Optical module receiving device and optical module

Abstract

The present application discloses an optical module receiving device and an optical module. The optical module receiving device comprises: a photoelectric converter, used for converting an optical signal into an electrical signal; a transimpedance amplifier, electrically connected to the photoelectric converter; a first signal amplifier, electrically connected to the transimpedance amplifier; and a second signal amplifier, electrically connected to the transimpedance amplifier. The transimpedance amplifier is used for amplifying the electrical signal obtained by converting by the photoelectric converter and outputting the amplified electrical signal to the first signal amplifier or the second signal amplifier on the basis of a rate selection signal.

Description

Optical module receiving device and optical module

[0001] Cross-references

[0002] This application claims priority to a Chinese patent application filed with the Patent Office of China on January 10, 2024, with application number 202410042729.9 and invention name “Optical module receiving device and optical module”. The entire contents of the application are incorporated by reference into this application. Technical Field

[0003] The present application relates to the field of communication technology, and in particular to an optical module receiving device and an optical module. Background Art

[0004] Currently, optical access networks based on TDM-PON (Technical Data Management-Passive Optical Network) technology are rapidly developing. 10G PON (10 Gigabit Passive Optical Network) has begun large-scale deployment, gradually replacing GPON (Gigabit-Capable PON). Due to the increasing demand for access bandwidth from home users and government and enterprise users, 50G TDM PON, a 50Gbit / s passive optical network based on time-division multiplexing, has become the evolutionary direction of 10G PON.

[0005] However, in the related art, the optical module receiving device of the OLT (optical line terminal) is difficult to support the time-division receiving requirements of five different uplink rates: 1.25G, 10G, 12.5G, 25G and 50G. Summary of the Invention

[0006] The main purpose of this application is to provide an optical module receiving device and an optical module.

[0007] To achieve the above-mentioned purpose, the optical module receiving device proposed in the present application includes: a photoelectric converter for converting an optical signal into an electrical signal; a transimpedance amplifier electrically connected to the photoelectric converter; a first signal amplifier electrically connected to the transimpedance amplifier; a second signal amplifier electrically connected to the transimpedance amplifier; the transimpedance amplifier is used to amplify the electrical signal converted by the photoelectric converter, and output the amplified electrical signal to the first signal amplifier or the second signal amplifier according to a rate selection signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] FIG1 is a schematic diagram of a system structure of an embodiment of the present application;

[0009] FIG2 is a schematic structural diagram of the optical module receiving device of the present application;

[0010] FIG3 is a schematic structural diagram of an embodiment of a transimpedance amplifier of the present application;

[0011] FIG4 is a schematic structural diagram of another embodiment of the transimpedance amplifier of the present application;

[0012] FIG5 is a schematic structural diagram of an embodiment of an optical module receiving device of the present application;

[0013] FIG6 is a schematic structural diagram of another embodiment of the optical module receiving device of the present application;

[0014] FIG7 is a schematic structural diagram of another embodiment of the optical module receiving device of the present application;

[0015] FIG8 is a schematic structural diagram of another embodiment of the optical module receiving device of the present application.

[0016] Description of Figure Numbers:

[0017] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0019] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0020] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0021] Currently, optical access networks based on TDM-PON technology are rapidly developing. 10G PON (10 Gigabit Passive Optical Network) has begun large-scale deployment, gradually replacing GPON (Gigabit Passive Optical Network). Due to the increasing demand for access bandwidth from home users and government and enterprise users, 50G TDM PON, a 50Gbit / s passive optical network based on time division multiplexing, has become the evolutionary direction of 10G PON.

[0022] Optical distribution networks (ODNs) have a large number of existing 10GE PON and EPON users. Therefore, in the actual deployment of 50G PON, the PON system must be capable of coexisting with 10GE PON, EPON, and 50G PON. This can be achieved through wavelength division coexistence or time division coexistence. Considering that the upstream wavelengths of 10GE PON and EPON systems are either unnarrowed (1260-1360nm) or narrowed (1290-1330nm), the 1260-1360nm upstream wavelength of the unnarrowed terminals conflicts with the 50G-PON upstream wavelength. Therefore, when 10GE PON, EPON, and 50G PON coexist, it is more reasonable for the upstream OLT (optical line terminal) to adopt time division coexistence of 10GE PON, EPON, and 50G PON.

[0023] In 50G PON systems, the ITU-T standard G.hsp.pmd currently defines three upstream rates: 12.4416Gbps, 24.8832Gbps, and 49.7664Gbps. 10GE PON and EPON have two upstream rates: 10.3125Gbps and 1.25Gbps. Therefore, if 10GE PON, EPON, and 50G PON are to adopt a time-division coexistence solution, the OLT time-division receive module must be capable of receiving five different upstream rates. In related technologies, OLT time-division receive modules are primarily used in 10GE PON and EPON coexistence scenarios, receiving 10G and 1.25G rates and not supporting 1.25G, 10G, 12.5G, 25G, and 50G upstream rates.

[0024] In 10GE PON OLT time-division receiver modules, 10G and 1.25G signals share the same TIA (trans-impedance amplifier) ​​and 10G LA (limiting amplifier), often in conjunction with a rate selection signal to select the rate. Continuing to use this shared TIA and LA architecture to receive a wide range of rates from 1.25G to 50G, as well as multiple rate levels, presents significant challenges in terms of the operating bandwidth, gain range, and linearity of the TIA and LA electronic chips, making it difficult to meet the design requirements for signal reception across all five rate levels. Furthermore, increasing the rate selection levels of the LA and TIA components increases the complexity of the receiver package pinout and rate control signals. Consequently, in related technologies, optical module receivers (OLT time-division receiver modules) struggle to support the five different uplink rates of 1.25G, 10G, 12.5G, 25G, and 50G.

[0025] Based on the problems existing in the above-mentioned related technologies, the present application provides an optical module receiving device, including: a photoelectric converter, a transimpedance amplifier, a first signal amplifier and a second signal amplifier, wherein the transimpedance amplifier is used to amplify the electrical signal converted by the photoelectric converter, and output the amplified electrical signal to the first signal amplifier or the second signal amplifier according to the rate selection signal; the first signal amplifier is used to amplify the medium and low rate signals sent by the transimpedance amplifier; the second signal amplifier is used to amplify the high rate signal sent by the transimpedance amplifier. By adding a second signal amplifier to the optical module receiving device, the first signal amplifier is used to support the requirements of 10GE PON and EPON uplink medium and low rates (1.25G, 10G), and the second signal amplifier is used to support the requirements of 50G PON uplink high rate (12.5G, 25G and 50G), so that the optical module receiving device can support the requirements of multiple different uplink rates.

