Optical module receiving device and optical module

Abstract

The invention discloses an optical module receiving device and an optical module, and the device comprises a photoelectric converter which is used for converting an optical signal into an electric signal; the trans-impedance amplifier is electrically connected with the photoelectric converter; the first signal amplifier is electrically connected with the transimpedance amplifier; the second signal amplifier is electrically connected with the trans-impedance amplifier; and the trans-impedance amplifier is used for amplifying the electric signal converted by the photoelectric converter and outputting the amplified electric signal to the first signal amplifier or the second signal amplifier according to the rate selection signal. According to the technical scheme, the first signal amplifier is adopted to support the uplink medium-low rate requirement, and the second signal amplifier is adopted to support the uplink high rate requirement, so that the optical module receiving device can support multiple uplink different rate requirements.

Description

Technical Field

[0001] The present application relates to the field of communication technologies, and particularly relates to an optical module receiving device and an optical module. Background Art

[0002] Currently, optical access networks based on TDM-PON (Technical Data Management - Passive Optical Network) technology are developing rapidly. 10G PON (10 Gigabit Passive Optical Network) has begun large-scale deployment and is gradually replacing GPON (Gigabit Passive Optical Network) networks. Due to the increasing need for access bandwidth from home users and enterprise and government users, the time-division multiplexing-based 50Gbit / s passive optical network 50G TDM PON has become the evolution direction of 10G PON.

[0003] However, in related technologies, 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 of 1.25G, 10G, 12.5G, 25G, and 50G. Summary of the Invention

[0004] The main objective of the present application is to provide an optical module receiving device and an optical module, aiming to solve the technical problem that the optical module receiving device is difficult to support the requirements of multiple different uplink rates.

[0005] To achieve the above objective, the optical module receiving device proposed in the present application includes:

[0006] A photoelectric converter for converting an optical signal into an electrical signal;

[0007] A transimpedance amplifier electrically connected to the photoelectric converter;

[0008] A first signal amplifier electrically connected to the transimpedance amplifier;

[0009] A second signal amplifier electrically connected to the transimpedance amplifier;

[0010] 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.

[0011] The optical module receiving device according to the embodiment of the present application supports the requirements of uplink medium and low rates (1.25G, 10G) by setting a first signal amplifier and supports the requirements of uplink high rates (12.5G, 25G, and 50G) by setting a second signal amplifier, so that the optical module receiving device can support the requirements of multiple different uplink rates. Description of the Drawings

[0012] Figure 1 It is a schematic system structure diagram of an embodiment of the present application;

[0013] Figure 2 It is a schematic structure diagram of the optical module receiving device of the present application;

[0014] Figure 3 It is a schematic structure diagram of an embodiment of the transimpedance amplifier of the present application;

[0015] Figure 4 It is a schematic structure diagram of another embodiment of the transimpedance amplifier of the present application;

[0016] Figure 5 It is a schematic structure diagram of an embodiment of the optical module receiving device of the present application;

[0017] Figure 6 It is a schematic structure diagram of another embodiment of the optical module receiving device of the present application;

[0018] Figure 7 It is a schematic structure diagram of another embodiment of the optical module receiving device of the present application;

[0019] Figure 8 It is a schematic structure diagram of yet another embodiment of the optical module receiving device of the present application.

[0020] Explanation of the reference numerals in the drawings:

[0021] Label Name Label Name 100 OLT 110 Optical module receiving device 120 DSP / MAC unit 130 Wavelength division multiplexer / demultiplexer 140 Optical splitter 111 Opto - electrical converter 112 Transimpedance amplifier 113 First signal amplifier 114 Second signal amplifier 1121 Core transimpedance amplifier 1122 Signal selection unit 1123 Noise filtering unit

[0022] The realization, functional features, and advantages of the object of the present application will be further described with reference to the embodiments and the drawings. Detailed Embodiments

[0023] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0024] It should be noted that all the directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the attached drawings). If the specific posture changes, the directional indications will also change accordingly.

[0025] In addition, the descriptions involving "first", "second", etc. in this application are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0026] Currently, the optical access network based on TDM-PON technology has developed rapidly. 10G PON (10 Gigabit Passive Optical Network) has started large-scale deployment and is gradually replacing the GPON (Gigabit Passive Optical Network) network. Due to the increasing demand for access bandwidth from home users and enterprise and government users, the time-division multiplexing-based 50Gbit / s passive optical network 50G TDM PON has become the evolution direction of 10G PON.

[0027] The ODN (optical distribution network) has a large number of existing 10GE PON and EPON users. Therefore, during the actual deployment of 50G PON, the PON system should have the coexistence ability of the three generations of 10GE PON, EPON, and 50G PON, which can be specifically achieved by means of wavelength-division coexistence or time-division coexistence. Considering that there are two types of uplink wavelengths in the 10GE PON and EPON systems, namely non-narrowed (1260 - 1360nm) and narrowed (1290 - 1330nm), and the 1260 - 1360nm uplink wavelength of the non-narrowed terminal conflicts with the 50G-PON uplink wavelength. Therefore, when the three generations of 10GE PON, EPON, and 50G PON coexist, it is more reasonable for the uplink OLT (optical line terminal) to receive using time-division coexistence of 10GE PON, EPON, and 50G PON.

