Optical module transceiver

Abstract

The invention discloses an optical module transceiving device, and belongs to the technical field of communication. The optical module transmitting and receiving device comprises an optical assembly, a circuit processing unit and a shell, the optical assembly and the circuit processing unit are arranged in the shell, the circuit processing unit comprises a plurality of transmitting and receiving modules, and each transmitting and receiving module comprises at least one of a receiving unit and a transmitting unit. The optical assembly comprises a wavelength division multiplexer (WDM) and a wavelength division multiplexer (WDM); the wave combining WDM is used for carrying out wave combining processing on the optical signals transmitted by the plurality of transmitting units and then sending the optical signals to the wave combining and splitting WDM; and the wave combining and separating WDM is used for carrying out wave separating processing on various received optical signals sent by the optical network unit, respectively sending each optical signal obtained after wave separating processing to the corresponding receiving unit, carrying out primary filtering on a wave combining signal sent by the wave combining WDM, and then transmitting the wave combining signal to an external optical fiber.

Description

Technical Field

[0001] This application belongs to the field of communication technology, specifically relating to an optical module transceiver device. Background Technology

[0002] With the rapid development of access network technology, optical fiber communication technology, and 5G, users have increasingly higher requirements for bandwidth and latency. Among related technologies, the most widely deployed technology integrates two signal modes: Gigabit-capable passive optical networks (GPON) and 10-Gigabit-capable symmetric passive optical networks (10GPON). However, the optical transceivers in these technologies can only fuse optical signals from these two modes and cannot meet the needs of integrating higher-speed passive optical fiber networks. Summary of the Invention

[0003] This application aims to provide an optical transceiver device that at least solves the problem that optical transceivers in related technologies are incompatible with higher-speed passive fiber optic networks.

[0004] This application provides an optical module transceiver device, including: an optical component, a circuit processing unit, and a housing. The optical component and the circuit processing unit are disposed within the housing. The circuit processing unit includes multiple transceiver modules, each of which includes at least one of a receiving unit and a transmitting unit. The optical component includes a wavelength division multiplexer (WDM) and a multiplexer (WDM). The WDM (Wave Divergence Divergence) is used to combine optical signals emitted by multiple transmitting units and then send them to the WDM. The WDM (Wavelength Division Multiplexing) is used to perform wavelength division processing on multiple optical signals received from the optical network unit, and to send each optical signal obtained after wavelength division processing to the corresponding receiving unit, and to filter the combined signal sent by the WDM before transmitting it to the external optical fiber.

[0005] In the embodiments of this application, the optical transceiver includes: an optical component, a circuit processing unit, and a housing. The optical component and the circuit processing unit are disposed within the housing. The circuit processing unit includes multiple transceiver modules, each of which includes at least one of a receiving unit and a transmitting unit. The optical component includes a wavelength division multiplexer (WDM) and a wavelength multiplexer (WDM). The wavelength multiplexer (WDM) is used to perform wavelength multiplexing processing on optical signals transmitted by multiple transmitting units and then transmit them to the wavelength multiplexer (WDM). The wavelength multiplexer (WDM) is used to perform wavelength division processing on multiple optical signals received from optical network units and transmit each optical signal obtained after wavelength division processing to the corresponding receiving unit. It also performs a single filtering on the wavelength multiplexer (WDM) signal transmitted by the wavelength multiplexer (WDM) and then transmits it to an external optical fiber. This application embodiment can perform wavelength division and multiplexing of waves of different wavelengths through the wavelength division and multiplexing capabilities of optical components. By using the wavelength division and multiplexing capabilities of optical components, multiple transceiver modules with different bandwidths can be integrated into one optical transceiver device, making the transceiver device compatible with low-speed PON, high-speed PON and even higher-speed PON. It can realize the coexistence of multiple generations of PON in a passive optical network and can work simultaneously. The optical signals emitted by multiple transmitting units can be transmitted to the external optical fiber after one filtering by wavelength division and multiplexing WDM, which can reduce the loss of optical energy. Attached Figure Description

[0006] Figure 1 This is a structural block diagram of the optical module transceiver device provided in the embodiments of this application; Figure 2 This is a schematic diagram of the structure of the optical module transceiver device provided in the embodiments of this application; Figure 3 This is a schematic diagram of the structure of the WDM multiplexing provided in the embodiments of this application; Figure 4 This is a schematic diagram of the structure of the combined / splitter WDM provided in the embodiments of this application; Figure 5 The waveform division diagram provided in this application embodiment.

