Optical module transceiver

Abstract

The invention discloses an optical module transmitting-receiving device, and belongs to the technical field of communication, the optical module transmitting-receiving device comprises an optical assembly and a circuit processing unit which are arranged in a shell, and the circuit processing unit comprises a first transmitting-receiving module, a second transmitting-receiving module and a third transmitting-receiving module; the first transceiving module comprises a first receiving unit and a first transmitting unit, the second transceiving module comprises a second receiving unit and a second transmitting unit, and the third transceiving module comprises a third receiving unit and a third transmitting unit; the optical component receives and performs wave division processing on optical signals sent by the optical network unit, and sends the optical signals after wave division to the first receiving unit, the second receiving unit and the third receiving unit respectively; the first transmitting unit transmits a fourth optical signal to the optical assembly, the second transmitting unit transmits a fifth optical signal to the optical assembly, the third transmitting unit transmits a sixth optical signal to the optical assembly, and the optical assembly performs wave combination processing on the received optical signals and then transmits the optical signals to an external optical fiber.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to an optical module transceiver. Background Art

[0002] With the rapid development of access network technology, optical fiber communication technology and 5G, users have higher and higher requirements for bandwidth and latency. In the related technology, large-scale deployment is to integrate the two signal modes of Gigabit-capable passive optical networks (GPON) and 10-Gigabit symmetric passive optical networks (10GPON). The optical transceiver device of the related technology can only integrate the optical signals in the above two modes, which cannot meet the needs of integrating higher-speed passive optical fiber networks. Summary of the invention

[0003] The present application aims to provide an optical module transceiver device, which at least solves the problem in the related art that the optical transceiver device is not compatible with a higher-speed passive optical fiber network.

[0004] In a first aspect, an embodiment of the present application provides an optical module transceiver device, comprising: an optical component, a circuit processing unit and a housing, wherein the optical component and the circuit processing unit are arranged in the housing, and the circuit processing unit comprises a first transceiver module, a second transceiver module and a third transceiver module;

[0005] The first transceiver module includes a first receiving unit and a first transmitting unit, the second transceiver module includes a second receiving unit and a second transmitting unit, and the third transceiver module includes a third receiving unit and a third transmitting unit;

[0006] The optical component receives the optical signal sent by the optical network unit and performs wavelength division processing, and the optical component sends the first optical signal, the second optical signal and the third optical signal after the wavelength division processing to the first receiving unit, the second receiving unit and the third receiving unit respectively;

[0007] The first transmitting unit transmits a fourth optical signal to the optical component, the second transmitting unit transmits a fifth optical signal to the optical component, the third transmitting unit transmits a sixth optical signal to the optical component, and the optical component combines the fourth optical signal, the fifth optical signal and the sixth optical signal and sends them to an external optical fiber;

[0008] Among them, the first transceiver module, the second transceiver module and the third transceiver module are transceiver modules with three different bandwidths.

[0009] In an embodiment of the present application, the optical module transceiver device may include an optical component, a circuit processing unit and a shell, the optical component and the circuit processing unit are arranged in the shell, the circuit processing unit includes a first transceiver module, a second transceiver module and a third transceiver module, the first transceiver module includes a first receiving unit and a second receiving unit, the second transceiver module includes a second receiving unit and a second transmitting unit, the third transceiver module includes a third receiving unit and a third transmitting unit, the optical component receives an optical signal sent by an optical network unit and performs a wavelength division processing, the optical writing component divides the first optical signal, the second optical signal and the third optical signal after the wavelength division processing and sends them to the first receiving unit, the second receiving unit and the third receiving unit, the first transmitting unit transmits a fourth optical signal to the optical component, the second transmitting unit transmits a fifth optical signal to the optical component, the third transmitting unit transmits a sixth optical signal to the optical component, the optical component performs a wavelength division processing on the fourth optical signal, the fifth optical signal and the sixth optical signal and sends them to an external optical fiber, wherein the first transceiver module, the second transceiver module and the third transceiver module are three transceiver modules with different bandwidths. The optical module transceiver device provided in the embodiment of the present application can integrate three transceiver modules with different bandwidths into one transceiver device through the wave splitting and combining capabilities of optical components, so that the transceiver device can be compatible with low-rate PON, high-rate PON and higher-rate PON, and can realize the coexistence of three generations of PON in one passive optical network and can work simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a structural block diagram of an optical module transceiver provided in an embodiment of the present application;

[0011] Figure 2 It is a structural schematic diagram of the optical module transceiver device provided in an embodiment of the present application;

[0012] Figure 3 It is a schematic diagram of the structure in the structure assembly cavity provided in the embodiment of the present application;

[0013] Figure 4 It is a schematic diagram of the structure inside the launch cavity provided in an embodiment of the present application.