[0028] In the 50G PON system, the ITU-T standard G.hsp.pmd currently defines three uplink rates: 12.4416 Gbps, 24.8832 Gbps, and 49.7664 Gbps. The 10GE PON and EPON have two uplink rates: 10.3125 Gbps and 1.25 Gbps. Therefore, if the 10GE PON, EPON, and 50G PON are to adopt a time-division coexistence scheme, the OLT time-division receiving module should have the ability to receive five different uplink rates. In the related technologies, the OLT time-division receiving module is mainly applied in the 10GE PON and EPON coexistence scenarios, receiving two rate levels of 10G and 1.25G, and cannot support five different uplink rates of 1.25G, 10G, 12.5G, 25G, and 50G.

[0029] In the 10GE PON OLT time-division receiving module, the 10G and 1.25G signals share the same TIA (trans-impedance amplifier) and the same 10G LA (limited amplifier), and usually cooperate with the rate selection signal to select the rate. If the architecture of sharing one TIA and one LA is continued, receiving a large span of rate ranges from 1.25G to 50G and multiple rate levels poses great difficulties and challenges to the working bandwidth range, gain range, linearity, etc. of the TIA and LA electrical chips, and it is difficult to meet the design requirements of the receiving indicators for five rate levels of signals. At the same time, it is also necessary to increase the rate selection levels of the LA and TIA devices, increasing the complexity of the receiver package pins and rate control signals. Furthermore, in the related technologies, the optical module receiving device (OLT time-division receiving module) is difficult to support the requirements of five different uplink rates of 1.25G, 10G, 12.5G, 25G, and 50G.

[0030] Based on the problems existing in the above related technologies, the present application provides an optical module receiving device, including: an optoelectronic converter, a trans-impedance amplifier, a first signal amplifier, and a second signal amplifier. Among them, the trans-impedance amplifier is used to amplify the electrical signal converted by the optoelectronic 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 level signals sent by the trans-impedance amplifier; the second signal amplifier is used to amplify the high rate level signals sent by the trans-impedance amplifier. By adding a second signal amplifier to the optical module receiving device, the first signal amplifier is used to support the requirements of the medium and low rates (1.25G, 10G) of the 10GE PON and EPON uplinks, and the second signal amplifier is used to support the requirements of the high rates (12.5G, 25G, and 50G) of the 50G PON uplink, so that the optical module receiving device can support the requirements of multiple different uplink rates.

[0031] This application proposes an optical module receiving device.

[0032] Referring to Figures 1 to 4 , Figure 1 is a schematic system structure diagram of an embodiment of this application; Figure 2 is a schematic structure diagram of the optical module receiving device of this application; Figure 3 is a schematic structure diagram of an embodiment of the transimpedance amplifier of this application; Figure 4 is a schematic structure diagram of another embodiment of the transimpedance amplifier of this application.

[0033] As Figure 1 shown, in the multi-rate PON system corresponding to OLT100, 10GE PON, EPON, and 50G PON coexist simultaneously. Among them, the 50G PON upstream supports three rate levels of 12.5G, 25G, and 50G, the 10GE PON upstream supports two rate levels of 10G and 1.25G, and the EPON upstream supports the 1.25G rate level. In the upstream direction, the upstream time-division multiplexed optical signal reaches OLT100 after passing through the optical splitter 140, and after reaching OLT100, it enters the optical module receiving device (Rx) 110 through the wavelength division multiplexer (WM) 130. The optical module receiving device 110 includes a photoelectric converter 111, a transimpedance amplifier 112, a first signal amplifier 113 supporting the 10G / 1.25G rate, and a second signal amplifier 114 supporting the 50G PON upstream 3 rates. The upstream 5 rate signals of 50G PON, 10GE PON, and EPON share a photoelectric converter 111 and a transimpedance amplifier 112. The upstream 10G and 1.25G signals of 10GE PON and EPON share a first signal amplifier 113, and the upstream 50G, 25G, and 12.5G signals of 50G PON share a 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 OLT100. Among them, the DSP / MAC unit 120 can be an external processing unit communicatively linked to the optical module receiving device 110, or the MAC unit is an external processing unit communicatively linked to the optical module receiving device 110, and the optical module receiving device 110 is provided with a DSP unit.

[0034] In the embodiment of this application, as Figure 1 and Figure 2 shown, 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.

[0035] The optical-electric converter 111 is used to convert an optical signal into an electric signal. Specifically, the optical-electric converter 111 converts an upstream time-division multiplexing optical signal into a time-division multiplexing current signal. The optical-electric converter 111 can adopt a PIN photodiode or an APD avalanche photodiode.

[0036] The transimpedance amplifier 112 is electrically connected to the optical-electric 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, limited amplifier), and the second signal amplifier 114 is a limiting amplifier LA or a linear amplifier (LA, linear amplifier).