[0026] The present application provides an optical module receiving device.

[0027] Referring to Figures 1 to 4, Figure 1 is a schematic system structure diagram of an embodiment of the present application; Figure 2 is a schematic structure diagram of the optical module receiving device of the present application; Figure 3 is a schematic structure diagram of an embodiment of the transimpedance amplifier of the present application; and Figure 4 is a schematic structure diagram of another embodiment of the transimpedance amplifier of the present application.

[0028] As shown in Figure 1, the multi-rate PON system corresponding to OLT 100 includes 10GE PON, EPON, and 50G PON. The 50G PON supports 12.5G, 25G, and 50G uplink speeds, while the 10GE PON supports 10G and 1.25G uplink speeds. The EPON supports 1.25G uplink speeds. In the upstream direction, the upstream time-division multiplexed optical signal passes through the optical splitter 140 and reaches the OLT 100. After arriving at the OLT 100, it passes through the wavelength combiner / demultiplexer (WM) 130 and enters the optical module receiving device (Rx) 110. The optical module receiving device 110 includes a photoelectric converter 111, a transimpedance amplifier 112, a first signal amplifier 113 that supports 10G / 1.25G rates, and a second signal amplifier 114 that supports the three upstream rates of 50G PON. The five upstream rate signals of 50G PON, 10GE PON, and EPON share one photoelectric converter 111 and one transimpedance amplifier 112. The upstream 10G and 1.25G signals of 10GE PON and EPON share one first signal amplifier 113. The upstream 50G, 25G, and 12.5G signals of 50G PON share one second signal amplifier 114. The output signals of the first signal amplifier 113 and the second signal amplifier 114 are transmitted to the DSP / MAC unit 120 of the OLT 100, wherein the DSP / MAC unit 120 can be an external processing unit that is communicatively linked to the optical module receiving device 110, or the MAC unit is an external processing unit that is communicatively linked to the optical module receiving device 110, and the optical module receiving device 110 is provided with a DSP unit.

[0029] In the embodiment of the present application, as shown in FIG. 1 and FIG. 2 , the optical module receiving device 110 includes a photoelectric converter 111 , a transimpedance amplifier 112 , a first signal amplifier 113 , and a second signal amplifier 114 .

[0030] The photoelectric converter 111 is used to convert an optical signal into an electrical signal. Specifically, the photoelectric converter 111 converts an uplink time-division multiplexed optical signal into a time-division multiplexed current signal. The photoelectric converter 111 may be a PIN photodiode or an APD avalanche photodiode.

[0031] The transimpedance amplifier 112 is electrically connected to the photoelectric converter 111. The first signal amplifier 113 is electrically connected to the transimpedance amplifier 112; the second signal amplifier 114 is electrically connected to the transimpedance amplifier 112; wherein the first signal amplifier 113 is a limiting amplifier (LA), and the second signal amplifier 114 is a limiting amplifier LA or a linear amplifier (LA).

[0032] The transimpedance amplifier 112 is used to amplify the electrical signal converted by the photoelectric converter 111 and output the amplified electrical signal to the first signal amplifier 113 or the second signal amplifier 114 according to the rate selection signal. That is, the transimpedance amplifier is used to amplify five rate-level signals, including 50G, 25G, 12.5G, 10G, and 1.25G rate-level signals. The first signal amplifier 113 is used to amplify the medium and low rate-level signals sent by the transimpedance amplifier 112. Specifically, the first signal amplifier 113 is used to amplify the 10G and / or 1.25G rate-level signals of 10GE PON and EPON sent by the transimpedance amplifier. The first signal amplifier 113 amplifies the medium and low rate-level signals sent by the transimpedance amplifier 112 based on time division multiplexing. The second signal amplifier 114 is used to amplify the high-speed level signal sent by the transimpedance amplifier 112. Specifically, the second signal amplifier 114 is used to amplify the 50G, 25G and / or 12.5G rate level signals of the 50G PON sent by the transimpedance amplifier. The second signal amplifier 114 amplifies the high-speed level signal sent by the transimpedance amplifier 112 based on time division multiplexing.

[0033] Among them, the medium and low speed level signals are 10G and / or 1.25G speed level signals, and the high speed level signals are 50G, 25G and / or 12.5G speed level signals.

[0034] In one possible implementation, the first signal amplifier 113 includes a 10G limiting amplifier and a 1.25G limiting amplifier; the transimpedance amplifier 112 is used to output the amplified 10G electrical signal to the 10G limiting amplifier according to the rate selection signal, and the 10G limiting amplifier amplifies the 10G electrical signal sent by the transimpedance amplifier 112, or the transimpedance amplifier 112 is used to output the amplified 1.25G electrical signal to the 1.25G limiting amplifier according to the rate selection signal, and the 1.25G limiting amplifier amplifies the 1.25G electrical signal sent by the transimpedance amplifier 112, so as to achieve 1.25G and 10G medium and low rate level signals being amplified by a common transimpedance amplifier 112.

[0035] In one possible implementation, the second signal amplifier 114 includes a 50G limiting / linear amplifier, a 25G limiting / linear amplifier, and / or a 12.5G limiting / linear amplifier. The transimpedance amplifier 112 is used to output the amplified 50G electrical signal to the 50G limiting / linear amplifier according to the rate selection signal, and the 50G limiting / linear amplifier amplifies the 50G electrical signal sent by the transimpedance amplifier 112. The transimpedance amplifier 112 is used to output the amplified 25G electrical signal to the 25G limiting / linear amplifier according to the rate selection signal, and the 25G limiting / linear amplifier amplifies the 25G electrical signal sent by the transimpedance amplifier 112, and / or, the transimpedance amplifier 112 is used to output the amplified 12.5G electrical signal to the 12.5G limiting / linear amplifier according to the rate selection signal, and the 12.5G limiting / linear amplifier amplifies the 12.5G electrical signal sent by the transimpedance amplifier 112, so as to achieve amplification of high-speed level signals of 12.5G, 25G, and 50G using a common transimpedance amplifier 112.

[0036] In another possible implementation, as shown in FIG3 , the transimpedance amplifier 112 includes a core transimpedance amplifier (TIA CORE) 1121 and a signal selection unit 1122 .

[0037] The core transimpedance amplifier 1121 is configured with transimpedance parameters corresponding to 50G rate grade signals. 1.25G, 10G, 12.5G, 25G and 50G rate grade signals are all amplified according to the transimpedance parameters corresponding to the 50G rate grade signals.