[0014] in:

[0015] 1- Optical components,

[0016] 10-pin assembly,

[0017] 11-structure assembly cavity, 110-wave combining and decomposing convergent optical lens, 111-first wave splitting filter, 112-second wave splitting filter, 113-third wave splitting filter, 114-first receiving reflection lens, 115-second receiving reflection lens, 116-third receiving reflection lens, 117-first receiving convergent lens, 118-second receiving convergent lens, 119-third receiving convergent lens, 1110-first isolation filter, 1111-second isolation filter, 1112-third isolation filter,

[0018] 12-transmitting cavity, 120-cavity structure, 121-wave combining component, 1221-first isolator, 1222-second isolator, 124-collimating lens,

[0019] 2-Circuit processing unit,

[0020] 21-first transceiver module, 211-first receiving unit, 212-first transmitting unit,

[0021] 22-second transceiver module, 221-second receiving unit, 222-second transmitting unit,

[0022] 23-third transceiver module, 231-third receiving unit, 232-third transmitting unit,

[0023] 3- Shell. DETAILED DESCRIPTION

[0024] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0025] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this application, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0026] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0027] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] In the following, in conjunction with the accompanying drawings, an optical module transceiver device provided in an embodiment of the present application is described in detail through specific embodiments and application scenarios.

[0029] like Figure 1-Figure 4 The figure is a schematic diagram of the structure of an optical module transceiver device provided in an embodiment of the present application. The optical module transceiver device may include: an optical component 1, a circuit processing unit 2 and a housing 3, wherein the optical component 1 and the circuit processing unit 2 are arranged in the housing 3, and the circuit processing unit 2 includes a first transceiver module 21, a second transceiver module 22 and a third transceiver module 23.

[0030] Among them, the first transceiver module 21 includes a first receiving unit 211 and a first transmitting unit 212, the second transceiver module 22 includes a second receiving unit 221 and a second transmitting unit 222, and the third transceiver module 23 includes a third receiving unit 231 and a third transmitting unit 232; the optical module receives the optical signal sent by the optical network unit and performs wavelength division processing, and the optical component 1 divides the first optical signal, the second optical signal and the third optical signal after the wavelength division processing and sends them to the first receiving unit 211, the second receiving unit 221 and the third receiving unit 231; the first transmitting unit 212 transmits a fourth optical signal to the optical component 1, the second transmitting unit 222 transmits a fifth optical signal to the optical component 1, and the third transmitting unit 232 transmits a sixth optical signal to the optical component 1, and the optical component 1 combines the fourth optical signal, the fifth optical signal and the sixth optical signal and sends them to the external optical fiber; among them, the first transceiver module 21, the second transceiver module 22 and the third transceiver module 23 are three transceiver modules with different bandwidths.

[0031] It should be noted that the first transceiver module 21 can be a Gigabit-capable passive optical networks Optical Line Terminal (GPON OLT) transceiver module, the second transceiver module 22 can be a 10GPON OLT transceiver module, and the third transceiver module 23 can be a 50GPON OLT transceiver module. Correspondingly, the first receiving unit 211 can be a Gigabit passive optical network optical line terminal uplink receiving GPON OLT RX uplink receiving unit, the first transmitting unit 212 is a Gigabit passive optical network optical line terminal transmitting GPON OLT TX transmitting unit, the second receiving unit 221 is a 10GPON OLT RX uplink receiving unit, the second transmitting unit 222 is a 10GPON OLT TX transmitting unit, the third receiving unit 231 is a 50GPON OLT RX uplink receiving unit, and the third transmitting unit 232 is a 50GPON OLT TX transmitting unit.

[0032] Among them, the GPON receiving unit can receive an optical signal with a wavelength of 1290nm~1330nm, that is, a first optical signal, the GPON transmitting unit can transmit an optical signal with a wavelength of 1480nm~1500nm, that is, a fourth optical signal, the 10GPON receiving unit can receive an optical signal with a wavelength of 1260nm~1280nm, that is, a second optical signal, the 10GPON transmitting unit can transmit an optical signal with a wavelength of 1575nm~1580nm, that is, a fifth optical signal, the 50GPON receiving unit can receive an optical signal with a wavelength of 1284nm~1288nm, that is, a third optical signal, and the 50GPON transmitting unit can transmit an optical signal with a wavelength of 1340nm~1344nm, that is, a sixth optical signal.

[0033] That is to say, the optical module transceiver device provided in this embodiment can not only include the GPON transceiver module and 10GPON transceiver module in the related technology, but also include a higher-speed 50GPON transceiver module, and there is no need for an additional 50GPON module external combiner / splitter device. The three transceiver modules can be packaged in a small form factor pluggable double density (SmallForm-Factor Pluggable-Double Density, SFP-DD) transceiver device to achieve miniaturized packaging, and can achieve the coexistence of three generations of PON to meet upgrade requirements.

[0034] It should be noted that the three transceiver modules may also be PON transceiver modules of other rates, which shall be subject to actual application and is not specifically limited in this embodiment.