[0007] in: 1-Optical components, 2-Circuit processing unit, 3-Housing, 10-Pin assembly, 11-Synthesizing and splitting converging lens, 12-WDM (Wavelength Division Multiplexing), 121-Wavelength Division Prism, 122-First WDM Filter, 123-Second WDM Filter, 124-Third WDM Filter, 125-Fourth WDM Filter, 126-Reflection Filter 13-Wave condenser (WDM), 131-First parallelogram prism, 132-Second parallelogram prism, 133-Third parallelogram prism 14-Second Isolator 15-Collimating lens 16-GPON OLT Transmitting Unit, 17-10G PON OLT Transmitting Unit, 18-50G PON OLT Transmitting Unit 20-50G PON OLT receiving unit, 21-10G PON OLT receiving unit, 22-GPON OLT receiving unit, 23-45 degree cemented prism, 24-Second SOA coupling lens, 26-First SOA 27-First SOA coupling lens, 28 - First isolator. Detailed Implementation

[0008] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0009] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0010] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0011] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0012] The optical module transceiver device provided in this application will be described in detail below with reference to the figures, through specific embodiments and application scenarios.

[0013] like Figures 1 to 5 The diagram shown is a structural schematic of an optical transceiver device according to an embodiment of this application. The optical transceiver device may include: an optical component 1, a circuit processing unit 2, and a housing 3. The optical component 1 and the circuit processing unit 2 are disposed within the housing 3. The circuit processing unit 2 includes multiple transceiver modules, each including at least one of a receiving unit and a transmitting unit. The optical component 1 includes a wavelength division multiplexer (WDM) 12 and a multiplexer WDM 13.

[0014] Among them, the WDM13 is used to perform multiple-wave multiplexing on optical signals transmitted by multiple transmitting units and then send them to the WDM12; the WDM12 is used to perform multiple-wave multiplexing on optical signals received from optical network units and send each optical signal after wave multiplexing to the corresponding receiving unit, and to filter the multiplexed signal sent by the WDM13 before sending it to the external optical fiber.

[0015] It is worth noting that multiple transceiver modules can be passive optical network (PON) transceiver modules with the same speed, or they can be PON transceiver modules with different speeds, such as Gigabit-capable passive optical networks optical line terminal (GPON OLT) transceiver modules, 10GPON OLT transceiver modules, 50GPON OLT transceiver modules, etc., or they can be PON transceiver modules with other speeds. This embodiment will not describe them one by one, and the actual application shall prevail.

[0016] In other words, the optical transceiver device provided in this embodiment can include not only GPON transceiver modules and 10GPON transceiver modules in related technologies, but also higher-speed 50GPON transceiver modules, or transceiver modules of other speeds. Moreover, it does not require an external multiplexer / demultiplexer device for 50GPON modules or other modules. Multiple transceiver modules can be packaged in a small form-factor pluggable-double-density (SFP-DD) transceiver device, achieving miniaturized packaging and enabling coexistence of multiple generations of PON to meet upgrade requirements.

[0017] In the embodiments of this application, the optical transceiver includes: an optical component, a circuit processing unit, and a housing. The optical component and the circuit processing unit are disposed within the housing. The circuit processing unit includes multiple transceiver modules, each of which includes at least one of a receiving unit and a transmitting unit. The optical component includes a wavelength division multiplexer (WDM) and a wavelength multiplexer (WDM). The wavelength multiplexer (WDM) is used to perform wavelength multiplexing processing on optical signals transmitted by multiple transmitting units and then transmit them to the wavelength multiplexer (WDM). The wavelength multiplexer (WDM) is used to perform wavelength division processing on multiple optical signals received from optical network units and transmit each optical signal obtained after wavelength division processing to the corresponding receiving unit. It also performs a single filtering on the wavelength multiplexer (WDM) signal transmitted by the wavelength multiplexer (WDM) and then transmits it to an external optical fiber. This application embodiment can perform wavelength division and multiplexing of waves of different wavelengths through the wavelength division and multiplexing capabilities of optical components. By using the wavelength division and multiplexing capabilities of optical components, multiple transceiver modules with different bandwidths can be integrated into one optical transceiver device, making the transceiver device compatible with low-speed PON, high-speed PON and even higher-speed PON. It can realize the coexistence of multiple generations of PON in a passive optical network and can work simultaneously. The optical signals emitted by multiple transmitting units can be transmitted to the external optical fiber after one filtering by wavelength division and multiplexing WDM, which can reduce the loss of optical energy.

[0018] In one possible embodiment of this application, the WDM13 includes a first parallelogram prism 131, a second parallelogram prism 132, and a third parallelogram prism 133. The second hypotenuse of the first parallelogram prism 131 is fitted with the first hypotenuse of the second parallelogram prism 132, and the second hypotenuse of the second parallelogram prism 132 is fitted with the first hypotenuse of the third parallelogram prism 133. The first parallelogram prism 131, the second parallelogram prism 132, and the third parallelogram prism 133 are all 45° parallelogram prisms.