[0038] The signal selection unit 1122 is configured as a transmission channel corresponding to the rate selection signal, and the transmission channel includes a transmission channel between the first signal amplifier 113 and a transmission channel between the first signal amplifier 114, so as to configure different transmission channels for the signal selection unit 1122 according to different rate selection signals, so that the signal selection unit 1122 matches one or more of 1.25G, 10G, 12.5G, 25G and 50G rate grade signals.

[0039] In another possible implementation, as shown in FIG4 , the transimpedance amplifier 112 includes a core transimpedance amplifier 1121 , a noise filtering unit 1123 , and a signal selecting unit 1122 , wherein the noise filtering unit 1123 is not necessary.

[0040] The core transimpedance amplifier 1121 is configured with a transimpedance parameter corresponding to the rate selection signal to set different transimpedance parameters according to different rate selection signals, so that the transimpedance parameters match one or more of the 1.25G, 10G, 12.5G, 25G and 50G rate grade signals.

[0041] The noise filtering unit 1123 is located between the core transimpedance amplifier 1121 and the signal selection unit 1122. The noise filtering unit 1123 is configured to have a filtering bandwidth corresponding to the rate selection signal, so as to configure different filtering bandwidths for the noise filtering unit 1123 according to different rate selection signals, so that the filtering bandwidth matches one or more of the 1.25G, 10G, 12.5G, 25G and 50G rate grade signals.

[0042] The signal selection unit 1122 is configured as a transmission channel corresponding to the rate selection signal, and the transmission channel includes a transmission channel between the first signal amplifier 113 and a transmission channel between the first signal amplifier 114, so as to configure different transmission channels for the signal selection unit 1122 according to different rate selection signals, so that the signal selection unit 1122 matches one or more of 1.25G, 10G, 12.5G, 25G and 50G rate grade signals.

[0043] The optical module receiving device 110 of the embodiment of the present application is provided with a first signal amplifier 113 and a second signal amplifier 114. The first signal amplifier 113 is used to support the requirements of low and medium uplink rates (1.25G, 10G), and the second signal amplifier 114 is used to support the requirements of high uplink rates (12.5G, 25G and 50G). As a result, the optical module receiving device 110 can support the requirements of multiple different uplink rates.

[0044] In one embodiment, as shown in Figures 4 and 5 , the rate selection signal comprises five types of rate selection signals. The five types of rate selection signals are provided by the DSP and / or MAC unit. The DSP and / or MAC unit generates the five types of rate selection signals based on the rate level corresponding to the time-division optical signal received by the optical-to-electrical converter 111, and controls the transimpedance amplifier 112 using the five types of rate selection signals.

[0045] The core transimpedance amplifier 1121 is configured with transimpedance parameters corresponding to 50G, 25G, 12.5G, 10G, or 1.25G rate levels based on five rate selection signals, that is, the transimpedance parameters of the core transimpedance amplifier 1121 match one of the 50G, 25G, 12.5G, 10G, or 1.25G rate levels, and the matched rate level is the rate level corresponding to the optical signal received by the optoelectronic converter 111, thereby achieving precise matching of the transimpedance parameters and the rate level corresponding to the optical signal.

[0046] The noise filtering unit 1123 is configured to have a filtering bandwidth corresponding to a rate level of 50G, 25G, 12.5G, 10G, or 1.25G based on five rate selection signals; that is, the filtering bandwidth of the noise filtering unit 1123 matches one of the rate levels of 50G, 25G, 12.5G, 10G, or 1.25G, and the matched filtering bandwidth corresponds one-to-one to the rate level corresponding to the optical signal received by the optoelectronic converter 111, thereby achieving precise matching of the filtering bandwidth with the rate level corresponding to the optical signal.

[0047] The signal selection unit 1122 is configured to output the amplified 10G / 1.25G electrical signals of 10GE PON and EPON to the first signal amplifier 113 or output the amplified 50G / 25G / 12.5G electrical signals of 50G PON to the second signal amplifier 114 based on the five rate selection signals.

[0048] In this embodiment, the signal selection unit 1122 is configured to select transmission channels corresponding to five rate selection signals, and the transmission channels are the transmission channels between the first signal amplifier 113 and the second signal amplifier 114 . If the rate level corresponding to the optical signal received by the optoelectronic converter 111 is 10G / 1.25G rate level, the transmission channel is the transmission channel between the first signal amplifier 113, and the signal selection unit 1122 outputs the amplified 10G / 1.25G electrical signal of 10GE PON and EPON to the first signal amplifier 113. If the rate level corresponding to the optical signal received by the optoelectronic converter 111 is 50G / 25G / 12.5G rate level, the transmission channel is the transmission channel between the second signal amplifier 114, and the signal selection unit 1122 outputs the amplified 50G / 25G / 12.5G electrical signal of 50G PON to the second signal amplifier 114, so that the amplified electrical signal can be accurately output to the first signal amplifier 113 or the second signal amplifier 114 through the signal selection unit 1122, so that the optical module receiving device 110 can support the requirements of multiple different uplink rates.

[0049] In one possible implementation, the second signal amplifier 114 is configured to have a bandwidth corresponding to a 50G rate level, amplifies and outputs a 50G / 25G / 12.5G electrical signal to the DSP or MAC unit.

[0050] The first signal amplifier 113 is configured to amplify the 10G / 1.25G electrical signal based on the 10G / 1.25G rate selection signal and branch and output the 10G electrical signal and the 1.25G electrical signal to the MAC unit.

[0051] Among them, the 10G / 1.25G rate selection signals are provided by the DSP and / or MAC unit. The DSP and / or MAC unit generates the 10G / 1.25G rate selection signals according to the rate level corresponding to the optical signal received by the optoelectronic converter 111, and controls the first signal amplifier 113 through the 10G / 1.25G rate selection signals.

[0052] In this embodiment, if the rate level corresponding to the optical signal received by the optoelectronic converter 111 is 50G / 25G / 12.5G rate level, the transmission channel is the transmission channel between the second signal amplifier 114, and the signal selection unit 1122 outputs the amplified 50G / 25G / 12.5G electrical signal of the 50G PON to the second signal amplifier 114. The second signal amplifier 114 is configured to the bandwidth corresponding to the 50G rate level, amplifies and outputs a 50G / 25G / 12.5G electrical signal to the DSP or MAC unit.