[0035] In an embodiment of the present application, the optical module 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 arranged in the housing 3, the circuit processing unit 2 includes a first transceiver module 21, a second transceiver module 22 and a third transceiver module 23, the first transceiver module 21 includes a first receiving unit 211 and a second receiving unit 221, the second transceiver module 22 includes a second receiving unit 221 and a second transmitting unit 222, the third transceiver module 23 includes a third receiving unit 231 and a third transmitting unit 232, the optical component 1 receives the optical signal sent by the optical network unit, and performs a wavelength division process , the optical writing component demultiplexes the first optical signal, the second optical signal and the third optical signal after the demultiplexing process and sends them to the first receiving unit 211, the second receiving unit 221 and the third receiving unit 231, the first transmitting unit 212 transmits the fourth optical signal to the optical component 1, the second transmitting unit 222 transmits the fifth optical signal to the optical component 1, the third transmitting unit 232 transmits the sixth optical signal to the optical component 1, the optical component 1 performs wave combining process on the fourth optical signal, the fifth optical signal and the sixth optical signal and sends them to the external optical fiber, wherein the first transceiver module 21, the second transceiver module 22 and the third transceiver module 23 are three transceiver modules with different bandwidths. The optical module transceiver device provided in the embodiment of the present application can integrate three transceiver modules with different bandwidths into one transceiver device through the wave splitting and wave combining capabilities of the optical component 1, so that the transceiver device can be compatible with low-rate PON, high-rate PON and higher-rate PON, and can realize the coexistence of three generations of PON in one passive optical network, and can work simultaneously.

[0036] In a possible embodiment of the present application, the optical component 1 may include a pin assembly 10, a structural assembly cavity 11, and a first wave splitting filter 111, a third wave splitting filter 113, a second wave splitting filter 112, a wave combining and converging lens 110, a first receiving reflection lens 114, a third receiving reflection lens 116 and a second receiving reflection lens 115 arranged inside the structural assembly cavity 11; the first receiving unit 211, the second receiving unit 221 and the third receiving unit 231 are all arranged in the structural assembly cavity 11.

[0037] The optical signal sent by the optical network unit is transmitted from the pin assembly 10 to the wave combining and demultiplexing converging optical lens 110, and is demultiplexed by the wave combining and demultiplexing converging optical lens 110 to form a parallel first optical signal, a second optical signal and a third optical signal; the second optical signal is reflected by the second wave splitting filter 112 and transmitted to the second receiving reflection lens 115, and then reflected by the second receiving reflection lens 115 and input to the second receiving unit 221; the third optical signal is transmitted through the second wave splitting filter 112 and transmitted to the third wave splitting filter 113, and is reflected by the third wave splitting filter 113 and transmitted to the third receiving reflection lens 116, and then reflected by the third receiving reflection lens 116 and input to the third receiving unit 231; the first optical signal is transmitted through the second wave splitting filter 112 and the third wave splitting filter 113 and transmitted to the first wave splitting filter 111, and is transmitted to the first receiving reflection lens 114 after being emitted by the first wave splitting filter 111, and then reflected by the first receiving reflection lens 114 and input to the first receiving unit 211.

[0038] That is to say, the optical signal sent by the optical network unit (Optical Network Unit, ONU) is subjected to wavelength division processing by using the first wavelength division filter 111, the second wavelength division filter 112 and the third wavelength division filter 113, wherein each wavelength division filter can only reflect the optical signal corresponding to it and transmit other optical signals, that is, the second wavelength division filter 112 can only reflect the second optical signal and transmit the first optical signal and the third optical signal, the third wavelength division filter 113 can only reflect the third optical signal and transmit the first optical signal, and the first wavelength division filter 111 can only reflect the first optical signal. The optical signal after passing through the wavelength division filter is then input into the first receiving unit 211 after passing through the receiving reflection lens.

[0039] It is worth noting that ONU includes GPON ONU, 10GPON ONU and 50GPON ONU. Accordingly, the first optical signal is an optical signal sent by GPON ONU, the second optical signal is an optical signal sent by 10GPON ONU, and the third optical signal is an optical signal sent by 50GPON ONU.

[0040] In this embodiment, different optical signals can be demultiplexed by using a wavelength splitting filter to obtain three single optical signals, which are respectively input into different receiving units and converted into electrical signals for output, so that the transceiver device can receive optical signals of three different wavelengths. That is, the optical module transceiver device in this embodiment can receive optical signals of three different bandwidths, thereby satisfying the compatibility of the optical module transceiver device with three PONs with different rates.

[0041] In a possible embodiment of the present application, the optical component 1 may also include a transmitting cavity 12 connected to the structural assembly cavity 11, and a combining component 121 arranged inside the transmitting cavity 12 and close to the structural assembly cavity 11; the first transmitting unit 212, the second transmitting unit 222 and the third transmitting unit 232 are all arranged in the transmitting cavity 12.