[0019] The first light ray is transmitted from the first bottom edge of the first parallelogram prism 131 to the first inclined edge of the first parallelogram prism 131, and after total internal reflection by the first inclined edge of the first parallelogram prism 131, it is transmitted to the second inclined edge of the first parallelogram prism 131, and then transmitted through the second inclined edge of the first parallelogram prism 131 into the second parallelogram prism 132, and then transmitted through the second inclined edge of the second parallelogram prism 132 into the third parallelogram prism 133, and after total internal reflection by the second inclined edge of the third parallelogram prism 133, it is transmitted through the second bottom edge of the third parallelogram prism 133 to the wave combiner / splitter WDM12; the second light ray is transmitted from the first bottom edge of the second parallelogram prism 132 to the first inclined edge of the second parallelogram prism 132, and then transmitted through the second inclined edge of the second parallelogram prism 132 into the third parallelogram prism 133. The first inclined side of 32 is totally reflected and transmitted to the second inclined side of the second parallelogram prism 132, and then transmitted through the second inclined side of the second parallelogram prism 132 into the third parallelogram prism 133. After total reflection through the second inclined side of the third parallelogram prism 133, it is transmitted through the second bottom side of the third parallelogram prism 133 and then transmitted to the combiner / splitter WDM12. The third ray is transmitted through the first bottom side of the third parallelogram prism 133 to the first inclined side of the third parallelogram prism 133, and after total reflection through the first inclined side of the third parallelogram prism 133, it is transmitted to the second inclined side of the third parallelogram prism 133. After total reflection through the second inclined side of the third parallelogram prism 133, it is transmitted through the second bottom side of the third parallelogram prism 133 and then transmitted to the combiner / splitter WDM12.

[0020] It should be noted that, due to bandwidth limitations, the third ray cannot be an optical signal emitted by the GPON transmitting unit.

[0021] In this embodiment, the WDM13 is made of at least three 45-degree parallelogram prisms bonded together. The middle bonded surface has transmission and reflection functions, the side opposite the bonded surface is the reflection surface with total internal reflection function, and the side adjacent to the bonded surface has transmission function. The WDM13 can combine multiple optical signals into a single beam for emission.

[0022] In one possible embodiment of this application, three types of transmitting units are described as examples. The transmitting units include a Gigabit Passive Optical Network (GPON) OLT transmitting unit 16, a 10G PON OLT transmitting unit 17, and a 50G PON OLT transmitting unit 18. The GPON OLT transmitting unit 16 transmits a first optical signal, the 10G PON OLT transmitting unit 17 transmits a second optical signal, and the 50G PON OLT transmitting unit 18 transmits a third optical signal, wherein the third optical signal is either the second optical signal or the third optical signal.

[0023] Wherein, when the third ray is the second light signal, the first ray is the first light signal and the second ray is the third light signal; or when the third ray is the second light signal, the first ray is the third light signal and the second ray is the first light signal; when the third ray is the third light signal, the first ray is the first light signal and the second ray is the second light signal; or when the third ray is the third light signal, the first ray is the second light signal and the second ray is the first light signal.

[0024] In other words, the third ray cannot be the first light signal, in order to avoid affecting the synthesis.

[0025] In one specific embodiment of this application, three types of PON OLTs are used as examples for illustration. The wavelengths of the three types of PON OLTs are arranged from left to right as the first, second, and third type optical signals (third ray λ1, second ray λ2, and first ray λ3). It is required that the leftmost λ1 cannot be a GPON OLT TX (1480nm~1500nm) optical signal. The following four permutations of the three types of optical signals can be combined from left to right: Combination 1: λ1 = 10G PON OLT TX (1575 nm~1581 nm), λ2 = GPON OLT TX (1480 nm~1500 nm), λ3 = 50G PON OLT TX (1300 nm~1344 nm); Combination 2: λ1=50G PON OLT TX (1300 nm~1344nm), λ2=GPON OLT TX (1480 nm~1500nm), λ3=10G PON OLT TX (1575 nm~1581nm); Combination 3: λ1=10G PON OLT TX (1575 nm~1581nm), λ2=50G PON OLT TX (1300 nm~1344nm), λ3=GPON OLT TX (1480 nm~1500nm); Combination 4: λ1=50G PON OLT TX (1300 nm~1344nm), λ2=10G PON OLT TX (1575 nm~1581nm), λ3=GPON OLT TX (1480 nm~1500nm).

[0026] In one possible embodiment of this application, the optical component 1 may further include a collimating lens 15 and a second isolator 14, wherein the collimating lens 15 is used to shape the input first optical signal, second optical signal and third optical signal and output parallel light.

[0027] The second optical signal emitted by the 10G PON OLT transmitting unit 17 is input to the second isolator 14 after passing through the collimating lens 15, and then output to the multiplexing / demultiplexing WDM12 after passing through the multiplexing / demultiplexing WDM13. The third optical signal emitted by the 50G PON OLT transmitting unit 18 is input to the second isolator 14 after passing through the collimating lens 15, and then output to the multiplexing / demultiplexing WDM12 after passing through the multiplexing / demultiplexing WDM13. The second isolator 14 is used to prevent the second optical signal from being reflected back to the 10G PON OLT transmitting unit 17 and to prevent the third optical signal from being reflected back to the 50G PON OLT transmitting unit 18. The first optical signal emitted by the GPON OLT transmitting unit 16 is input to the multiplexing / demultiplexing WDM13 after passing through the collimating lens 15, and then output to the multiplexing / demultiplexing WDM12 after passing through the multiplexing / demultiplexing WDM13.