[0053] If the rate level corresponding to the optical signal received by the optoelectronic converter 111 is 10G / 1.25G rate level, the transmission channel is the transmission channel between the first signal amplifier 113, and the signal selection unit 1122 outputs the amplified 10GE PON and EPON 10G / 1.25G electrical signals to the first signal amplifier 113. The first signal amplifier 113 is configured to amplify the 10G / 1.25G electrical signals based on the two rate selection signals and branch out the 10G electrical signals and 1.25G electrical signals to the MAC unit. Specifically, if the rate level corresponding to the optical signal received by the optoelectronic converter 111 is a 10G rate level, the first signal amplifier 113 transmits the output 10G electrical signal to the 10G receiving pin of the MAC unit based on the 10G / 1.25G rate selection signal; if the rate level corresponding to the optical signal received by the optoelectronic converter 111 is a 1.25G rate level, the first signal amplifier 113 transmits the output 1.25G electrical signal to the 1.25G receiving pin of the MAC unit based on the 10G / 1.25G rate selection signal.

[0054] In one embodiment, as shown in Figures 4 and 6 , the rate selection signals are two-level selection signals: 50G / 25G / 12.5G and 10G / 1.25G. The 50G / 25G / 12.5G and 10G / 1.25G selection signals are provided by the DSP and / or MAC unit. The DSP and / or MAC unit generates the 50G / 25G / 12.5G and 10G / 1.25G selection signals based on the rate level corresponding to the optical signal received by the optical-to-electrical converter 111, and controls the transimpedance amplifier 112 using the 50G / 25G / 12.5G and 10G / 1.25G selection signals.

[0055] The core transimpedance amplifier 1121 is configured with transimpedance parameters corresponding to the 50G rate level or the 10G rate level based on the two selection signals of 50G / 25G / 12.5G and 10G / 1.25G. Specifically, if the two-speed selection signals of 50G / 25G / 12.5G and 10G / 1.25G are 50G / 25G / 12.5G rate level selection signals, the transimpedance parameters of the core transimpedance amplifier 1121 are configured as the transimpedance parameters corresponding to the 50G rate level, so that the transimpedance parameters match the optical signals corresponding to the 50G / 25G / 12.5G rate levels; if the two-speed selection signals of 50G / 25G / 12.5G and 10G / 1.25G are 10G / 1.25G rate level selection signals, the transimpedance parameters of the core transimpedance amplifier 1121 are configured as the transimpedance parameters corresponding to the 10G rate level, so that the transimpedance parameters match the optical signals corresponding to the 10G / 1.25G rate levels.

[0056] The noise filter unit 1123 is configured with a filtering bandwidth corresponding to the 50G rate grade or the 10G rate grade based on the two selection signals of 50G / 25G / 12.5G and 10G / 1.25G. Specifically, if the two selection signals of 50G / 25G / 12.5G and 10G / 1.25G are 50G / 25G / 12.5G rate grade selection signals, the filtering bandwidth of the noise filter unit 1123 is configured with the filtering bandwidth corresponding to the 50G rate grade, so that the filtering bandwidth matches the optical signal corresponding to the 50G / 25G / 12.5G rate grade. If the two selection signals of 50G / 25G / 12.5G and 10G / 1.25G are 10G / 1.25G rate grade selection signals, the filtering bandwidth of the noise filter unit 1123 is configured with the filtering bandwidth corresponding to the 10G rate grade, so that the filtering bandwidth matches the optical signal corresponding to the 10G / 1.25G rate grade.

[0057] The signal selection unit 1122 is configured based on the two selection signals of 50G / 25G / 12.5G and 10G / 1.25G to output the amplified 10G / 1.25G electrical signals of 10GE PON and EPON to the first signal amplifier 113 through the transmission channel between the first signal amplifier 113, or to output the amplified 50G / 25G / 12.5G electrical signals of 50G PON to the second signal amplifier 114 through the transmission channel between the second signal amplifier 114.

[0058] In this embodiment, the transmission channel of the signal selection unit 1122 is configured based on the transmission channel between the first signal amplifier 113 or the transmission channel between the second signal amplifier 114 based on the two-speed selection signal configuration of 50G / 25G / 12.5G and 10G / 1.25G. Specifically, if the two-speed selection signals of 50G / 25G / 12.5G and 10G / 1.25G are 10G / 1.25G rate level selection signals, the transmission channel is the transmission channel between the first signal amplifier 113, and the signal selection unit 1122 outputs the amplified 10G / 1.25G electrical signal of the 10GE PON and EPON to the first signal amplifier 113 through the corresponding transmission channel; if the two-speed selection signals of 50G / 25G / 12.5G and 10G / 1.25G are 50G / 25G / 12.5G rate level selection signals, the transmission channel is the transmission channel between the second signal amplifier 114, and the signal selection unit 1122 outputs the amplified 50G The 50G / 25G / 12.5G electrical signal of the PON is output to the second signal amplifier 114 through the corresponding transmission channel, so that the amplified electrical signal is accurately output to the first signal amplifier 113 or the second signal amplifier 114 through the signal selection unit 1122, so that the optical module receiving device 110 can support the requirements of multiple different uplink rates.

[0059] In one possible implementation, the second signal amplifier 114 is configured with a filtering bandwidth corresponding to the 50G rate level, the 25G rate level, or the 12.5G rate level based on the 50G, 25G, and 12.5G rate selection signals, and amplifies and outputs a 50G / 25G / 12.5G electrical signal to the DSP or MAC unit.

[0060] The first signal amplifier 113 is configured with a filtering bandwidth corresponding to the 10G rate grade or the 1.25G rate grade based on the 10G and 1.25G rate selection signals, amplifies the 10G and 1.25G electrical signals and branches and outputs the 10G electrical signal and the 1.25G electrical signal to the MAC unit.

[0061] Among them, the three rate selection signals of 50G, 25G, and 12.5G and the two rate selection signals of 10G and 1.25G are all provided by the DSP and / or MAC unit. The DSP and / or MAC unit generates the three rate selection signals of 50G, 25G, and 12.5G or the two rate selection signals of 10G and 1.25G according to the rate level corresponding to the optical signal received by the optoelectronic converter 111, and controls the first signal amplifier 113 through the two rate selection signals of 10G and 1.25G, or controls the second signal amplifier 114 through the three rate selection signals of 50G, 25G, and 12.5G.