[0042] Among them, the fourth optical signal emitted by the first transmitting unit 212, the fifth optical signal emitted by the second transmitting unit 222, and the sixth optical signal emitted by the third transmitting unit 232 are combined by the combining component 121 and transmitted to the structural assembly cavity 11. After the combined signal passes through the first splitting filter 111, the third splitting filter 113, the second splitting filter 112, the combining and splitting convergence lens 110, and the pin assembly 10, it is sent to the external optical fiber.

[0043] That is, the optical signals emitted by the first transmitting unit 212 , the second transmitting unit 222 , and the third transmitting unit 232 may be combined by using the combining component 121 , and then coupled to an external optical fiber for output.

[0044] In this embodiment, different optical signals can be combined by the combining component 121, so that the optical module transceiver can send three optical signals with different bandwidths, so that the optical module transceiver is compatible with three PONs with different rates.

[0045] In a possible implementation of the present application, the wave combining component 121 may include a first parallelogram prism, a first right-angle prism, a second parallelogram prism, and a second right-angle prism, the hypotenuse of the first right-angle prism is arranged in affixed relation with the first hypotenuse of the first parallelogram prism, the hypotenuse of the second right-angle prism is arranged in affixed relation with the first hypotenuse of the second parallelogram prism, and the first right-angle side of the second right-angle prism is arranged in affixed relation with the first base of the first parallelogram prism, the first parallelogram prism and the second parallelogram prism are both 45° parallelogram prisms, and the first right-angle prism and the second right-angle prism are both 45° right-angle prisms;

[0046] The first light is transmitted to the second hypotenuse of the first parallelogram prism via the second base of the first parallelogram prism, and then transmitted to the first hypotenuse of the first parallelogram prism after total reflection of the second hypotenuse of the first parallelogram prism. After total reflection of the first hypotenuse of the first parallelogram prism, the first light is transmitted to the hypotenuse of the second right-angled prism via the first right-angled side of the second right-angled prism which is attached to the first base of the first parallelogram prism, and then transmitted through the hypotenuse of the second right-angled prism, and then transmitted to the structural assembly cavity 11 via the first base of the second parallelogram prism. The second light is transmitted to the structural assembly cavity 11 via the first right-angled side of the first right-angled prism. The right-angle edge is transmitted to the hypotenuse of the first right-angle prism, and after passing through the hypotenuse of the first right-angle prism, it is transmitted to the hypotenuse of the second right-angle prism through the first edge, and then transmitted to the structural assembly cavity 11 through the first base of the second parallelogram prism; the third light is transmitted to the second hypotenuse of the second parallelogram prism through the second base of the second parallelogram prism, and is transmitted to the first hypotenuse of the second parallelogram prism after total reflection of the second hypotenuse of the second parallelogram prism, and after total reflection of the first hypotenuse of the second parallelogram prism, it is transmitted to the structural assembly cavity 11 through the first base of the second parallelogram prism.

[0047] It should be noted that, due to bandwidth influence, the first light cannot be an optical signal emitted by the GPON transmitting unit.

[0048] In this embodiment, the wave combining component 121 is composed of two groups of 45-degree glued prisms, each group of glued prisms is glued by a 45-degree parallelogram prism and a 45-degree right-angle prism. The wave combining component 121 can combine three optical signals into one beam and send it out.

[0049] In a possible implementation of the present application, the first transceiver module 21 is a gigabit passive optical network optical line terminal GPON OLT transceiver module, the second transceiver module 22 is a 10G PON OLT transceiver module, and the third transceiver module 23 is a 50GPON OLT transceiver module; the first light is the fifth optical signal or the sixth optical signal.

[0050] Among them, when the first light is the fifth light signal, the second light is the fourth light signal, and the third light is the sixth light signal; or when the first light is the fifth light signal, the second light is the sixth light signal, and the third light is the fourth light signal; when the first light is the sixth light signal, the second light is the fourth light signal, and the third light is the fifth light signal; or when the first light is the sixth light signal, the second light is the fifth light signal, and the third light is the fourth light signal.

[0051] That is to say, the first light cannot be the fourth light signal to avoid affecting the synthesis.

[0052] In a specific implementation of the present application, the wavelengths of the three PON OLTs are arranged from left to right as the first, second, and third optical signals (third light λ1, second light λ2, first light λ3), and the rightmost λ3 is not required to be a GPON OLT TX (1480nm~1500nm) optical signal. There are four arrangements and combinations of the three optical signal combinations from left to right:

[0053] Combination 1: λ1 = GPON OLT TX (1480nm ~ 1500nm), λ2 = 10G PON OLT TX (1575nm ~ 1581nm), λ3 = 50G PON OLT TX (1300nm ~ 1344nm);

[0054] Combination 2: λ1 = GPON OLT TX (1480nm ~ 1500nm), λ2 = 50G PON OLT TX (1300nm ~ 1344nm), λ3 = 10G PON OLT TX (1575nm ~ 1581nm);

[0055] Combination 3: λ1 = 10G PON OLT TX (1575nm ~ 1581nm), λ2 = GPON OLT TX (1480nm ~ 1500nm), λ3 = 50G PON OLT TX (1300nm ~ 1344nm);

[0056] Combination 4: λ1=50G PON OLT TX (1300nm~1344nm), λ2=GPON OLT TX (1480nm~1500nm), λ3=10G PON OLT TX (1575nm~1581nm).