[0028] The optical signals emitted by the GPON OLT transmitting unit 16, 10G PON OLT transmitting unit 17, and 50G PON OLT transmitting unit 18 are processed by the collimating lens 15 to obtain parallel light, so that the light can enter the multiplexing WDM 13 perpendicularly, allowing the first, second, and third optical signals to be better combined into a single beam. Before entering the multiplexing WDM 13, the optical signals can also pass through the second isolator 14 to prevent the emitted optical signals from being reflected back and affecting the output quality of the optical signals.

[0029] It is worth noting that because the transmission rate of the GPON transmitter is relatively low, the optical signal emitted by the GPON transmitter can be bypassed by the isolator, thereby reducing costs.

[0030] In one possible embodiment of this application, the multiplexing / demultiplexing WDM12 includes a wave-splitting prism 121, a first wave-splitting filter 122, a second wave-splitting filter 123, a third wave-splitting filter 124, a fourth wave-splitting filter 125, and a reflection filter 126. The first bottom edge of the first wave-splitting filter 122, the first bottom edge of the second wave-splitting filter 123, the first bottom edge of the third wave-splitting filter 124, and the first bottom edge of the fourth wave-splitting filter 125 are all attached to the first bottom edge of the wave-splitting prism 121. The first bottom edge of the reflection filter 126 is attached to the second bottom edge of the wave-splitting prism 121. The first bottom edge and the second bottom edge of the wave-splitting prism 121 are arranged opposite to each other.

[0031] In this process, multiple optical signals transmitted by the optical network unit are input to the first wavelength division multiplexing filter 122 after passing through the second bottom edge and the first bottom edge of the wavelength division multiplexing prism 121. After total internal reflection at the second bottom edge of the first wavelength division multiplexing filter 122, they are input to the wavelength division multiplexing prism 121. After passing through the first bottom edge and the second bottom edge of the wavelength division multiplexing prism 121, they are input to the reflection filter 126. After total internal reflection at the second bottom edge of the reflection filter 126, they are input to the wavelength division multiplexing prism 121. After passing through the second bottom edge and the first bottom edge of the wavelength division multiplexing prism 121, they are input to the second wavelength division multiplexing filter 123. The fourth optical signal is transmitted through the second bottom edge of the second wavelength division multiplexing filter 123 and is received by the corresponding receiving unit. The fifth and sixth optical signals are input to the wavelength division multiplexing prism 121 after total internal reflection at the second bottom edge of the second wavelength division multiplexing filter 123. After passing through the first bottom edge and the second bottom edge of the wavelength division multiplexing prism 121, they are input to the reflection filter 126. After reflection... After total reflection at the second bottom edge of filter 126, the signal is input to the wave-splitting prism 121. After passing through the second and first bottom edges of the wave-splitting prism 121, the signal is input to the third wave-splitting filter 124. The fifth optical signal is transmitted through the second bottom edge of the third wave-splitting filter 124 and received by the corresponding receiving unit. The sixth optical signal is input to the wave-splitting prism 121 after total reflection at the second bottom edge of the third wave-splitting filter 124. After passing through the first and second bottom edges of the wave-splitting prism 121, the signal is input to the reflection filter 126. After total reflection at the second bottom edge of the reflection filter 126, the signal is input to the wave-splitting prism 121. After passing through the second and first bottom edges of the wave-splitting prism 121, the signal is input to the fourth wave-splitting filter 125. The sixth optical signal is transmitted through the second bottom edge of the fourth wave-splitting filter 125 and received by the corresponding receiving unit. The fourth and fifth optical signals each include optical signals of at least one wavelength.

[0032] In other words, the WDM12 multiplexer has the functions of wavelength division and filtering. The WDM12 can perform wavelength division processing on multiple optical signals sent by the Optical Network Unit (ONU) and output them in several wavelengths. It can also filter the multiplexed signal sent by the WDM13 and transmit it to the external optical fiber.

[0033] In this embodiment, the wave-multiplexing WDM13 is composed of multiple prisms. The wave-splitting prism 121 is a transparent prism that transmits various optical signals sent by the optical network unit. The second bottom edge of the transparent prism 121 can be a coated interface. The combined signal sent by the wave-multiplexing WDM13 undergoes a first filtering process at this coated interface, reducing signal loss and resulting in greater emitted light energy. The first wave-multiplexing filter 122 transmits the combined signal sent by the wave-multiplexing WDM13 and performs total internal reflection on various optical signals sent by the optical network unit. The reflective filter 126 performs total internal reflection on various optical signals sent by the optical network unit. The second wave-multiplexing filter 123, the third wave-multiplexing filter 124, and the fourth wave-multiplexing filter 125 can transmit optical signals of corresponding wavelengths and perform total internal reflection on optical signals of other wavelengths. The number of wave-multiplexing filters can be multiple, depending on the number and wavelength type of the optical signals. The specific number depends on the actual application and is not limited in this embodiment.