[0062] In this embodiment, if the rate level corresponding to the optical signal received by the optoelectronic converter 111 is 50G / 25G / 12.5G rate level, the transmission channel is the transmission channel between the second signal amplifier 114, and the signal selection unit 1122 outputs the amplified 50G / 25G / 12.5G electrical signal of the 50G PON to the second signal amplifier 114. The second signal amplifier 114 is configured with a filtering bandwidth corresponding to the 50G rate level, the 25G rate level or the 12.5G rate level based on the three rate selection signals of 50G, 25G and 12.5G, and amplifies and outputs a 50G / 25G / 12.5G electrical signal to the DSP or MAC unit. Specifically, if the optical signal received by the optoelectronic converter 111 corresponds to a 50G rate level, the second signal amplifier 114 is configured with a filtering bandwidth corresponding to the 50G rate level based on the three rate selection signals of 50G, 25G, and 12.5G. If the optical signal received by the optoelectronic converter 111 corresponds to a 25G rate level, the second signal amplifier 114 is configured with a filtering bandwidth corresponding to the 25G rate level based on the three rate selection signals of 50G, 25G, and 12.5G. If the optical signal received by the optoelectronic converter 111 corresponds to a 12.5G rate level, the second signal amplifier 114 is configured with a filtering bandwidth corresponding to the 12.5G rate level based on the three rate selection signals of 50G, 25G, and 12.5G. Consequently, the second signal amplifier 114 can accurately amplify each high-rate level signal and accurately filter each high-rate level signal using the corresponding filtering bandwidth.

[0063] If the rate level corresponding to the optical signal received by the optoelectronic converter 111 is 10G / 1.25G rate level, the transmission channel is the transmission channel between the first signal amplifier 113, and the signal selection unit 1122 outputs the amplified 10G / 1.25G electrical signal of the 10GE PON and EPON to the first signal amplifier 113. The first signal amplifier 113 is configured with the filtering bandwidth corresponding to the 10G rate level or the 1.25G rate level based on the two rate selection signals of 10G and 1.25G to amplify the 10G / 1.25G electrical signal and branch the output of the 10G electrical signal and the 1.25G electrical signal to the MAC unit. Specifically, if the rate level corresponding to the optical signal received by the photoelectric converter 111 is 10G, the first signal amplifier 113 is configured with a filter bandwidth corresponding to the 10G rate level based on the 10G and 1.25G rate selection signals, and transmits the output 10G electrical signal to the 10G receive pin of the MAC unit. If the rate level corresponding to the optical signal received by the photoelectric converter 111 is 1.25G, the first signal amplifier 113 is configured with a filter bandwidth corresponding to the 1.25G rate level based on the 10G and 1.25G rate selection signals, and transmits the output 1.25G electrical signal to the 1.25G receive pin of the MAC unit. Consequently, the first signal amplifier 113 can accurately amplify various low and medium rate level signals and accurately filter each low and medium rate level signal using the corresponding filter bandwidth.

[0064] In one embodiment, as shown in Figures 4 and 7, the rate selection signal is a four-speed rate selection signal of 50G / 25G, 12.5G, 10G, and 1.25G; the four-speed rate selection signal of 50G / 25G, 12.5G, 10G, and 1.25G is provided by the DSP and / or MAC unit, and the DSP and / or MAC unit generates the four-speed rate selection signal of 50G / 25G, 12.5G, 10G, and 1.25G according to the rate level corresponding to the optical signal received by the optoelectronic converter 111, and controls the transimpedance amplifier 112 through the four-speed rate selection signal of 50G / 25G, 12.5G, 10G, and 1.25G.

[0065] The core transimpedance amplifier 1121 is configured based on the four-speed rate selection signals of 50G / 25G, 12.5G, 10G, and 1.25G. The 50G / 25G speed is configured with a transimpedance parameter corresponding to the 25G speed level, the 12.5G speed and 10G speed are configured with a transimpedance parameter corresponding to the 10G speed level, and the 1.25G speed is configured with a transimpedance parameter corresponding to the 1.25G speed level. Specifically, if the four-speed rate selection signals of 50G / 25G, 12.5G, 10G, and 1.25G are 50G / 25G selection signals, the transimpedance parameters of the core transimpedance amplifier 1121 are configured with a transimpedance parameter corresponding to the 25G speed level, so that the transimpedance parameters correspond to the 50G and 25G speed levels. The core transimpedance amplifier 1121 is configured to match the corresponding optical signal; if the four-speed rate selection signal of 50G / 25G, 12.5G, 10G, and 1.25G is 12.5G or 10G selection signal, the transimpedance parameter of the core transimpedance amplifier 1121 is configured to the transimpedance parameter corresponding to the 10G rate level, so that the transimpedance parameter matches the optical signal corresponding to the 12.5G and 10G rate levels; if the four-speed rate selection signal of 50G / 25G, 12.5G, 10G, and 1.25G is 1.25G selection signal, the transimpedance parameter of the core transimpedance amplifier 1121 is configured to the transimpedance parameter corresponding to the 1.25G rate level, so that the transimpedance parameter matches the optical signal corresponding to the 1.25G rate level.

[0066] The noise filtering unit 1123 is configured based on the four-speed rate selection signals of 50G / 25G, 12.5G, 10G, and 1.25G, as follows: the 50G / 25G speed is configured with a filtering bandwidth corresponding to the 25G speed level, the 12.5G speed and 10G speeds are configured with a filtering bandwidth corresponding to the 10G speed level, and the 1.25G speed is configured with a filtering bandwidth corresponding to the 1.25G speed level; specifically, if the four-speed rate selection signals of 50G / 25G, 12.5G, 10G, and 1.25G are 50G / 25G selection signals, the filtering bandwidth of the noise filtering unit 1123 is configured as the filtering bandwidth corresponding to the 25G speed level, so that the filtering bandwidth is consistent with the 50G and 25G speed levels. The filtering bandwidth of the noise filtering unit 1123 is configured as the filtering bandwidth corresponding to the 10G rate level, so that the filtering bandwidth matches the optical signals corresponding to the 12.5G and 10G rate levels; if the four-speed rate selection signal of 50G / 25G, 12.5G, 10G, and 1.25G is the 1.25G selection signal, the filtering bandwidth of the noise filtering unit 1123 is configured as the filtering bandwidth corresponding to the 1.25G rate level, so that the filtering bandwidth matches the optical signal corresponding to the 1.25G rate level.

[0067] The signal selection unit 1122 is configured based on the four-speed rate selection signals of 50G / 25G, 12.5G, 10G, and 1.25G to output the amplified 10G / 1.25G electrical signals of 10GE PON and EPON to the first signal amplifier through the transmission channel between the first signal amplifier, or to output the amplified 50G / 25G / 12.5G electrical signals of 50G PON to the second signal amplifier through the transmission channel between the second signal amplifier.