[0057] It is worth noting that the above-mentioned combined optical path can be mirrored, that is, the PON OLT TX wavelengths are arranged from right to left as the first, second, and third standard optical signals (first light λ1, second light λ2, third light λ3). At this time, the rightmost λ3 cannot be the GPON OLT TX (1480nm~1500nm optical signal.

[0058] In a possible implementation of the present application, the optical component 1 further includes a collimating lens 124, a first isolator 1221 and a second isolator 1222; wherein the collimating lens 124 is used to output parallel light after shaping the input fourth optical signal, fifth optical signal and sixth optical signal.

[0059] Among them, the fifth optical signal emitted by the second transmitting unit 222 is input into the first isolator 1221 after passing through the collimating lens 124, and then output to the structural assembly cavity 11 after passing through the combining component 121, wherein the first isolator 1221 is used to prevent the fifth optical signal from being reflected back to the second transmitting unit 222; the sixth optical signal emitted by the third transmitting unit 232 is input into the second isolator 1222 after passing through the collimating lens 124, and then output to the structural assembly cavity 11 after passing through the combining component 121, wherein the second isolator 1222 is used to prevent the sixth optical signal from being reflected back to the third transmitting unit 232; the fourth optical signal emitted by the first transmitting unit 212 is input into the combining component 121 after passing through the collimating lens 124, and then output to the structural assembly cavity 11 after passing through the combining component 121.

[0060] The optical signals emitted by the first transmitting unit 212, the second transmitting unit 222 and the third transmitting unit 232 are processed by the collimating lens 124 to obtain parallel light, so that the light can vertically enter the multiplexing component 121, so that the fourth optical signal, the fifth optical signal and the sixth optical signal can be better combined into a beam of light. The optical signal can also pass through an isolator before entering the multiplexing component 121 to prevent the emitted optical signal from being emitted back and affecting the output quality of the optical signal.

[0061] It is worth noting that, since the transmission rate of the GPON transmitting unit is relatively low, the optical signal emitted by the GPON transmitting unit may not be processed by the isolator, thereby reducing the cost.

[0062] In a possible embodiment of the present application, the transmitting cavity 12 includes a cavity structure 120, and the first transmitting unit 212, the second transmitting unit 222, the third transmitting unit 232, the collimating lens 124, the first isolator 1221, the second isolator 1222 and the combining component 121 are all encapsulated in the cavity structure 120, wherein the cavity structure 120 is a closed structure.

[0063] In this embodiment, the first transmitting unit 212, the second transmitting unit 222, the third transmitting unit 232, the collimating lens 124, the first isolator 1221, the second isolator 1222 and the combining component 121 are all encapsulated in a sealed cavity structure 120, which can ensure the airtightness and reliability of the optical device.

[0064] In a possible embodiment of the present application, the incident angle of the second light signal transmitted to the second wave splitting filter 112 is α1, the incident angle of the second light signal transmitted to the second receiving reflective lens 115 is β1, and α1+β1=45°; the incident angle of the third light signal transmitted to the third wave splitting filter 113 is α2, the incident angle of the third light signal transmitted to the third receiving reflective lens 116 is β2, and α2+β2=45°; the incident angle of the first light signal transmitted to the first wave splitting filter 111 is α3, the incident angle of the first light signal transmitted to the first receiving reflective lens 114 is β3, and α3+β3=45°.

[0065] Among them, the value range of α1 can be 2° to 8°, the value range of α2 can be 2° to 8°, and the value range of α3 can be 6° to 20°.

[0066] In a possible embodiment of the present application, the optical component 1 also includes a second isolation filter 1111, a third isolation filter 1112, and a first isolation filter 1110; the second optical signal is reflected by the second receiving reflection lens 115 and input into the second isolation filter 1111, and is filtered by the second isolation filter 1111 and input into the second receiving unit 221; the third optical signal is reflected by the third receiving reflection lens 116 and input into the third isolation filter 1112, and is filtered by the third isolation filter 1112 and input into the third receiving unit 231; the first optical signal is reflected by the first receiving reflection lens 114 and input into the first isolation filter 1110, and is filtered by the first isolation filter 1110 and input into the first receiving unit 211.

[0067] The function of the isolation filter is to transmit only the optical signal of the corresponding wavelength and filter out the optical signals of other wavelengths, that is, to isolate the optical signals of other wavelengths. For example, the first isolation filter 1110 transmits only the first optical signal and isolates the second optical signal and the third optical signal to prevent the second optical signal and the third optical signal from being input to the first receiving unit 211. The functions of other isolation filters are the same, and they are not listed one by one in this embodiment.