[0034] It is worth noting that the ONU may include GPON ONU, 10GPON ONU, 50GPON ONU, and optical signals of other wavelengths, depending on the actual application; this embodiment does not impose any limitations. Accordingly, the sixth optical signal is the optical signal transmitted by the GPON ONU, the fifth optical signal is the optical signal transmitted by the 10GPON ONU, and the fourth optical signal is the optical signal transmitted by the 50GPON ONU.

[0035] In this embodiment, by using a wavelength division prism 121, a reflective filter 126, and multiple wavelength division filters, different optical signals can be processed by wavelength division and filtering to obtain multiple single optical signals. These signals are then input to different receiving units and converted into electrical signals for output. This allows the transceiver device to receive optical signals of various wavelengths and transmit multiple combined signals of different wavelengths. In other words, the optical module transceiver device in this embodiment can receive and transmit optical signals of various bandwidths, satisfying the requirement that the optical module transceiver device is compatible with multiple PONs of different rates. This means it can handle incident light from different directions, ensuring that the optical signals incident on the optical module transceiver device and the optical signals emitted by the optical module transceiver device do not interfere with each other.

[0036] In one possible embodiment of this application, the fourth optical signal is an optical signal that can be received by the 50G PON OLT receiving unit 20, the fifth optical signal is an optical signal that can be received by the 10G PON OLT receiving unit 21, and the sixth optical signal is an optical signal that can be received by the 10G PON OLT receiving unit 22.

[0037] Optical component 1 may also include a first semiconductor optical amplifier (SOA) coupling lens 27, a first SOA 26, and a second SOA coupling lens 24.

[0038] The fourth optical signal is transmitted through the second bottom edge of the second wavelength division multiplexing filter 123 and then input to the first SOA coupling lens 27 to form a converging light. After being amplified by the first SOA 26, it is input to the second SOA coupling lens 24 to form a converging light, which is then input to the 50G PON OLT receiving unit. The fifth optical signal is transmitted through the second bottom edge of the third wavelength division multiplexing filter 124 and then input to the second SOA coupling lens 24 to form a converging light, which is then input to the 10G PON OLT receiving unit. The sixth optical signal is transmitted through the second bottom edge of the fourth wavelength division multiplexing filter 125 and then input to the second SOA coupling lens 24 to form a converging light, which is then input to the 10G PON OLT receiving unit.

[0039] In other words, the first SOA coupling lens 27 has a converging function, the first SOA 26 has a signal amplification function, and the second SOA coupling lens 24 has a converging function.

[0040] In this embodiment, the fourth optical signal, after being transmitted through the wavelength division multiplexing filter, can be focused by the first SOA coupling lens 27, making the optical signal more concentrated and avoiding signal loss. Then, after being amplified by the first SOA 26, it is focused again by the second SOA coupling lens 24 before being input to the 50G PON OLT receiving unit. Since the fifth and sixth optical signals have lower transmission rates, they can bypass the first SOA coupling lens 27 and the first SOA 26 and be directly focused by the second SOA coupling lens 24 before being input to their respective receiving units.

[0041] Since the fifth and sixth optical signals have low transmission rates, they can be focused by an avalanche photodiode (APD) and then input to the corresponding receiving unit.

[0042] In other words, low-rate or high signal-to-noise ratio wavelength signals can be directly received by avalanche diodes to output high-sensitivity signals.

[0043] In one possible embodiment of this application, the fifth optical signal is transmitted through the second bottom edge of the third wavelength division filter 124 and then input to the first SOA coupling lens 27 to form a converging light. After being amplified by the first SOA 26, it is input to the second SOA coupling lens 24 to form a converging light that is then input to the 10G PON OLT receiving unit.

[0044] In other embodiments, to avoid signal loss, the fifth optical signal, after being transmitted through the wavelength division multiplexing filter, can also be focused by the first SOA coupling lens 27 to make the optical signal more focused. After being amplified by the first SOA 26, it is then focused again by the second SOA coupling lens 24 before being input to the 10G PON OLT receiving unit.

[0045] In one possible embodiment of this application, the optical component 1 further includes a first isolator 28 and a 45-degree cemented folding prism 23.

[0046] The fourth optical signal is transmitted through the second bottom edge of the second wavelength division multiplexing filter 123 and then input to the first isolator 28. The fifth optical signal is transmitted through the second bottom edge of the third wavelength division multiplexing filter 124 and then input to the first isolator 28. The first isolator 28 is used to prevent the fourth optical signal from being reflected back to the second wavelength division multiplexing filter 123 and to prevent the fifth optical signal from being reflected back to the third wavelength division multiplexing filter 124. The fourth, fifth, and sixth optical signals are all connected by the second SOA coupling lens 24 and then input to the 45-degree cemented prism 23. After the 45-degree cemented prism 23 turns the optical signal by 90 degrees, it enters the corresponding receiving unit.