[0037] The transimpedance amplifier 112 is used to amplify the electric signal converted by the optical-electric converter 111, and output the amplified electric 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, and the five rate-level signals include 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 the time-division multiplexing method. The second signal amplifier 114 is used to amplify the high rate-level signals 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 50G PON sent by the transimpedance amplifier. The second signal amplifier 114 amplifies the high rate-level signals sent by the transimpedance amplifier 112 based on the time-division multiplexing method.

[0038] Wherein, the medium and low rate-level signals are 10G and / or 1.25G rate-level signals, and the high rate-level signals are 50G, 25G, and / or 12.5G rate-level signals.

[0039] In a possible implementation manner, the first signal amplifier 113 includes a 10G limiting amplifier and a 1.25G limiting amplifier; the transimpedance amplifier 112 is configured 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 transmitted by the transimpedance amplifier 112. Alternatively, the transimpedance amplifier 112 is configured 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 transmitted by the transimpedance amplifier 112, so as to implement the amplification of the medium and low rate level signals of 1.25G and 10G using the common transimpedance amplifier 112.

[0040] In a possible implementation manner, 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 configured 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 transmitted by the transimpedance amplifier 112. The transimpedance amplifier 112 is configured 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 transmitted by the transimpedance amplifier 112. And / or, the transimpedance amplifier 112 is configured 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 transmitted by the transimpedance amplifier 112, so as to implement the amplification of the high rate level signals of 12.5G, 25G, and 50G using the common transimpedance amplifier 112.

[0041] In yet another possible implementation manner, as Figure 3 shown, the transimpedance amplifier 112 includes a core transimpedance amplifier (TIACORE) 1121 and a signal selection unit 1122.

[0042] The core transimpedance amplifier 1121 is configured with the transimpedance parameters corresponding to the 50G rate level signal, and the 1.25G, 10G, 12.5G, 25G, and 50G rate level signals are all amplified according to the transimpedance parameters corresponding to the 50G rate level signal.

[0043] The signal selection unit 1122 is configured to select a transmission channel corresponding to the rate selection signal. The transmission channels include the transmission channel between the first signal amplifier 113 and the transmission channel between the second signal amplifier 114, so as to configure different transmission channels for the signal selection unit 1122 according to different rate selection signals, enabling the signal selection unit 1122 to match one or more of the signal rate levels of 1.25G, 10G, 12.5G, 25G, and 50G.

[0044] In another possible implementation, as Figure 4 shown, the transimpedance amplifier 112 includes a core transimpedance amplifier 1121, a noise filtering unit 1123, and a signal selection unit 1122, where the noise filtering unit 1123 is not essential.

[0045] The core transimpedance amplifier 1121 is configured with a transimpedance parameter corresponding to the rate selection signal, so as to set different transimpedance parameters according to different rate selection signals, enabling the transimpedance parameter to match one or more of the signal rate levels of 1.25G, 10G, 12.5G, 25G, and 50G.

[0046] 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 with 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, enabling the filtering bandwidth to match one or more of the signal rate levels of 1.25G, 10G, 12.5G, 25G, and 50G.

[0047] The signal selection unit 1122 is configured to select a transmission channel corresponding to the rate selection signal. The transmission channels include the transmission channel between the first signal amplifier 113 and the transmission channel between the second signal amplifier 114, so as to configure different transmission channels for the signal selection unit 1122 according to different rate selection signals, enabling the signal selection unit 1122 to match one or more of the signal rate levels of 1.25G, 10G, 12.5G, 25G, and 50G.

[0048] In the optical module receiving device 110 according to the embodiment of the present application, by providing the first signal amplifier 113 and the second signal amplifier 114, the first signal amplifier 113 is used to support the requirements of the uplink medium and low rates (1.25G, 10G), and the second signal amplifier 114 is used to support the requirements of the uplink high rates (12.5G, 25G, and 50G), enabling the optical module receiving device 110 to support the requirements of multiple different uplink rates.

[0049] Further, as Figure 4 and Figure 5As shown, the rate selection signals are five rate selection signals. The five rate selection signals are provided by the DSP and / or MAC unit. The DSP and / or MAC unit generates the five rate selection signals according to the rate level corresponding to the time-division optical signal received by the optical-electric converter 111, and controls the transimpedance amplifier 112 through the five rate selection signals.

[0050] The core transimpedance amplifier 1121 is configured with transimpedance parameters corresponding to the rate levels of 50G, 25G, 12.5G, 10G, or 1.25G based on the five rate selection signals, that is, the transimpedance parameters of the core transimpedance amplifier 1121 match one of the rate levels of 50G, 25G, 12.5G, 10G, or 1.25G. The matching rate level is the rate level corresponding to the optical signal received by the optical-electric converter 111, thereby achieving an accurate match between the transimpedance parameters and the rate level corresponding to the optical signal.