[0068] In a possible implementation manner of the present application, the optical component 1 may further include a second receiving and converging lens 118 , a third receiving and converging lens 119 and a first receiving and converging lens 117 .

[0069] Among them, the second optical signal is filtered by the second isolation filter 1111 and then transmitted to the second receiving convergence lens 118, and then input into the second receiving unit 221 after passing through the second receiving convergence lens 118; the third optical signal is filtered by the third isolation filter 1112 and then transmitted to the third receiving convergence lens 119, and then input into the third receiving unit 231 after passing through the third receiving convergence lens 119; therefore, the first optical signal is filtered by the first isolation filter 1110 and then transmitted to the first receiving convergence lens 117, and then input into the first receiving unit 211 after passing through the first receiving convergence lens 117.

[0070] The function of the receiving convergent lens is to converge the received optical signals and then input them into the corresponding receiving unit to avoid signal loss. For example, the first receiving convergent lens 117 is used to converge the received first optical signal and then send it to the first receiving unit 211. The second receiving convergent lens 118 is used to converge the received second optical signal and then send it to the second receiving unit 221. The third receiving convergent lens 119 is used to converge the received third optical signal and then send it to the third receiving unit 231.

[0071] In a specific embodiment of the present application, three types of upstream optical signals GPON OLT RX upstream receiving light (first optical signal λ6=1290nm~1330nm), 10G PON OLT RX upstream receiving optical signal (second optical signal λ4=1260nm~1280nm), 50G PON OLT RX upstream receiving optical signal (third optical signal λ5=1284nm~1288nm) are input from the pin assembly 10 to the structure assembly cavity 11 and are shaped into parallel light by the wave combining and decomposing converging optical lens 110. First, λ4 is reflected by the second wave splitting filter 112, and the incident angle α1 of the second wave splitting filter 112 is between 2° and 8°, and λ5 and λ6 are transmitted through the second wave splitting filter 112. The reflected λ4 is incident on the second receiving reflective lens 115, and is reflected and propagated upward with an incident angle of β1. The reflected light is perpendicular to the OLT TX downstream optical output direction at a 90° angle, and the condition α1+β1=45° is required to be satisfied. Finally, λ4 passes through the second isolation filter 1111, which transmits optical signals with wavelengths of 1260nm to 1280nm and isolates optical signals of other wavelengths. The optical signal then passes through the second receiving convergence lens 118 and enters the second receiving unit 221, which converts the optical signal into an analog electrical signal.

[0072] Further, λ5 and λ6 are transmitted through the second splitter filter 112 and continue to propagate toward the transmitting cavity unit. λ5 encounters the third splitter filter 113, which reflects the optical signal with a wavelength of 1284nm to 1288nm and transmits the optical signal with other wavelengths, and the incident angle α2 is between 2° and 8°, while λ6 is transmitted through the third splitter filter 113, and the reflected λ5 is incident on the third receiving reflection lens 116 again, and is reflected and propagated upward with an incident angle of β2. The reflected upward light forms a 90° vertical angle with the output direction of all combined OLT TX downstream optical signals, and the condition α2+β2=45° is required to be satisfied. Finally, λ5 passes through the third isolation filter 1112, which transmits the optical signal with a wavelength of 1286nm to 1288nm and isolates the optical signal with other wavelengths. The optical signal then passes through the third receiving convergence lens 119 and enters the third receiving unit 231, and the optical signal is converted into an analog electrical signal.

[0073] Further, after being transmitted through the third splitter filter 113, λ6 continues to propagate toward the transmitting cavity unit. λ6 encounters the first splitter filter 111, which reflects the optical signal with a wavelength of 1290nm to 1330nm and transmits the optical signal with other wavelengths, and the incident angle α3 is between 6° and 20°. After propagation, λ6 reaches the first receiving reflection lens 114, is reflected and propagates upward, and its incident angle is β2. The reflected upward light forms a 90° vertical angle with the output direction of all combined OLT TX downstream optical signals, and the condition α3+β3=45° is required to be satisfied. Finally, λ6 passes through the first isolation filter 1110, which transmits the optical signal with a wavelength of 1290nm to 1330nm and isolates the optical signal with other wavelengths. The optical signal then passes through the first receiving convergence lens 117 and enters the first receiving unit 211, which converts the optical signal into an analog electrical signal.

[0074] The optical module transceiver device provided in the embodiment of the present application can integrate three transceiver modules with different bandwidths into one transceiver device through the wave splitting and combining capabilities of the optical component 1, so that the transceiver device can be compatible with low-rate PON, high-rate PON and higher-rate PON, and can realize the coexistence of three generations of PON in one passive optical network and can work simultaneously.

