Control method for optical module in optical network unit, optical module and optical network unit

Abstract

The embodiment of the invention discloses a control method for an optical module in an optical network unit, the optical module and the optical network unit. The method comprises the steps of receiving a non-light-emission instruction when the optical module is electrified; receiving a wavelength configuration instruction; configuring a working wavelength and a standby wavelength in a burst mode according to the wavelength configuration instruction; receiving a light-emission instruction; and carrying out working in the burst mode according to the configured working wavelength and standby wavelength. Under the control of an optical network unit, when the optical module is electrified, the optical module does not emit light; and only after the working wavelength and the standby wavelength are configured in the burst mode according to the subsequently received wavelength configuration instruction, the optical module works in the burst mode according to the configured wavelengths under the control of the light-emission instruction. Through adoption of the technical scheme provided by the embodiment of the invention, the problem that wavelength crosstalk occurs between different ONU groups possibly resulting from the fact that the optical module emits the light of the un-configured wavelength after the optical module is initially electrified can be effectively avoided, and the normal work of the optical network unit is ensured.

Description

technical field [0001] The invention relates to the field of access network technology, in particular to a method for controlling an optical module in an optical network unit, an optical module, and an optical network unit. Background technique [0002] In today's access network field, the user terminal usually adopts TWDM (Time and Wavelength Division Multiplexed, wavelength division time division multiplexing) technology. Specifically, as figure 1 As shown, the user end includes multiple ONU (Optical Network Unit, Optical Network Unit) groups, which may also be called multiple groups of optical channels, and one ONU group corresponds to one OLT (Optical Line Terminal, Optical Line Terminal) at the far end. Specifically, each ONU group may include multiple ONUs (for example, 32 or 64), and each ONU may be inserted with an optical module for emitting light. The light-emitting wavelengths of each ONU in an ONU group are the same, and they use time-division multiplexing to w...

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a method for controlling an optical module in an optical network unit, an optical module, and an optical network unit, which are used to solve different ONUs caused by power-on of the optical module in the ONU located on the user side of the access network in the prior art The problem of wavelength crosstalk between groups

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