[0051] The noise filtering unit 1123 is configured with a filtering bandwidth corresponding to the rate levels of 50G, 25G, 12.5G, 10G, or 1.25G based on the 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. The matching filtering bandwidth corresponds one-to-one to the rate level corresponding to the optical signal received by the optical-electric converter 111, thereby achieving an accurate match between the filtering bandwidth and the rate level corresponding to the optical signal.

[0052] The signal selection unit 1122 is configured based on the five rate selection signals 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.

[0053] In this embodiment, the signal selection unit 1122 is configured for the transmission channels corresponding to five rate selection signals. The transmission channels are the transmission channels between the first signal amplifier 113 or the second signal amplifier 114. If the rate level corresponding to the optical signal received by the optical-electric converter 111 is the 10G / 1.25G rate level, the transmission channel is the transmission channel between the first signal amplifier 113. The signal selection unit 1122 outputs the amplified 10G / 1.25G electrical signals of 10GE PON and EPON to the first signal amplifier 113. If the rate level corresponding to the optical signal received by the optical-electric converter 111 is the 50G / 25G / 12.5G rate level, the transmission channel is the transmission channel between the second signal amplifier 114. The signal selection unit 1122 outputs the amplified 50G / 25G / 12.5G electrical signals of 50G PON to the second signal amplifier 114, so as to accurately output the amplified electrical signals 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.

[0054] In a possible implementation manner, the second signal amplifier 114 is configured for the bandwidth corresponding to the 50G rate level, amplifies and outputs a 50G / 25G / 12.5G electrical signal to the DSP or MAC unit.

[0055] Based on the 10G / 1.25G two rate selection signals, the first signal amplifier 113 is configured to amplify the 10G / 1.25G electrical signals and split and output the 10G electrical signal and the 1.25G electrical signal to the MAC unit.

[0056] Among them, the 10G / 1.25G two rate selection signals are provided by the DSP and / or MAC unit. The DSP and / or MAC unit generates the 10G / 1.25G two rate selection signals according to the rate level corresponding to the optical signal received by the optical-electric converter 111, and controls the first signal amplifier 113 through the 10G / 1.25G two rate selection signals.

[0057] In this embodiment, if the rate level corresponding to the optical signal received by the optical-electric converter 111 is the 50G / 25G / 12.5G rate level, the transmission channel is the transmission channel between the second signal amplifier 114. The signal selection unit 1122 outputs the amplified 50G / 25G / 12.5G electrical signals of 50G PON to the second signal amplifier 114. The second signal amplifier 114 is configured for the bandwidth corresponding to the 50G rate level, amplifies and outputs a 50G / 25G / 12.5G electrical signal to the DSP or MAC unit.

[0058] If the rate level corresponding to the optical signal received by the optical-electric converter 111 is the 10G / 1.25G rate level, the transmission channel is the transmission channel between the first signal amplifier 113. The signal selection unit 1122 outputs the amplified 10G / 1.25G electrical signals of 10GE PON and EPON to the first signal amplifier 113. The first signal amplifier 113 is configured to amplify the 10G / 1.25G electrical signals and split-output the 10G electrical signals and 1.25G electrical signals to the MAC unit based on two rate selection signals. Specifically, if the rate level corresponding to the optical signal received by the optical-electric converter 111 is the 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 two 10G / 1.25G rate selection signals. If the rate level corresponding to the optical signal received by the optical-electric converter 111 is the 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 two 10G / 1.25G rate selection signals.

[0059] Further, as Figure 4 and Figure 6 shown, the rate selection signals are two-stage selection signals of 50G / 25G / 12.5G and 10G / 1.25G. The two-stage selection signals of 50G / 25G / 12.5G and 10G / 1.25G are provided by the DSP and / or the MAC unit. The DSP and / or the MAC unit generate the two-stage selection signals of 50G / 25G / 12.5G and 10G / 1.25G according to the rate level corresponding to the optical signal received by the optical-electric converter 111, and control the transimpedance amplifier 112 through the two-stage selection signals of 50G / 25G / 12.5G and 10G / 1.25G.

[0060] The core transimpedance amplifier 1121 is configured with the transimpedance parameters corresponding to the 50G rate level or the 10G rate level based on the two-stage selection signals of 50G / 25G / 12.5G and 10G / 1.25G. Specifically, if the two-stage selection signals of 50G / 25G / 12.5G and 10G / 1.25G are the 50G / 25G / 12.5G rate level selection signals, the transimpedance parameters of the core transimpedance amplifier 1121 are configured with the transimpedance parameters corresponding to the 50G rate level to match the transimpedance parameters with the optical signal corresponding to the 50G / 25G / 12.5G rate level. If the two-stage selection signals of 50G / 25G / 12.5G and 10G / 1.25G are the 10G / 1.25G rate level selection signals, the transimpedance parameters of the core transimpedance amplifier 1121 are configured with the transimpedance parameters corresponding to the 10G rate level to match the transimpedance parameters with the optical signal corresponding to the 10G / 1.25G rate level.