[0075] It should be noted that, in this article, the term "comprises", "includes" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0076] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, a disk, or an optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0077] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. An optical module transceiver, characterized in that: include: An optical component (1), a circuit processing unit (2) and a housing (3), wherein the optical component (1) and the circuit processing unit (2) are arranged in the housing (3), and the circuit processing unit (2) comprises a first transceiver module (21), a second transceiver module (22) and a third transceiver module (23); The first transceiver module (21) comprises a first receiving unit (211) and a first transmitting unit (212), the second transceiver module (22) comprises a second receiving unit (221) and a second transmitting unit (222), and the third transceiver module (23) comprises a third receiving unit (231) and a third transmitting unit (232); The optical component (1) receives an optical signal sent by the optical network unit and performs wavelength division processing, and the optical component (1) sends the first optical signal, the second optical signal and the third optical signal after the wavelength division processing to the first receiving unit (211), the second receiving unit (221) and the third receiving unit (231) respectively; The first transmitting unit (212) transmits a fourth optical signal to the optical component (1), the second transmitting unit (222) transmits a fifth optical signal to the optical component (1), the third transmitting unit (232) transmits a sixth optical signal to the optical component (1), and the optical component (1) performs wavelength combination processing on the fourth optical signal, the fifth optical signal and the sixth optical signal and sends them to an external optical fiber; The first transceiver module (21), the second transceiver module (22) and the third transceiver module (23) are transceiver modules with three different bandwidths.

2. The optical module transceiver according to claim 1, characterized in that: The optical component (1) comprises a pin assembly (10), a structural assembly cavity (11), and a first wave splitting filter (111), a third wave splitting filter (113), a second wave splitting filter (112), a wave combining and splitting light converging lens (110), a first receiving and reflecting lens (114), a third receiving and reflecting lens (116), and a second receiving and reflecting lens (115) arranged inside the structural assembly cavity (11); The first receiving unit (211), the second receiving unit (221) and the third receiving unit (231) are all arranged in the structural assembly cavity (11); The optical signal sent by the optical network unit is transmitted from the pin assembly (10) to the wave combining, demultiplexing and converging optical lens (110), and after being demultiplexed by the wave combining, demultiplexing and converging optical lens (110), parallel first optical signal, second optical signal and third optical signal are formed; The second optical signal is reflected by the second wavelength separation filter (112) and then transmitted to the second receiving reflection lens (115), and then reflected by the second receiving reflection lens (115) and then input into the second receiving unit (221); The third optical signal is transmitted through the second wavelength splitting filter (112) and then transmitted to the third wavelength splitting filter (113), and then transmitted to the third receiving reflection lens (116) after being reflected by the third wavelength splitting filter (113), and then input into the third receiving unit (231) after being reflected by the third receiving reflection lens (116); The first optical signal is transmitted through the second wavelength splitting filter (112) and the third wavelength splitting filter (113) and then transmitted to the first wavelength splitting filter (111). After being emitted by the first wavelength splitting filter (111), the first optical signal is transmitted to the first receiving reflection lens (114), and then reflected by the first receiving reflection lens (114) and input into the first receiving unit (211).

3. The optical module transceiver according to claim 2, characterized in that: The optical component (1) further comprises an emission cavity (12) connected to the structural assembly cavity (11), and a wave combining component (121) arranged inside the emission cavity (12) and close to the structural assembly cavity (11); The first launching unit (212), the second launching unit (222) and the third launching unit (232) are all arranged in the launching cavity (12); The fourth optical signal emitted by the first transmitting unit (212), the fifth optical signal emitted by the second transmitting unit (222), and the sixth optical signal emitted by the third transmitting unit (232) are combined by the combining component (121) and then transmitted to the structural assembly cavity (11); the combined signal passes through the first splitting filter (111), the third splitting filter (113), the second splitting filter (112), the combining and splitting converging optical lens (110), and the pin assembly (10) before being sent to an external optical fiber.

4. The optical module transceiver according to claim 3, characterized in that: The wave combining component (121) comprises a first parallelogram prism, a first right-angle prism, a second parallelogram prism and a second right-angle prism, the hypotenuse of the first right-angle prism is arranged in abutment with the first hypotenuse of the first parallelogram prism, the hypotenuse of the second right-angle prism is arranged in abutment with the first hypotenuse of the second parallelogram prism, and the first right-angle side of the second right-angle prism is arranged in abutment with the first base of the first parallelogram prism, the first parallelogram prism and the second parallelogram prism are both 45° parallelogram prisms, and the first right-angle prism and the second right-angle prism are both 45° right-angle prisms; wherein the first light is transmitted to the second hypotenuse of the first parallelogram prism via the second base of the first parallelogram prism, and then transmitted to the first hypotenuse of the first parallelogram prism after total reflection from the second hypotenuse of the first parallelogram prism, and then transmitted to the hypotenuse of the first parallelogram prism via the first right-angled side of the second right-angle prism which is in contact with the first base of the first parallelogram prism, and then transmitted through the hypotenuse of the second right-angle prism, and then transmitted to the structural assembly cavity (11) via the first base of the second parallelogram prism; The second light is transmitted through the first right-angle side of the first right-angle prism to the hypotenuse of the first right-angle prism, and then transmitted through the hypotenuse of the first right-angle prism through the first side, and then transmitted to the hypotenuse of the second right-angle prism, and then transmitted through the first bottom side of the second parallelogram prism to the structural assembly cavity (11); The third light is transmitted through the second base of the second parallelogram prism to the second hypotenuse of the second parallelogram prism, and then transmitted to the first hypotenuse of the second parallelogram prism after total reflection from the second hypotenuse of the second parallelogram prism, and then transmitted through the first base of the second parallelogram prism to the structural assembly cavity (11) after total reflection from the first hypotenuse of the second parallelogram prism.