[0047] In this embodiment, the optical signal can pass through the second isolator 14 before entering the first SOA coupling lens 27 to prevent the emitted optical signal from being reflected back and affecting the output quality of the optical signal. Since the display of the receiving unit is on the side that we can see, the optical path needs to be turned 90 degrees. That is, before entering the corresponding receiving unit, the optical signal can also be turned 90 degrees by a 45-degree cemented turning prism 23. This also shortens the size of the housing 3 in the first direction, which refers to the direction in which the optical signal sent by the optical network unit enters the optical component 1.

[0048] It is worth noting that because the transmission rate of the GPON transmitter is relatively low, the optical signal emitted by the GPON transmitter can be bypassed by the isolator, thereby reducing costs.

[0049] In one possible embodiment of this application, the fourth optical signal includes a first sub-optical signal and a second sub-optical signal. The first sub-optical signal is an optical signal that can be received by a 50G PON OLT receiving unit, and the second sub-optical signal is an optical signal that can be received by a 10G PON OLT receiving unit.

[0050] Optical assembly 1 also includes a first SOA coupling lens 27, a first SOA 26, a wave splitter WDM, and a second SOA coupling lens 24.

[0051] The fourth optical signal is transmitted through the second bottom edge of the second wavelength division filter 123 and then input to the first SOA coupling lens 27 to form a focused light. After being amplified by the first SOA 26, it is input to the wavelength division WDM for wavelength division processing to obtain the first sub-optical signal and the second sub-optical signal. The first sub-optical signal is input to the second SOA coupling lens 24 to form a focused light and then input to the 50GPON OLT receiving unit. The second sub-optical signal is input to the second SOA coupling lens 24 to form a focused light and then input to the 10G PONOLT receiving unit.

[0052] In other words, a multi-wavelength filter of the WDM12 can transmit optical signals of multiple wavelengths. After passing through the WDM, the i wavelengths are demultiplexed into i channels. After coupling, the i wavelength optical signals are converted into strong electrical signals for output, achieving ultra-high sensitivity.

[0053] In one possible embodiment of this application, the optical component 1 further includes a pin assembly 10.

[0054] Among them, the various optical signals sent by the optical network unit are input to the multiplexing and demultiplexing WDM12 through the ferrule assembly 10 for demultiplexing processing; the optical signals sent by multiple transmitting units are processed by the multiplexing and demultiplexing WDM13 and then input to the multiplexing and demultiplexing WDM12. After the multiplexing and demultiplexing WDM12, they are input to the ferrule assembly 10 and then transmitted to the external optical fiber through the ferrule assembly 10.

[0055] In other words, the various optical signals sent by the receiving optical network unit and the optical signals sent by multiple transmitting units all need to be transmitted through the pin assembly 10.

[0056] In one possible embodiment of this application, the incident angle of the optical signal transmitted by the transmitting unit to the multiplexing / splitting WDM12 is 6° to 20°; the incident angle of the optical signal transmitted by the optical network unit to the multiplexing / splitting WDM12 is 2° to 8°.

[0057] This embodiment also includes a multiplexing / demultiplexing lens 11. The GPON OLT transmitting unit 16 transmits a first optical signal (1480 nm to 1500 nm), the 10G PON OLT transmitting unit 17 transmits a second optical signal (1575 nm to 1581 nm), and the 50G PON OLT transmitting unit 18 transmits a third optical signal (1300 nm to 1344 nm). After being multiplexed by the WDM 13, the signals are combined and then incident at an angle of 6° to 20° onto the multiplexing / demultiplexing WDM 12. After being combined by the multiplexing / demultiplexing lens 11, the signals are output.

[0058] Multiple optical signals transmitted by the optical network unit are input from the pin assembly 10 into the optical assembly 1, shaped into parallel light by the wave combiner / decomposer lens 11, and incident at an incident angle of 2 to 8° onto the wave combiner / decomposer 12. After multiple total internal reflections, the signals are input into the corresponding receiving unit.

[0059] The optical transceiver device provided in this application embodiment can integrate multiple transceiver modules with different bandwidths into one transceiver device through the wavelength division and multiplexing capabilities of the optical component 1. This allows the transceiver device to be compatible with low-speed PON, high-speed PON and even higher-speed PON, enabling multiple generations of PON to coexist in a passive optical network and work simultaneously.

[0060] In the description of this application, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0061] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An optical module transceiver, characterized in that, include: Optical component (1), circuit processing unit (2) and housing (3), the optical component (1) and the circuit processing unit (2) are disposed in the housing (3), the circuit processing unit (2) includes multiple transceiver modules, each of the transceiver modules includes at least one of a receiving unit and a transmitting unit, the optical component (1) includes a wavelength division multiplexer (WDM) (12) and a multiplexer (WDM) (13). The WDM (13) is used to perform multiple-wave multiplexing on the optical signals emitted by multiple transmitting units and then send them to the WDM (12). The multiplexing and splitting waveguide (WDM) (12) is used to perform wave division processing on multiple optical signals received from the optical network unit, and to send each optical signal obtained after wave division processing to the corresponding receiving unit, and to filter the multiplexed signal sent by the multiplexing waveguide (WDM) (13) and then transmit it to the external optical fiber.