[0061] The noise filtering unit 1123 is configured with a filtering bandwidth corresponding to the 50G rate level or the 10G rate level based on the 50G / 25G / 12.5G and 10G / 1.25G two - level selection signals. Specifically, if the 50G / 25G / 12.5G and 10G / 1.25G two - level selection signal is the 50G / 25G / 12.5G rate - level selection signal, the filtering bandwidth of the noise filtering unit 1123 is configured with the filtering bandwidth corresponding to the 50G rate level to match the optical signal corresponding to the 50G / 25G / 12.5G rate level; if the 50G / 25G / 12.5G and 10G / 1.25G two - level selection signal is the 10G / 1.25G rate - level selection signal, the filtering bandwidth of the noise filtering unit 1123 is configured with the filtering bandwidth corresponding to the 10G rate level to match the optical signal corresponding to the 10G / 1.25G rate level.

[0062] Based on the 50G / 25G / 12.5G and 10G / 1.25G two - level selection signals, 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 through the transmission channel between it and the first signal amplifier 113, or output the amplified 50G / 25G / 12.5G electrical signals of 50G PON to the second signal amplifier 114 through the transmission channel between it and the second signal amplifier 114.

[0063] In this embodiment, the transmission channel of the signal selection unit 1122 is configured with the transmission channel between it and the first signal amplifier 113 or the transmission channel between it and the second signal amplifier 114 based on the 50G / 25G / 12.5G and 10G / 1.25G two - level selection signals. Specifically, if the 50G / 25G / 12.5G and 10G / 1.25G two - level selection signal is the 10G / 1.25G rate - level selection signal, the transmission channel is the transmission channel between it and the first signal amplifier 113, and the signal selection unit 1122 outputs the amplified 10G / 1.25G electrical signals of 10GE PON and EPON to the first signal amplifier 113 through the corresponding transmission channel; if the 50G / 25G / 12.5G and 10G / 1.25G two - level selection signal is the 50G / 25G / 12.5G rate - level selection signal, the transmission channel is the transmission channel between it and the second signal amplifier 114, and the signal selection unit 1122 outputs the amplified 50G / 25G / 12.5G electrical signals of 50G PON to the second signal amplifier 114 through the corresponding transmission channel, so as to accurately output the amplified electrical signal to the first signal amplifier 113 or the second signal amplifier 114 through the signal selection unit 1122, enabling the optical module receiving device 110 to support the requirements of multiple different uplink rates.

[0064] In a possible implementation, the second signal amplifier 114 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, and 12.5G rate selection signals, amplifies and outputs a 50G / 25G / 12.5G electrical signal to the DSP or MAC unit;

[0065] The first signal amplifier 113 is configured with a filtering bandwidth corresponding to the 10G rate level or 1.25G rate level based on the 10G and 1.25G rate selection signals, amplifies the 10G and 1.25G electrical signals and outputs the 10G electrical signal and the 1.25G electrical signal in a split manner to the MAC unit.

[0066] Among them, the 50G, 25G, and 12.5G rate selection signals and the 10G and 1.25G rate selection signals are all provided by the DSP and / or MAC unit. The DSP and / or MAC unit generates the 50G, 25G, and 12.5G rate selection signals or the 10G and 1.25G rate selection signals according to the rate level of the optical signal received by the optical-electric converter 111, controls the first signal amplifier 113 through the 10G and 1.25G rate selection signals, or controls the second signal amplifier 114 through the 50G, 25G, and 12.5G rate selection signals.

[0067] In this embodiment, if the rate level corresponding to the optical signal received by the optical-electricity converter 111 is 50G / 25G / 12.5G rate level, the transmission channel is the transmission channel between the second signal amplifier 114. 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, 25G rate level or 12.5G rate level based on the 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. Specifically, if the rate level corresponding to the optical signal received by the optical-electricity converter 111 is 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 rate level corresponding to the optical signal received by the optical-electricity converter 111 is 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 rate level corresponding to the optical signal received by the optical-electricity converter 111 is 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. Furthermore, the accurate amplification of signals of each high rate level can be achieved through the second signal amplifier 114, and the precise filtering of signals of each high rate level can be performed through the corresponding filtering bandwidth.

[0068] If the rate level corresponding to the optical signal received by the optical-electricity converter 111 is the 10G / 1.25G rate level, the transmission channel is the transmission channel between the first signal amplifier 113. The signal selection unit 1122 outputs the amplified 10G / 1.25G electrical signals of 10GE PON and EPON to the first signal amplifier 113. The first signal amplifier 113 is configured with a 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 split-output 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 optical-electricity converter 111 is the 10G rate level, the first signal amplifier 113 is configured with a filtering bandwidth corresponding to the 10G rate level based on the two rate selection signals of 10G and 1.25G, and transmits the output 10G electrical signal to the 10G receiving pin of the MAC unit. If the rate level corresponding to the optical signal received by the optical-electricity converter 111 is the 1.25G rate level, the first signal amplifier 113 is configured with a filtering bandwidth corresponding to the 1.25G rate level based on the two rate selection signals of 10G and 1.25G, and transmits the output 1.25G electrical signal to the 1.25G receiving pin of the MAC unit. Furthermore, the accurate amplification of each medium and low rate level signal can be achieved through the first signal amplifier 113, and each medium and low rate level signal can be accurately filtered through the corresponding filtering bandwidth.

