Optical module and information transmission method for optical module

Abstract

The invention provides an optical module and an information transmission method for the optical module. The optical module includes: a storage unit for storing first predetermined information; a variable optical attenuator (VOA) unit for modulating the luminous power of the optical module; a control unit for obtaining from the storage unit the first predetermined information, and control the VOA unit to modulate its output optical power according to the first predetermined information, so as to send an optical signal including the first predetermined information. Through the optical module and the information transmission method for the optical module provided by the present invention, the control unit of the optical module controls the VOA unit to modulate the luminous power of the optical module to send the first predetermined information, so as to realize the connection relationship of the optical module Real-time online monitoring, automatically identify the connection relationship between optical modules, maintain the interface connection topology, reduce the complexity of troubleshooting, and reduce the labor cost and time cost of troubleshooting.

Description

Technical field [0001] The present invention relates to optical communication technology, in particular to an optical module and an information transmission method for the optical module. Background technique [0002] In large-scale networks, especially large-scale data centers, more and more network interfaces use optical modules for communication. The luminous power and received optical power of the optical modules can be monitored through equipment. Only the two receiving and luminous powers are normal and correctly connected. Only an optical module can support the normal startup of the upper layer protocol. However, the received light and luminescence conditions in the normal range cannot reflect the correct connection relationship between the two optical modules. For example, if the optical fiber is wrongly connected, the light of the third optical module other than the two optical modules is incorrectly introduced into the optical module. The receiving port will cause the ...

AI Technical Summary

Problems solved by technology

However, the normal range of received light and light emission does not reflect the correct connection relationship between the two optical modules. For example, if the optical fiber is wrongly connected, the light emission of the third optical module other than the two optical modules is incorrectly introduced into the optical module. The receiving port of the optical module will cause the situation that although the optical module receives light normally, it cannot support the intercommunication of the upper layer protocol

[0003] However, in the process of network construction, operation, and maintenance, a large number of optical fibers connect a large number of optical modules, and it is necessary to manually identify the connection relationship of optical modules, which increases the difficulty of maintaining the corresponding relationship between optical modules, especially in large-scale In the data center, there are a large number of cross-room and cross-floor connections, which are often connected through ODF. In this way, the maintenance of the corresponding relationship between optical modules is more complicated, which leads to high maintenance labor costs and low maintenance efficiency.

[0004] For example, in the process of network construction, routers and transmission equipment are constructed separately. If 1,000 optical modules need to be connected between routers and transmission equipment, 1,000 pairs of optical fibers need to be connected at the same time, such as figure 1 As shown, if some two cores of the 1000 pairs of optical fibers are connected incorrectly, the receiving end of A1 optical module is connected to the transmitting end of B2 optical module, and the receiving end of A2 optical module is connected to the transmitting end of B1 optical module. In this way, A1 -The connection relationship between B1 and A2-B2 is destroyed, and the devices at both ends show that the emitted light and received light of the two groups of interfaces are within the normal range, but the upper layer protocol cannot be opened, and it is necessary to manually judge the connection logic error from the 2000-core optical fiber Obviously, it is very difficult, especially if such a wrong connection occurs between multiple interfaces at the same time, the fault judgment will be more complicated and difficult

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