[0068] In this embodiment, the transmission channel of the signal selection unit 1122 is configured as a transmission channel between the first signal amplifier 113 or the transmission channel between the second signal amplifier 114 based on the four-speed rate selection signals of 50G / 25G, 12.5G, 10G, and 1.25G. Specifically, if the four-speed rate selection signals of 50G / 25G, 12.5G, 10G, and 1.25G are 10G selection signals, the transmission channel is the transmission channel between the first signal amplifier 113, and the signal selection unit 1122 outputs the amplified 10G electrical signal of the 10GE PON and EPON to the first signal amplifier 113 through the corresponding transmission channel; if the four-speed rate selection signals of 50G / 25G, 12.5G, 10G, and 1.25G are 1.25G selection signals, the transmission channel is the transmission channel between the first signal amplifier 113, and the signal selection unit 1122 outputs the amplified 10GE The 1.25G electrical signals of PON and EPON are output to the first signal amplifier 113 through the corresponding transmission channel; if the four-speed rate selection signal of 50G / 25G, 12.5G, 10G, and 1.25G is the 50G / 25G selection signal, the transmission channel is the transmission channel between the second signal amplifier 114, and the signal selection unit 1122 outputs the amplified 50G and 25G electrical signals of 50GPON to the second signal amplifier 114 through the corresponding transmission channel; if the four-speed rate selection signal of 50G / 25G, 12.5G, 10G, and 1.25G is the 12.5G selection signal, the transmission channel is the transmission channel between the second signal amplifier 114, and the signal selection unit 1122 outputs the amplified 12.5G electrical signal of 50G PON to the second signal amplifier 114 through the corresponding transmission channel, so that the optical module receiving device 110 can support the requirements of multiple different uplink rates.

[0069] In one possible implementation, the second signal amplifier 114 is configured to have a bandwidth corresponding to a 50G rate level, amplifies and outputs a 50G / 25G / 12.5G electrical signal to the DSP or MAC unit.

[0070] The first signal amplifier 113 is configured to amplify the 10G / 1.25G electrical signal based on the 10G / 1.25G rate selection signal and branch and output the 10G electrical signal and the 1.25G electrical signal to the MAC unit.

[0071] Among them, the 10G / 1.25G rate selection signals are provided by the DSP and / or MAC unit. The DSP and / or MAC unit generates the 10G / 1.25G rate selection signals according to the rate level corresponding to the optical signal received by the optoelectronic converter 111, and controls the first signal amplifier 113 through the 10G / 1.25G rate selection signals.

[0072] In this embodiment, if the rate level corresponding to the optical signal received by the optoelectronic converter 111 is 50G / 25G / 12.5G rate level, the transmission channel is the transmission channel between the second signal amplifier 114, and the signal selection unit 1122 outputs the 50G / 25G / 12.5G electrical signal of the 50G PON amplified by 112 to the second signal amplifier 114. The second signal amplifier 114 is configured to the bandwidth corresponding to the 50G rate level, amplifies and outputs a 50G / 25G / 12.5G electrical signal to the DSP or MAC unit.

[0073] If the rate level corresponding to the optical signal received by the optoelectronic converter 111 is 10G / 1.25G rate level, the transmission channel is the transmission channel between the first signal amplifier 113, and the signal selection unit 1122 outputs the amplified 10GE PON and EPON 10G / 1.25G electrical signals to the first signal amplifier 113. The first signal amplifier 113 is configured to amplify the 10G / 1.25G electrical signals based on the two rate selection signals and branch out the 10G electrical signals and 1.25G electrical signals to the MAC unit. Specifically, if the rate level corresponding to the optical signal received by the optoelectronic converter 111 is a 10G rate level, the first signal amplifier 113 transmits the output 10G electrical signal to the 10G receiving pin of the MAC unit based on the 10G / 1.25G rate selection signal; if the rate level corresponding to the optical signal received by the optoelectronic converter 111 is a 1.25G rate level, the first signal amplifier 113 transmits the output 1.25G electrical signal to the 1.25G receiving pin of the MAC unit based on the 10G / 1.25G rate selection signal.

[0074] In one embodiment, as shown in Figures 3 and 8, the rate selection signal is a first / second signal amplifier selection signal; the first / second signal amplifier selection signal is provided by the DSP and / or MAC unit, and the DSP and / or MAC unit generates the first / second signal amplifier selection signal according to the rate level corresponding to the optical signal received by the optoelectronic converter 111, and controls the transimpedance amplifier 112 through the first / second signal amplifier selection signal.

[0075] The core transimpedance amplifier 1121 operates at a transimpedance parameter corresponding to a 50G rate level.

[0076] The signal selection unit 1122 is configured based on the first / second signal amplifier selection signal to output the amplified 10G / 1.25G electrical signal of 10GE PON and EPON to the first signal amplifier 113 through the transmission channel between the first signal amplifier 113, or to output the amplified 50G / 25G / 12.5G electrical signal of 50G PON to the second signal amplifier 114 through the transmission channel between the second signal amplifier 114.

[0077] In this embodiment, the transmission channel of the signal selection unit 1122 is configured as the transmission channel between the first signal amplifier 113 or the transmission channel between the second signal amplifier 114 based on the first / second signal amplifier selection signal. Specifically, if the first / second signal amplifier selection signal is the first signal amplifier 113 selection signal, the transmission channel is the transmission channel between the first signal amplifier 113, and the signal selection unit 1122 outputs the amplified 10GE PON, EPON 10G / 1.25G electrical signal to the first signal amplifier 113 through the corresponding transmission channel. If the first / second signal amplifier selection signal is the second signal amplifier 114 selection signal, the transmission channel is the transmission channel between the second signal amplifier 114, and the signal selection unit 1122 outputs the amplified 50G / 25G / 12.5G electrical signal of the 50G PON to the second signal amplifier 114 through the corresponding transmission channel; so that the amplified electrical signal is accurately output to the first signal amplifier 113 or the second signal amplifier 114 through the signal selection unit 1122, so that the optical module receiving device 110 can support the requirements of multiple different uplink rates.

[0078] In one possible implementation, the second signal amplifier 114 is configured to have a filtering bandwidth corresponding to the 50G rate level, the 25G rate level, or the 12.5G rate level based on the 50G, 25G, and 12.5G rate selection signals, and amplifies and outputs a 50G / 25G / 12.5G electrical signal to the DSP or MAC unit.