[0069] Furthermore, as Figure 4 and Figure 7 shown, the rate selection signals are four-level rate selection signals of 50G / 25G, 12.5G, 10G, and 1.25G; the four-level rate selection signals of 50G / 25G, 12.5G, 10G, and 1.25G are provided by the DSP and / or the MAC unit. The DSP and / or the MAC unit generate the four-level rate selection signals of 50G / 25G, 12.5G, 10G, and 1.25G according to the rate level corresponding to the optical signal received by the optical-electricity converter 111, and control the transimpedance amplifier 112 through the four-level rate selection signals of 50G / 25G, 12.5G, 10G, and 1.25G.

[0070] The core transimpedance amplifier 1121 is configured based on the 50G / 25G, 12.5G, 10G, and 1.25G four-gear rate selection signals. In the 50G / 25G gear, the transimpedance parameters corresponding to the 25G rate level are configured; in the 12.5G and 10G gears, the transimpedance parameters corresponding to the 10G rate level are configured; in the 1.25G gear, the transimpedance parameters corresponding to the 1.25G rate level are configured. Specifically, if the 50G / 25G, 12.5G, 10G, and 1.25G four-gear rate selection signal is the 50G / 25G selection signal, the transimpedance parameters of the core transimpedance amplifier 1121 are configured as the transimpedance parameters corresponding to the 25G rate level, so that the transimpedance parameters match the optical signals corresponding to the 50G and 25G rate levels. If the 50G / 25G, 12.5G, 10G, and 1.25G four-gear rate selection signal is the 12.5G or 10G selection signal, 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 12.5G and 10G rate levels. If the 50G / 25G, 12.5G, 10G, and 1.25G four-gear rate selection signal is the 1.25G selection signal, the transimpedance parameters of the core transimpedance amplifier 1121 are configured as the transimpedance parameters corresponding to the 1.25G rate level, so that the transimpedance parameters match the optical signals corresponding to the 1.25G rate level.

[0071] The noise filtering unit 1123 is configured based on the 50G / 25G, 12.5G, 10G, and 1.25G four-gear rate selection signals. In the 50G / 25G gear, the filtering bandwidth corresponding to the 25G rate level is configured; in the 12.5G and 10G gears, the filtering bandwidth corresponding to the 10G rate level is configured; in the 1.25G gear, the filtering bandwidth corresponding to the 1.25G rate level is configured. Specifically, if the 50G / 25G, 12.5G, 10G, and 1.25G four-gear rate selection signal is the 50G / 25G selection signal, the filtering bandwidth of the noise filtering unit 1123 is configured as the filtering bandwidth corresponding to the 25G rate level, so that the filtering bandwidth matches the optical signals corresponding to the 50G and 25G rate levels. If the 50G / 25G, 12.5G, 10G, and 1.25G four-gear rate selection signal is the 12.5G or 10G selection signal, 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 50G / 25G, 12.5G, 10G, and 1.25G four-gear rate selection signal 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 signals corresponding to the 1.25G rate level.

[0072] 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 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, based on the four - level rate selection signals of 50G / 25G, 12.5G, 10G, and 1.25G.

[0073] In this embodiment, the transmission channel of the signal selection unit 1122 is configured as the transmission channel between it and the first signal amplifier 113 or the transmission channel between it and the second signal amplifier 114 based on the four - level rate selection signals of 50G / 25G, 12.5G, 10G, and 1.25G. Specifically, if the four - level rate selection signal of 50G / 25G, 12.5G, 10G, and 1.25G is a 10G selection signal, the transmission channel is the transmission channel between it and the first signal amplifier 113, and the signal selection unit 1122 outputs the amplified 10G electrical signals of 10GE PON and EPON to the first signal amplifier 113 through the corresponding transmission channel; if the four - level rate selection signal of 50G / 25G, 12.5G, 10G, and 1.25G is a 1.25G selection signal, the transmission channel is the transmission channel between it and the first signal amplifier 113, and the signal selection unit 1122 outputs the amplified 1.25G electrical signals of 10GE PON and EPON to the first signal amplifier 113 through the corresponding transmission channel; if the four - level rate selection signal of 50G / 25G, 12.5G, 10G, and 1.25G is a 50G / 25G selection signal, the transmission channel is the transmission channel between it and the second signal amplifier 114, and the signal selection unit 1122 outputs the amplified 50G and 25G electrical signals of 50G PON to the second signal amplifier 114 through the corresponding transmission channel; if the four - level rate selection signal of 50G / 25G, 12.5G, 10G, and 1.25G is a 12.5G selection signal, the transmission channel is the transmission channel between it and 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.

[0074] In a possible implementation manner, the second signal amplifier 114 is configured with a bandwidth corresponding to the 50G rate level, and amplifies and outputs a 50G / 25G / 12.5G electrical signal to the DSP or MAC unit.