2. The optical module transceiver according to claim 1, characterized in that, The wave combiner (WDM) (13) includes a first parallelogram prism (131), a second parallelogram prism (132), and a third parallelogram prism (133). The second hypotenuse of the first parallelogram prism (131) is fitted with the first hypotenuse of the second parallelogram prism (132), and the second hypotenuse of the second parallelogram prism (132) is fitted with the first hypotenuse of the third parallelogram prism (133). The first parallelogram prism (131), the second parallelogram prism (132), and the third parallelogram prism (133) are all 45° parallelogram prisms. The first light ray is transmitted from the first bottom edge of the first parallelogram prism (131) to the first oblique edge of the first parallelogram prism (131), and after total internal reflection from the first oblique edge of the first parallelogram prism (131), it is transmitted to the second oblique edge of the first parallelogram prism (131), and then transmitted from the second oblique edge of the first parallelogram prism (131) into the second parallelogram prism (132), and then transmitted from the second oblique edge of the second parallelogram prism (132) into the third parallelogram prism (133), and after total internal reflection from the second oblique edge of the third parallelogram prism (133), it is transmitted from the second bottom edge of the third parallelogram prism (133) to the wave combiner / splitter (WDM) (12). The second light ray is transmitted from the first bottom edge of the second parallelogram prism (132) to the first oblique edge of the second parallelogram prism (132), and after total internal reflection from the first oblique edge of the second parallelogram prism (132), it is transmitted to the second oblique edge of the second parallelogram prism (132), and then transmitted from the second oblique edge of the second parallelogram prism (132) into the third parallelogram prism (133). After total internal reflection from the second oblique edge of the third parallelogram prism (133), it is transmitted from the second bottom edge of the third parallelogram prism (133) to the wave combiner / splitter (WDM) (12). The third ray is transmitted via the first bottom edge of the third parallelogram prism (133) to the first oblique edge of the third parallelogram prism (133), and after total internal reflection via the first oblique edge of the third parallelogram prism (133), it is transmitted to the second oblique edge of the third parallelogram prism (133), and after total internal reflection via the second oblique edge of the third parallelogram prism (133), it is transmitted through the second bottom edge of the third parallelogram prism (133) to the wave combiner / splitter (WDM) (12).

3. The optical module transceiver according to claim 2, characterized in that, The transmitting unit includes a Gigabit Passive Optical Network Optical Line Terminal (GPON OLT) transmitting unit (16), a 10G PON OLT transmitting unit (17), and a 50G PON OLT transmitting unit (18). The GPON OLT transmitting unit (16) transmits a first optical signal, the 10G PON OLT transmitting unit (17) transmits a second optical signal, and the 50G PON OLT transmitting unit (18) transmits a third optical signal. The third optical signal is either the second optical signal or the third optical signal. When the third ray is the second optical signal, the first ray is the first optical signal, and the second ray is the third optical signal; or When the third ray is the second light signal, the first ray is the third light signal, and the second ray is the first light signal; When the third ray is the third optical signal, the first ray is the first optical signal, and the second ray is the second optical signal; or When the third ray is the third optical signal, the first ray is the second optical signal, and the second ray is the first optical signal.

4. The optical module transceiver according to claim 2, characterized in that, The WDM (12) includes a wave-splitting prism (121), a first wave-splitting filter (122), a second wave-splitting filter (123), a third wave-splitting filter (124), a fourth wave-splitting filter (125), and a reflective filter (126). The first bottom edge of the first wave-splitting filter (122), the first bottom edge of the second wave-splitting filter (123), the first bottom edge of the third wave-splitting filter (124), and the first bottom edge of the fourth wave-splitting filter (125) are all attached to the first bottom edge of the wave-splitting prism (121). The first bottom edge of the reflective filter (126) is attached to the second bottom edge of the wave-splitting prism (121). The first bottom edge and the second bottom edge of the wave-splitting prism (121) are arranged opposite to each other. The various optical signals transmitted by the optical network unit are input to the first wavelength division multiplexing filter (122) after passing through the second bottom edge and the first bottom edge of the wavelength division multiplexing prism (121). After total reflection at the second bottom edge of the first wavelength division multiplexing filter (122), they are input to the wavelength division multiplexing prism (121). After passing through the first bottom edge and the second bottom edge of the wavelength division multiplexing prism (121), they are input to the reflection filter (126). After total reflection at the second bottom edge of the reflection filter (126), they are input to the wavelength division multiplexing prism (121). The second bottom edge and the first bottom edge of the wave-splitting prism (121) are then input to the second wave-splitting filter (123). The fourth optical signal is transmitted through the second bottom edge of the second wave-splitting filter (123) and received by the corresponding receiving unit. The fifth and sixth optical signals are totally reflected by the second bottom edge of the second wave-splitting filter (123) and then input to the wave-splitting prism (121). After passing through the first bottom edge and the second bottom edge of the wave-splitting prism (121), they are input to the reflection filter (126). After total internal reflection at the second bottom edge of the waveplate (126), the signal is input to the wave-splitting prism (121). After passing through the second and first bottom edges of the wave-splitting prism (121), the signal is input to the third wave-splitting filter (124). The fifth optical signal is transmitted through the second bottom edge of the third wave-splitting filter (124) and received by the corresponding receiving unit. The sixth optical signal is input to the wave-splitting prism (121) after total internal reflection at the second bottom edge of the third wave-splitting filter (124). After passing through the wave-splitting prism (121)... The first and second bottom edges are input to the reflective filter (126). After total reflection by the second bottom edge of the reflective filter (126), the signal is input to the wave-splitting prism (121). After passing through the second and first bottom edges of the wave-splitting prism (121), the signal is input to the fourth wave-splitting filter (125). The sixth optical signal is transmitted through the second bottom edge of the fourth wave-splitting filter (125) and received by the corresponding receiving unit. The fourth and fifth optical signals both include optical signals of at least one wavelength.