5. The optical module transceiver according to claim 4, characterized in that: The first transceiver module (21) is a Gigabit Passive Optical Network Optical Line Terminal (GPON OLT) transceiver module, the second transceiver module (22) is a 10G PON OLT transceiver module, and the third transceiver module (23) is a 50G PON OLT transceiver module; The first light is the fifth light signal or the sixth light signal; In the case where the first light is the fifth light signal, the second light is the fourth light signal, and the third light is the sixth light signal; or In the case where the first light is the fifth light signal, the second light is the sixth light signal, and the third light is the fourth light signal; In the case where the first light is the sixth light signal, the second light is the fourth light signal, and the third light is the fifth light signal; or When the first light is the sixth light signal, the second light is the fifth light signal, and the third light is the fourth light signal.

6. The optical module transceiver according to claim 3, characterized in that: The optical component (1) further comprises a collimating lens (124), a first isolator (1221) and a second isolator (1222); The collimating lens (124) is used to output parallel light after shaping the input fourth optical signal, the fifth optical signal and the sixth optical signal; The fifth optical signal emitted by the second emitting unit (222) is input into the first isolator (1221) after passing through the collimating lens (124), and then output to the structural assembly cavity (11) after passing through the wave combining component (121), wherein the first isolator (1221) is used to prevent the fifth optical signal from being reflected back to the second emitting unit (222); The sixth optical signal emitted by the third emitting unit (232) passes through the collimating lens (124) and is input into the second isolator (1222), and then passes through the wave combining component (121) and is output to the structural assembly cavity (11), wherein the second isolator (1222) is used to prevent the sixth optical signal from being reflected back to the third emitting unit (232); The fourth optical signal emitted by the first emitting unit (212) passes through the collimating lens (124) and is input into the wave combining component (121), and then passes through the wave combining component (121) and is output to the structural assembly cavity (11).

7. The optical module transceiver according to claim 6, characterized in that: The emission cavity (12) comprises a cavity structure (120), wherein the first emission unit (212), the second emission unit (222), the third emission unit (232), a collimating lens (124), a first isolator (1221), a second isolator (1222) and a wave combining component (121) are all encapsulated in the cavity structure (120), wherein the cavity structure (120) is a sealed structure.

8. The optical module transceiver according to claim 2, characterized in that: The incident angle of the second optical signal transmitted to the second wavelength separation filter (112) is α1, the incident angle of the second optical signal transmitted to the second receiving reflection lens (115) is β1, and α1+β1=45°; The incident angle of the third optical signal transmitted to the third wavelength splitting filter (113) is α2, the incident angle of the third optical signal transmitted to the third receiving reflection lens (116) is β2, and α2+β2=45°; The incident angle of the first optical signal transmitted to the first wavelength separation filter (111) is α3, the incident angle of the first optical signal transmitted to the first receiving reflection lens (114) is β3, and α3+β3=45°.

9. The optical module transceiver according to claim 2, characterized in that: The optical component (1) further comprises a second isolation filter (1111), a third isolation filter (1112), and a first isolation filter (1110); The second optical signal is reflected by the second receiving reflection lens (115) and then input into the second isolation filter (1111), and then filtered by the second isolation filter (1111) and then input into the second receiving unit (221); The third optical signal is reflected by the third receiving reflection lens (116) and then input into the third isolation filter (1112), and then filtered by the third isolation filter (1112) and then input into the third receiving unit (231); The first optical signal is reflected by the first receiving reflection lens (114) and then input into the first isolation filter (1110), and then filtered by the first isolation filter (1110) and then input into the first receiving unit (211).

10. The optical module transceiver according to claim 9, characterized in that: The optical assembly (1) further comprises a second receiving and converging lens (118), a third receiving and converging lens (119) and a first receiving and converging lens (117); The second optical signal is filtered by the second isolation filter (1111) and then transmitted to the second receiving convergence lens (118), and then input into the second receiving unit (221) after passing through the second receiving convergence lens (118); The third optical signal is filtered by the third isolation filter (1112) and then transmitted to the third receiving convergence lens (119), and then input into the third receiving unit (231) after passing through the third receiving convergence lens (119); Therefore, the first optical signal is filtered by the first isolation filter (1110) and then transmitted to the first receiving convergence lens (117), and then input into the first receiving unit (211) after passing through the first receiving convergence lens (117).

Images