[0075] The first signal amplifier 113 is configured based on the 10G / 1.25G dual-rate selection signal 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.

[0076] Among them, the 10G / 1.25G dual-rate selection signal is provided by the DSP and / or the MAC unit. The DSP and / or the MAC unit generate the 10G / 1.25G dual-rate selection signal according to the rate level corresponding to the optical signal received by the optical-electric converter 111, and control the first signal amplifier 113 through the 10G / 1.25G dual-rate selection signal.

[0077] In this embodiment, if the rate level corresponding to the optical signal received by the optical-electric converter 111 is the 50G / 25G / 12.5G rate level, the transmission channel is the transmission channel to the second signal amplifier 114. 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 the bandwidth corresponding to the 50G rate level, and amplifies and outputs a 50G / 25G / 12.5G electrical signal to the DSP or the MAC unit.

[0078] If the rate level corresponding to the optical signal received by the optical-electric converter 111 is the 10G / 1.25G rate level, the transmission channel is the transmission channel to the first signal amplifier 113. 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 based on the dual-rate selection signal 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. Specifically, if the rate level corresponding to the optical signal received by the optical-electric converter 111 is the 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 dual-rate selection signal. If the rate level corresponding to the optical signal received by the optical-electric converter 111 is the 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 dual-rate selection signal.

[0079] Further, as Figure 3 and Figure 8As shown, the rate selection signal is the first / second signal amplifier selection signal; the first / second signal amplifier selection signal is provided by the DSP and / or the MAC unit. The DSP and / or the MAC unit generates the first / second signal amplifier selection signal according to the rate level corresponding to the optical signal received by the optical-electric converter 111, and controls the transimpedance amplifier 112 through the first / second signal amplifier selection signal.

[0080] The core transimpedance amplifier 1121 operates at the transimpedance parameters corresponding to the 50G rate level.

[0081] Based on the first / second signal amplifier selection signal, 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 through the transmission channel between the signal selection unit 1122 and the first signal amplifier 113, or output the amplified 50G / 25G / 12.5G electrical signals of 50G PON to the second signal amplifier 114 through the transmission channel between the signal selection unit 1122 and the second signal amplifier 114.

[0082] In this embodiment, the transmission channel of the signal selection unit 1122 is configured as the transmission channel between the signal selection unit 1122 and the first signal amplifier 113 or the transmission channel between the signal selection unit 1122 and 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 signal selection unit 1122 and the first signal amplifier 113, and the signal selection unit 1122 outputs the amplified 10G / 1.25G electrical signals of 10GE PON and EPON 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 signal selection unit 1122 and the second signal amplifier 114, and the signal selection unit 1122 outputs the amplified 50G / 25G / 12.5G electrical signals of 50G PON to the second signal amplifier 114 through the corresponding transmission channel; so as to accurately output the amplified electrical signal 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.

[0083] In a possible implementation manner, based on the three rate selection signals of 50G, 25G, and 12.5G, the second signal amplifier 114 is configured to amplify and output a 50G / 25G / 12.5G electrical signal to the DSP or the MAC unit at the filtering bandwidth corresponding to the 50G rate level, 25G rate level, or 12.5G rate level;

[0084] The first signal amplifier 113 is configured based on the 10G and 1.25G rate selection signals to amplify the 10G and 1.25G electrical signals and split and output the 10G electrical signal and the 1.25G electrical signal to the MAC unit according to the filter bandwidth corresponding to the 10G rate level or the 1.25G rate level.

[0085] 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 the MAC unit. The DSP and / or the MAC unit generate 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 optical-electric converter 111, control the first signal amplifier 113 through the two rate selection signals of 10G and 1.25G, or control the second signal amplifier 114 through the three rate selection signals of 50G, 25G, and 12.5G.

[0086] In this embodiment, if the rate level corresponding to the optical signal received by the optical-electric converter 111 is the 50G / 25G / 12.5G rate level, the transmission channel is the transmission channel between the second signal amplifier 114. 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 based on the three rate selection signals of 50G, 25G, and 12.5G to the filter bandwidth corresponding to the 50G rate level, 25G rate level, or 12.5G rate level, amplifies and outputs a 50G / 25G / 12.5G electrical signal to the DSP or the MAC unit. Specifically, if the rate level corresponding to the optical signal received by the optical-electric converter 111 is the 50G rate level, the second signal amplifier 114 is configured based on the three rate selection signals of 50G, 25G, and 12.5G to the filter bandwidth corresponding to the 50G rate level; if the rate level corresponding to the optical signal received by the optical-electric converter 111 is the 25G rate level, the second signal amplifier 114 is configured based on the three rate selection signals of 50G, 25G, and 12.5G to the filter bandwidth corresponding to the 25G rate level; if the rate level corresponding to the optical signal received by the optical-electric converter 111 is the 12.5G rate level, the second signal amplifier 114 is configured based on the three rate selection signals of 50G, 25G, and 12.5G to the filter bandwidth corresponding to the 12.5G rate level. Furthermore, the accurate amplification of each high-rate level signal can be realized through the second signal amplifier 114, and the precise filtering of each high-rate level signal can be performed through the corresponding filter bandwidth.