[0079] The first signal amplifier 113 is configured to have a filtering bandwidth corresponding to the 10G rate level or the 1.25G rate level based on the 10G and 1.25G rate selection signals, amplifies the 10G and 1.25G electrical signals and branches and outputs the 10G electrical signal and the 1.25G electrical signal to the MAC unit.

[0080] Among them, the three rate selection signals of 50G, 25G, and 12.5G and the two rate selection signals of 10G and 1.25G are all provided by the DSP and / or MAC unit. The DSP and / or MAC unit generates the three rate selection signals of 50G, 25G, and 12.5G or the two rate selection signals of 10G and 1.25G according to the rate level corresponding to the optical signal received by the optoelectronic converter 111, and controls the first signal amplifier 113 through the two rate selection signals of 10G and 1.25G, or controls the second signal amplifier 114 through the three rate selection signals of 50G, 25G, and 12.5G.

[0081] In this embodiment, if the rate level corresponding to the optical signal received by the optoelectronic converter 111 is 50G / 25G / 12.5G rate level, the transmission channel is the transmission channel between the second signal amplifier 114, and the signal selection unit 1122 outputs the amplified 50G / 25G / 12.5G electrical signal of the 50G PON to the second signal amplifier 114. The second signal amplifier 114 is configured with a filtering bandwidth corresponding to the 50G rate level, the 25G rate level or the 12.5G rate level based on the three rate selection signals of 50G, 25G and 12.5G, and amplifies and outputs a 50G / 25G / 12.5G electrical signal to the DSP or MAC unit. Specifically, if the optical signal received by the optoelectronic converter 111 corresponds to a 50G rate level, the second signal amplifier 114 is configured with a filtering bandwidth corresponding to the 50G rate level based on the three rate selection signals of 50G, 25G, and 12.5G. If the optical signal received by the optoelectronic converter 111 corresponds to a 25G rate level, the second signal amplifier 114 is configured with a filtering bandwidth corresponding to the 25G rate level based on the three rate selection signals of 50G, 25G, and 12.5G. If the optical signal received by the optoelectronic converter 111 corresponds to a 12.5G rate level, the second signal amplifier 114 is configured with a filtering bandwidth corresponding to the 12.5G rate level based on the three rate selection signals of 50G, 25G, and 12.5G. Consequently, the second signal amplifier 114 can accurately amplify each high-rate level signal and accurately filter each high-rate level signal using the corresponding filtering bandwidth.

[0082] If the rate level corresponding to the optical signal received by the optoelectronic converter 111 is 10G / 1.25G rate level, the transmission channel is the transmission channel between the first signal amplifier 113, and the signal selection unit 1122 outputs the amplified 10G / 1.25G electrical signal of the 10GE PON and EPON to the first signal amplifier 113. The first signal amplifier 113 is configured with the filtering bandwidth corresponding to the 10G rate level or the 1.25G rate level based on the two rate selection signals of 10G and 1.25G to amplify the 10G / 1.25G electrical signal and branch the output of the 10G electrical signal and the 1.25G electrical signal to the MAC unit. Specifically, if the rate level corresponding to the optical signal received by the photoelectric converter 111 is 10G, the first signal amplifier 113 is configured with a filter bandwidth corresponding to the 10G rate level based on the 10G and 1.25G rate selection signals, and transmits the output 10G electrical signal to the 10G receive pin of the MAC unit. If the rate level corresponding to the optical signal received by the photoelectric converter 111 is 1.25G, the first signal amplifier 113 is configured with a filter bandwidth corresponding to the 1.25G rate level based on the 10G and 1.25G rate selection signals, and transmits the output 1.25G electrical signal to the 1.25G receive pin of the MAC unit. Consequently, the first signal amplifier 113 can accurately amplify various low and medium rate level signals and accurately filter each low and medium rate level signal using the corresponding filter bandwidth.

[0083] The present application also proposes an optical module, which includes an optical module receiving device. The specific structure of the optical module receiving device refers to the above-mentioned embodiment. Since the present optical module adopts all the technical solutions of all the above-mentioned embodiments, it also has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0084] It should be noted that the technical solutions of the various embodiments of the present application can be combined with each other, but this must be based on the fact that they can be implemented by technical personnel in this field. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0085] The above description is only a preferred embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structural transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An optical module receiving device, wherein, Comprising: An optical - electrical converter, configured to convert an optical signal into an electrical signal; A trans - impedance amplifier, electrically connected to the optical - electrical converter; A first signal amplifier, electrically connected to the trans - impedance amplifier; A second signal amplifier, electrically connected to the trans - impedance amplifier; The trans - impedance amplifier is configured to amplify the electrical signal converted by the optical - electrical converter and output the amplified electrical signal to the first signal amplifier or the second signal amplifier according to a rate - selection signal.

2. The optical module receiving device according to claim 1, wherein, The trans - impedance amplifier is configured to amplify five rate - level signals.

3. The optical module receiving device according to claim 1, wherein The first signal amplifier is configured to amplify the 10GE PON, 10G and 1.25G rate - level signals of EPON sent by the trans - impedance amplifier.

4. The optical module receiving device according to claim 1, wherein, The second signal amplifier is configured to amplify the 50G, 25G and / or 12.5G rate - level signals of 50G PON sent by the trans - impedance amplifier.

5. The optical module receiving device according to claim 1, wherein, The trans - impedance amplifier includes a core trans - impedance amplifier and a signal - selection unit; The core trans - impedance amplifier is configured with trans - impedance parameters corresponding to the rate - selection signal; The signal - selection unit is configured with a transmission channel corresponding to the rate - selection signal, and the transmission channel includes a transmission channel between the signal - selection unit and the first signal amplifier and a transmission channel between the signal - selection unit and the second signal amplifier.

6. The optical module receiving device according to claim 5, wherein, The trans - impedance amplifier further includes a noise - filtering unit, which is located between the core trans - impedance amplifier and the signal - selection unit, and the noise - filtering unit is configured with a filtering bandwidth corresponding to the rate - selection signal.

7. The optical module receiving device according to claim 6, wherein, The rate - selection signal is five rate - selection signals; The core trans - impedance amplifier is configured with trans - impedance parameters corresponding to the 50G, 25G, 12.5G, 10G, or 1.25G rate level based on the five rate - selection signals; The noise - filtering unit is configured with a filtering bandwidth corresponding to the 50G, 25G, 12.5G, 10G, or 1.25G rate level based on the five rate - selection signals; Based on the five rate - selection signals, the signal - selection unit is configured to output the amplified 10GE PON, 10G / 1.25G electrical signals of EPON to the first signal amplifier, or output the amplified 50G / 25G / 12.5G electrical signals of 50G PON to the second signal amplifier.

