Optical module and method for protecting optical layer

Abstract

The embodiment of the invention provides an optical module and a method for protecting an optical layer. The optical module comprises a control unit, at least two light-emitting units and at least two optical receiving units, wherein the control unit is connected with an external CPU (central processing unit) and connected with the at least two light-emitting units and the at least two optical receiving units respectively; and the at least two light-emitting units and the at least two optical receiving units are connected with external optical fibers respectively. According to the embodiment of the invention, the at least two light-emitting units and the at least two optical receiving units are placed in the optical module so as to form a main transmitting channel and a standby transmitting channel as well as a main receiving channel and a standby receiving channel respectively, thus being capable of flexibly switching to the standby channels when the main channels fail, thereby realizing the flexible and low-cost protection of the optical layer.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to an optical module and an optical layer protection method. Background technique [0002] The point-to-point optical interconnection of data equipment can be realized through transmission equipment or bare optical fiber. To ensure the reliability of data transmission, optical layer protection is required for optical lines. [0003] The existing optical layer protection schemes can include the following two types: First, in the scheme of realizing optical interconnection through bare optical fibers, since SFP / SFP+ / XFP optical modules are used for optical interconnection, one optical path corresponds to one optical module, and one optical The module corresponds to an interface, so one more interface and the optical module and optical path corresponding to the interface are added as backup links to realize optical layer protection; among them, SFP is a small form-factor plugga...

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Problems solved by technology

[0004] In the process of realizing the present invention, the inventor found that: in the above-mentioned first solution, one more interface is added, and the interface is an important resource, which results in high cost and high cost; in the above-mentioned second solution, It is necessary to establish a transmission equipment network, such as SDH (Synchronous Digital Hierarchy, Synchronous Digital System) or WDM (Wavelength Division Multiplex, Wavelength Division Multiplexing), which requires large investment and high maintenance costs

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