beam is as follows: Figure 12 As shown. The tilt angle of the reflecting surface is compared to... Figure 13 When the beam is tilted 0.2 degrees vertically, the simulated optical path diagram of the second beam is as follows: Figure 13 As shown. Figure 12 and Figure 13 Because the tilt angle of the reflective surface is different, the exit position of the second beam on the side of the collimating lens 04 near the port is different, thus enabling the second beam to be transmitted to different second ports, thereby achieving the switching between the target first port and the target second port.

[0062] The reflective structure 06 may include a MEMS mirror or an LCOS, which can change the reflection angle of the light beam.

[0063] Furthermore, such as Figure 14 As shown, the optical device also includes a relay structure 07, which is located in the optical path between multiple ports and the collimating lens 04. The multiple ports include the aforementioned multiple first ports 01, multiple second ports 02, and a third port 03. The light beam transmitted from each first port 01 to the collimating lens 04 passes through the relay structure 07, the second light beam transmitted from the third port 03 to the collimating lens 04 also passes through the relay structure 07, and the light beams (such as the first beam and the second beam) transmitted from the collimating lens 04 to each second port 02 pass through the relay structure 07. For example, the relay structure 07 has multiple optical channels corresponding one-to-one with the multiple optical ports. The light beam from each first port or third port is transmitted to the collimating lens 04 through the corresponding optical channel, and the light beam from the collimating lens 04 that needs to be transmitted to each second port is transmitted to that second port through the corresponding optical channel.

[0064] The transmission direction of any beam (such as the first beam and the second beam mentioned above) passing through the relay structure 07 remains unchanged. However, for any two ports among the multiple ports, the distance between the corresponding positions of these two ports on the collimating lens 04 (for example, equal to...) Figure 15 h2) is less than the distance between the two ports (e.g., equal to h2). Figure 15 h1), wherein the beam from each port can be transmitted through the relay structure 07 to the corresponding position of that port on the collimating lens 04.

[0065] When the distance between any two ports at their corresponding positions on the collimating lens 04 is less than the distance between the two ports, compared to not having the relay structure 07, the incident angle of the light beam from each port on the filtering structure 05 after passing through the collimating lens is reduced. With this reduced incident angle, the wavelength shift of the filtering structure 05 is reduced, thereby enabling the filtering structure 05 to more accurately reflect the first light beam and more accurately transmit the second light beam.

[0066] As can be seen, the relay structure 07 can reduce the spacing of the optical channels. The relay structure 07 may include devices that can reduce the spacing of the optical channels, such as planar lightwave (PLC) chips or laser direct-write waveguide elements.

[0067] In the above embodiments, the optical device includes one third port as an example. It can be understood that the optical device may also include multiple third ports. The second beams from different third ports, after passing through the collimating lens 04 (or the relay structure 07 and the collimating lens 04) and the filtering structure 05 in sequence, will be transmitted to different regions of the reflecting structure 06. Each region in the reflecting structure 06 can independently set the reflection angle of the received second beam so that the second beam is transmitted to the desired second port.

[0068] In addition, such as Figure 2 or Figure 14 As shown, the optical device may also include a base 08, and a reflective structure 06 can be fixed on the base 08. The controller of the reflective structure 06 ( Figure 2 and Figure 14 (Not shown) The reflective structure 06 can be connected to the base 08 via a connecting line 09. The controller and the reflective structure 06 are located on opposite sides of the base 08. The optical device may also include a protective cap 10, which is fixed to the same side of the base 08 and surrounds the reflective structure 06 to protect it.

[0069] This application also provides an optical module. The optical module can be a pluggable optical module or a non-pluggable optical module. For example, the optical module provided in this application includes a controller and any of the optical devices provided in this application. The controller is connected to the optical device and is used to control the reflection structure in the optical device to switch the target first port between multiple first ports.

[0070] For example, such as Figure 16 As shown, the optical module includes gold fingers, a controller, an optical fiber interface, and the aforementioned optical devices (such as...). Figure 2 or Figure 14 (The optical device shown). The controller connects to the reflective structure in the optical device, and the fiber optic interface connects to the optical fiber in the optical device. The optical module may also include a power supply for powering the reflective structure and the controller. The controller is pluggable onto a board at one end of the optical module. When the optical module is plugged into the board, the controller in the optical module can connect to the board via gold fingers. The board can transmit electrical signals for controlling the reflective structure to the controller, so that the controller controls the reflective structure to set the reflection angle of the received second beam according to the electrical signals. The optical module may also include a housing, in which all components except the housing are located.

[0071] This application also provides a board that includes the aforementioned controller and any of the optical devices provided in the embodiments of this application. The controller is connected to the optical device and is used to control the reflection structure in the optical device to switch the target first port between multiple first ports. Optionally, the board may include an optical module that includes the controller and the aforementioned optical device.

[0072] This application also provides a communication device (such as a box-type device or a frame-type device), which may include: a plurality of first components and second components, and any of the optical devices provided in the embodiments of this application (such as...). Figure 2 or Figure 14 The optical device shown is described above. Each of the plurality of first components is connected one-to-one with a plurality of first ports in the optical device; for example, each of the plurality of first components is connected one-to-one with a plurality of optical fibers in the optical device, thereby connecting to the plurality of first ports. The first component corresponding to the target first port is used to provide a first beam to the target first port. The second component is connected to a third port in the optical device, and the second component is used to provide a second beam to the third port.