5. The optical module transceiver according to claim 4, characterized in that, The fourth optical signal is an optical signal that can be received by the 50G PONOLT receiving unit (20), the fifth optical signal is an optical signal that can be received by the 10G PON OLT receiving unit (21), and the sixth optical signal is an optical signal that can be received by the GPON OLT receiving unit (22). The optical component (1) also includes a first semiconductor optical amplifier (SOA) coupling lens (27), a first SOA (26), and a second SOA coupling lens (24); The fourth optical signal is transmitted through the second bottom edge of the second wavelength division filter (123) and then input to the first SOA coupling lens (27) to form a focused light. After being amplified by the first SOA (26), it is input to the second SOA coupling lens (24) to form a focused light and then input to the 50G PON OLT receiving unit. The fifth optical signal is transmitted through the second bottom edge of the third wavelength division filter (124) and then input to the second SOA coupling lens (24) to form a focused light, which is then input to the 10G PON OLT receiving unit. The sixth optical signal is transmitted through the second bottom edge of the fourth wavelength division filter (125) and then input to the second SOA coupling lens (24) to form a converged light, which is then input to the GPON OLT receiving unit.

6. The optical module transceiver according to claim 5, characterized in that, The fifth optical signal is transmitted through the second bottom edge of the third wavelength division filter (124) and then input to the first SOA coupling lens (27) to form a converging light. After being amplified by the first SOA (26), it is input to the second SOA coupling lens (24) to form a converging light, which is then input to the 10GPON OLT receiving unit.

7. The optical module transceiver according to claim 5 or 6, characterized in that, The optical component (1) also includes a first isolator (28) and a 45-degree cemented folding prism (23). The fourth optical signal is transmitted through the second bottom edge of the second wavelength division multiplexing filter (123) and then input to the first isolator (28). The fifth optical signal is transmitted through the second bottom edge of the third wavelength division multiplexing filter (124) and then input to the first isolator (28). The first isolator (28) is used to prevent the fourth optical signal from being reflected back to the second wavelength division multiplexing filter (123) and to prevent the fifth optical signal from being reflected back to the third wavelength division multiplexing filter (124). The fourth, fifth, and sixth optical signals all converge after passing through the second SOA coupling lens (24) and are then input to the 45-degree cemented turning prism (23). After the 45-degree cemented turning prism (23) turns the optical signals by 90 degrees, they enter the corresponding receiving units.

8. The optical module transceiver according to claim 4, characterized in that, The fourth optical signal includes a first sub-optical signal and a second sub-optical signal. The first sub-optical signal is an optical signal that can be received by a 50G PON OLT receiving unit, and the second sub-optical signal is an optical signal that can be received by a 10G PON OLT receiving unit. The optical assembly (1) also includes a first SOA coupling lens (27), a first SOA (26), a wavelength division multiplexing (WDM), and a second SOA coupling lens (24). The fourth optical signal is transmitted through the second bottom edge of the second wavelength division filter (123) and then input to the first SOA coupling lens (27) to form a focused light. After being amplified by the first SOA (26), it is input to the wavelength division WDM for wavelength division processing to obtain the first sub-optical signal and the second sub-optical signal. The first sub-optical signal is input to the second SOA coupling lens (24) to form a focused light and then input to the 50G PON OLT receiving unit. The second sub-optical signal is input to the second SOA coupling lens (24) to form a focused light and then input to the 10G PON OLT receiving unit.

9. The optical module transceiver according to claim 1, characterized in that, The optical component (1) also includes a pin assembly (10); The various optical signals sent by the optical network unit are input to the multiplexing and demultiplexing WDM (12) through the pin assembly (10) for demultiplexing processing; The optical signals emitted by multiple transmitting units are processed by the WDM (13) and then input to the WDM (12). After passing through the WDM (12), they are input to the ferrule assembly (10) and then transmitted through the ferrule assembly (10) to the external optical fiber.

10. The optical module transceiver according to claim 1, characterized in that, The incident angle of the optical signal transmitted by the transmitting unit onto the multiplexing and splitting wave WDM (12) is 6° to 20°; The incident angle of the optical signal transmitted by the optical network unit to the multiplexing and splitting wave WDM (12) is 2° to 8°.

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