Method and device for reducing power consumption of far-end optical module

[0060] In order to solve the technical problem of the traditional solution based solely on the AAU self-adjustment that limits the loss reduction of the remote optical module, the embodiment of the present invention provides a method for reducing the power consumption of the remote optical module, which can be used in the TEC solution to reduce the TEC power. It can also be used in the heating resistor scheme to reduce the power consumption of the heating resistor.

[0061] combine image 3 with Figure 4 , the method provided by the embodiment of the present invention mainly includes the following steps:

[0062] Step 10, the DU optical module detects its own optical power information, and receives the optical power information of the AAU optical module through a slow channel; wherein the slow channel is set between the DU optical module and the AAU optical module, Specifically, it is an out-of-band top adjustment channel or an in-band management channel.

[0063] On the o...

[0097] In the embodiment of the present invention, taking the wavelength control by TEC and the DFB laser as an example, the method in the above-mentioned embodiment 1 is further described in detail, as follows:

[0098] The DU optical module can pre-calculate the relationship between the temperature and the wavelength of the laser, the relationship between the temperature and the luminous power, the uplink dispersion cost and the downlink dispersion cost, and save them for future use. Assuming that the transmission distance between the DU optical module and the AAU optical module is 10 km, the uplink dispersion penalty and the downlink dispersion penalty are both 1 dBm.

[0099] When the AAU optical module is powered on and started, the corresponding ambient temperature is 35°C, the current temperature setting T of the TEC is 60°C, and the temperature difference from the ambient temperature is 25°C. At this time, the standard wavelength emitted by the DFB laser is 1267nm , th...

[0118] On the basis of the above-mentioned embodiment 1 and the method provided by the embodiment, the embodiment of the present invention further provides a device for reducing power consumption of the remote optical module, which can be used to complete the remote optical module described in embodiment 1 and embodiment 2. module to reduce power consumption.

[0119] Such as Figure 11 As shown, the device mainly includes a central office DU optical module and a remote AAU optical module, and the data interaction between the DU optical module and the AAU optical module is performed through a slow channel; wherein, the slow channel specifically It is an out-of-band tuning channel or an in-band management channel.

[0120] The DU optical module can detect its own optical power information, and receive the optical power information of the AAU optical module through the slow channel, and then according to the optical power information of the DU optical module detected by itself ...