[0087] If the rate level corresponding to the optical signal received by the optical-electric converter 111 is the 10G / 1.25G rate level, the transmission channel is the transmission channel between the first signal amplifier 113. The signal selection unit 1122 outputs the amplified 10G / 1.25G electrical signals of 10GE PON and EPON to the first signal amplifier 113. The first signal amplifier 113 is configured with a 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 split-output 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 optical-electric converter 111 is the 10G rate level, the first signal amplifier 113 is configured with a filtering bandwidth corresponding to the 10G rate level based on the two rate selection signals of 10G and 1.25G, and transmits the output 10G electrical signal to the 10G receiving pin of the MAC unit. If the rate level corresponding to the optical signal received by the optical-electric converter 111 is the 1.25G rate level, the first signal amplifier 113 is configured with a filtering bandwidth corresponding to the 1.25G rate level based on the two rate selection signals of 10G and 1.25G, and transmits the output 1.25G electrical signal to the 1.25G receiving pin of the MAC unit. Furthermore, accurate amplification of signals at each medium and low rate level can be achieved through the first signal amplifier 113, and precise filtering of signals at each medium and low rate level can be performed through the corresponding filtering bandwidth.

[0088] The present application also provides an optical module, which includes an optical module receiving device. The specific structure of the optical module receiving device refers to the above embodiments. Since this optical module adopts all the technical solutions of the above embodiments, it also has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated here one by one.

[0089] It should be noted that the technical solutions of the various embodiments of the present application can be combined with each other, but it must be based on the premise that those skilled in the art can implement them. When the combination of technical solutions conflicts with each other or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present application.

[0090] The above are only the preferred embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structural transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied to other related technical fields, shall be included in the patent protection scope of the present application by the same token.

Claims

1. An optical module receiving device, characterized in that, 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 signals of five rate levels.

3. The optical module receiving device according to claim 1, characterized in that, The first signal amplifier is configured to amplify 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, characterized in that, The second signal amplifier is configured to amplify 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, characterized in that 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 transmission channels corresponding to the rate selection signal, and the transmission channels include 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, characterized in that, 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, characterized in that, The rate selection signal is five rate selection signals; The core trans - impedance amplifier is configured with trans - impedance parameters corresponding to 50G, 25G, 12.5G, 10G, or 1.25G rate levels based on the five rate selection signals; The noise filtering unit is configured with a filtering bandwidth corresponding to 50G, 25G, 12.5G, 10G, or 1.25G rate levels based on the five rate selection signals; Based on the five rate selection signals, the signal selection unit is configured to output the amplified 10G / 1.25G electrical signals of 10GE PON and 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 50G / 25G / 12.5G electrical signal to a DSP or MAC unit; Based on two rate selection signals of 10G / 1.25G, the first signal amplifier is configured to amplify 10G / 1.25G electrical signals and split - output 10G electrical signals and 1.25G electrical signals to a 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; The core transimpedance amplifier is configured with transimpedance parameters 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 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 the signal selection unit and the first signal amplifier, or output the amplified 50G / 25G / 12.5G electrical signals of 50GPON to the second signal amplifier through the transmission channel between the signal selection unit 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 the 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 - way.

11. The optical module receiving device according to claim 6, wherein, The rate selection signals are 50G / 25G, 12.5G, 10G, 1.25G four - level selection signals; The core transimpedance amplifier is configured based on the 50G / 25G, 12.5G, 10G, 1.25G four - level selection signals such that the 50G / 25G level is configured with transimpedance parameters corresponding to the 25G rate level, the 12.5G level and the 10G level are configured with transimpedance parameters corresponding to the 10G rate level, and the 1.25G level is configured with transimpedance parameters corresponding to the 1.25G rate level; The noise filtering unit is configured based on the 50G / 25G, 12.5G, 10G, 1.25G four - level selection signals such that the 50G / 25G level is configured with a filtering bandwidth corresponding to the 25G rate level, the 12.5G level and the 10G level are configured with a filtering bandwidth corresponding to the 10G rate level, and the 1.25G level is configured with a filtering bandwidth corresponding to the 1.25G rate 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 the signal selection unit and the first signal amplifier, or output the amplified 50G / 25G / 12.5G electrical signals of 50GPON to the second signal amplifier through the transmission channel between the signal selection unit 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 transimpedance amplifier operates with transimpedance 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, 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, 1.25G, amplifies the 10G, 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, characterized in that, The first signal amplifier includes a 10G limiting amplifier and a 1.25G limiting amplifier; The transimpedance 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, characterized in that, The second signal amplifier includes a 50G limiting / linear amplifier, a 25G limiting / linear amplifier, and / or a 12.5G limiting / linear amplifier; The transimpedance 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, characterized in that, The optical-electric converter includes a PIN photodiode or an APD avalanche photodiode.

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

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