8. The optical - module receiving device according to claim 7, wherein The second signal amplifier is configured with a filtering bandwidth corresponding to the 50G rate level, amplifies and outputs a path of 50G / 25G / 12.5G electrical signals to a DSP or a MAC unit; Based on the 10G / 1.25G two - rate - selection signals, the first signal amplifier is configured to amplify the 10G / 1.25G electrical signals and split - output the 10G electrical signals and the 1.25G electrical signals to the MAC unit.

9. The optical module receiving device according to claim 6, wherein, The rate - selection signal is two - gear selection signals of 50G / 25G / 12.5G and 10G / 1.25G; Based on the 50G / 25G / 12.5G, 10G / 1.25G two - gear selection signals, the core trans - impedance amplifier is configured with trans - impedance parameters corresponding to the 50G rate level or the 10G rate level; The noise filtering unit is configured with a filtering bandwidth corresponding to the 50G rate level or the 10G rate level based on the 50G / 25G / 12.5G, 10G / 1.25G two - level selection signals; The signal selection unit is configured based on the 50G / 25G / 12.5G, 10G / 1.25G two - level selection signals to output the amplified 10G / 1.25G electrical signals of 10GE PON and EPON to the first signal amplifier through the transmission channel between it and the first signal amplifier, or output the amplified 50G / 25G / 12.5G electrical signals of 50G PON to the second signal amplifier through the transmission channel between it and the second signal amplifier.

10. The optical module receiving device according to claim 9, wherein, The second signal amplifier is configured with a filtering bandwidth corresponding to the 50G rate level, 25G rate level or 12.5G rate level based on the 50G, 25G, 12.5G three - level rate selection signals, amplifies and outputs a path of 50G / 25G / 12.5G electrical signals to the DSP or MAC unit; The first signal amplifier is configured with a filtering bandwidth corresponding to the 10G rate level or 1.25G rate level based on the 10G, 1.25G two - level rate selection signals, amplifies the 10G and 1.25G electrical signals and outputs the 10G electrical signal and the 1.25G electrical signal to the MAC unit in a split - path manner.

11. The optical module receiving device according to claim 6, wherein, The rate selection signal is a four - level selection signal of 50G / 25G, 12.5G, 10G, 1.25G; The core trans - impedance amplifier is configured based on the 50G / 25G, 12.5G, 10G, 1.25G four - level selection signals, with the trans - impedance parameter corresponding to the 25G rate level configured for the 50G / 25G level, the trans - impedance parameter corresponding to the 10G rate level configured for the 12.5G level and the 10G level, and the trans - impedance parameter corresponding to the 1.25G rate level configured for the 1.25G level; The noise filtering unit is configured based on the 50G / 25G, 12.5G, 10G, 1.25G four - level selection signals, with the filtering bandwidth corresponding to the 25G rate level configured for the 50G / 25G level, the filtering bandwidth corresponding to the 10G rate level configured for the 12.5G level and the 10G level, and the filtering bandwidth corresponding to the 1.25G rate level configured for the 1.25G level; The signal selection unit is configured based on the 50G / 25G, 12.5G, 10G, 1.25G four - level selection signals to output the amplified 10G / 1.25G electrical signals of 10GE PON and EPON to the first signal amplifier through the transmission channel between it and the first signal amplifier, or output the amplified 50G / 25G / 12.5G electrical signals of 50G PON to the second signal amplifier through the transmission channel between it and the second signal amplifier.

12. The optical module receiving device according to claim 11, wherein, The second signal amplifier is configured with a bandwidth corresponding to the 50G rate level, amplifies and outputs a 50G / 25G / 12.5G electrical signal to the DSP or MAC unit; The first signal amplifier is configured based on two rate selection signals of 10G / 1.25G to amplify the 10G / 1.25G electrical signal and split - output the 10G electrical signal and the 1.25G electrical signal to the MAC unit.

13. The optical module receiving device according to claim 5, wherein, The rate selection signal is the first / second signal amplifier selection signal; The core trans - impedance amplifier operates with trans - impedance parameters corresponding to the 50G rate level, The signal selection unit is configured based on the first / second signal amplifier selection signal to output the amplified 10G / 1.25G electrical signals of 10GE PON and EPON to the first signal amplifier through the transmission channel between it and the first signal amplifier, or output the amplified 50G / 25G / 12.5G electrical signals of 50G PON to the second signal amplifier through the transmission channel between it and the second signal amplifier.

14. The optical module receiving device according to claim 13, wherein, The second signal amplifier is configured with a filtering bandwidth corresponding to the 50G rate level, 25G rate level, or 12.5G rate level based on three rate selection signals of 50G, 25G, and 12.5G, amplifies and outputs a 50G / 25G / 12.5G electrical signal to the DSP or MAC unit; The first signal amplifier is configured with a filtering bandwidth corresponding to the 10G rate level or 1.25G rate level based on two rate selection signals of 10G and 1.25G, amplifies the 10G and 1.25G electrical signals and split - outputs the 10G electrical signal and the 1.25G electrical signal to the MAC unit.

15. The optical module receiving device according to claim 1, wherein, The first signal amplifier is a limiting amplifier, and the second signal amplifier is a limiting amplifier or a linear amplifier.

16. The optical module receiving device according to any one of claims 1 to 15, wherein, The first signal amplifier includes a 10G limiting amplifier and a 1.25G limiting amplifier; The trans - impedance amplifier is used to output the amplified 10G electrical signal to the 10G limiting amplifier or the amplified 1.25G electrical signal to the 1.25G limiting amplifier according to the rate selection signal.

17. The optical module receiving device according to any one of claims 1 to 15, wherein, The second signal amplifier includes a 50G limiting / linear amplifier, a 25G limiting / linear amplifier, and / or a 12.5G limiting / linear amplifier; The trans - impedance amplifier is used to output the amplified 50G electrical signal to the 50G limiting / linear amplifier, the amplified 25G electrical signal to the 25G limiting / linear amplifier, and / or the amplified 12.5G electrical signal to the 12.5G limiting / linear amplifier according to the rate selection signal.

18. The optical module receiving device according to any one of claims 1 to 15, wherein, The photoelectric converter includes a PIN photodiode or an APD avalanche photodiode.

19. An optical module, wherein, Including the optical module receiving device according to any one of claims 1 to 18.

Images