[0073] Optionally, the first component mentioned above may be a service optical module on a service board. The board including the controller and the optical device provided in this embodiment may be called a multiplexing board. The multiplexing board and the service board may be the same or different. The communication device includes the service board and the multiplexing board. The second component mentioned above may be disposed on the service board or the multiplexing board, or it may be disposed outside the service board or the multiplexing board.

[0074] Optionally, the second beam can be a detection beam. In this case, the second component is also used to receive the reflected second beam from the third port and detect the transmission quality or transmission path of the first beam based on the reflected second beam. For example, the second component includes an OAI or an OTDR. It is understood that after the second beam is transmitted from the third port to the optical device, it is transmitted by the optical device to the target second port. Then, the second beam is reflected back to the third port during transmission. Therefore, the second component can receive the reflected second beam from the third port. The second beam may also not be a detection beam; for example, the second beam may be a pump beam. In this case, the second component does not need to receive the reflected second beam from the third port.

[0075] In this application, the terms “first” and “second” are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0076] It should be noted that all service beams involved in this application are authorized by the user or fully authorized by all parties, and the collection, use, and processing of the relevant service beams must comply with the relevant laws, regulations, and standards of the relevant countries and regions. For example, the service beams involved in this application were all obtained under full authorization.

[0077] The above description is merely an embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An optical device, characterized in that, include: Collimating lens, filtering structure and reflection structure; The collimating lens is used to receive a first beam from a target first port among a plurality of first ports, receive a second beam from a third port, and transmit both the first beam and the second beam to the filtering structure; the target first port is any one of the plurality of first ports; the wavelength of the second beam is different from the wavelength of the first beam; the plurality of first ports and the plurality of second ports correspond one-to-one, and each first port and its corresponding second port are symmetrically distributed about the optical axis of the collimating lens; The filtering structure is used to reflect the first beam and transmit the second beam; The collimating lens is used to transmit the first light beam, which passes through the collimating lens and the filtering structure in sequence, to the target second port corresponding to the target first port; The reflection structure is used to reflect the second light beam, which passes through the collimating lens and the filtering structure in sequence, back to the filtering structure, so that the second light beam has the same transmission direction as the first light beam as it is transmitted from the filtering structure to the collimating lens; The collimating lens is also used to transmit the second light beam, which passes through the collimating lens, the filtering structure, the reflection structure, and the filtering structure in sequence, to the target second port.

2. The optical device according to claim 1, characterized in that, The reflection structure is also used to switch the target first port among the plurality of first ports.

3. The optical device according to claim 2, characterized in that, The reflective structure includes a microelectromechanical system (MEMS) reflector.

4. The optical device according to any one of claims 1 to 3, characterized in that, The collimating lens is a graded-index lens.

5. The optical device according to any one of claims 1 to 4, characterized in that, The filtering structure includes a thin-film filter (TFF) located on the surface of the collimating lens; Alternatively, the filtering structure includes a filter element and an adhesive layer, wherein the filter element is fixed to the surface of the collimating lens by the adhesive layer.

6. The optical device according to any one of claims 1 to 5, characterized in that, The optical device includes multiple optical fibers; The multiple optical fibers correspond one-to-one with multiple ports, and each of the multiple ports is a port of the corresponding optical fiber. The multiple ports include the multiple first ports, the multiple second ports, and the multiple third ports.

7. The optical device according to any one of claims 1 to 6, characterized in that, Multiple ports are arranged in two rows, including multiple first ports, multiple second ports, and multiple third ports.

8. The optical device according to any one of claims 1 to 7, characterized in that, The optical device further includes a relay structure located in the optical path between multiple ports and the collimating lens. The multiple ports include multiple first ports, multiple second ports, and a third port. The transmission direction of any beam passing through the relay structure remains unchanged. For any two ports among the plurality of ports, the distance between the corresponding positions of the two ports on the collimating lens is less than the distance between the two ports, wherein the light beam from each port can be transmitted to the corresponding position of the port on the collimating lens through the relay structure.

9. The optical device according to any one of claims 1 to 8, characterized in that, The second beam is either the optical intelligent board OAI detection beam or the optical time domain reflectometer (OTDR) detection beam.

10. An optical module, characterized in that, include: A controller, and an optical device according to any one of claims 1 to 9, wherein the controller is connected to the optical device and the controller is used to control the reflective structure to switch the target first port between a plurality of first ports.

11. A circuit board, characterized in that, include: A controller, and an optical device according to any one of claims 1 to 9, wherein the controller is connected to the optical device and the controller is used to control the reflective structure to switch the target first port between a plurality of first ports.

12. A communication device, characterized in that, include: A plurality of first and second components, and the optical device according to any one of claims 1 to 9; The plurality of first components are connected one-to-one with the plurality of first ports, and the first component corresponding to the target first port is used to provide a first beam to the target first port; The second component is connected to the third port, and the second component is used to provide the second beam to the third port.

13. The communication device according to claim 12, characterized in that, The second component is also configured to receive the reflected second beam from the third port and, based on the reflected second beam, detect the transmission quality of the first beam or the transmission path of the first beam.

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