A method for starting a multi-channel parallel optical module

Abstract

The invention discloses a multi-channel parallel optical module starting method. The method includes the following steps that first, temperature values of lasers are acquired, and an optimal configuration parameter of each laser under a current temperature value is searched for in a lookup table, stored and updated; second, whether first-time powering on is performed or not is judged, and if yes, the third step is executed; third, the parameter of each laser is configured with a minimum value, and the parameter of the laser is stored in a laser driver register; fourth, the configuration parameter stored in each laser driver register is increased according to the stride delta I1, and the storage is updated; fifth, each current configuration parameter is compared with the optimum configuration parameter, and if the current configuration parameter is smaller than the optimum configuration parameter, the fourth step is executed again. According to the multi-channel parallel optical module starting method, first, the minimum values are used for configuring all the channel lasers, then, the parameters of the lasers are gradually configured in an incremental mode, and therefore not only is the power-on sequence requirement met, but also damage to the lasers caused by power-on surge is avoided.

Description

technical field [0001] The invention belongs to the technical field of optical fiber communication, and in particular relates to a method for starting a multi-channel parallel optical module. Background technique [0002] Optical fiber communication technology is increasingly used in various harsh environments and high-reliability systems. As the transmission rate of optical modules is getting higher and higher, and the number of parallel channels is increasing at the same time. The channel power-on method is to configure the laser parameters for the laser channel by channel, and the one-time configuration becomes the power-on method with the optimal value. The above-mentioned power-on method is only suitable for the parameter configuration of the optical module with a maximum of 12 channels. When the optical module includes more channels, if the existing parameter configuration method is used, the current at the moment of power-on will be too large, forming a power-on surge...

AI Technical Summary

Problems solved by technology

[0002] Optical fiber communication technology is increasingly used in various harsh environments and high-reliability systems. As the transmission rate of optical modules is getting higher and higher, and the number of parallel channels is increasing at the same time. The channel power-on method is to configure the laser parameters for the laser channel by channel, and the one-time configuration becomes the power-on method with the optimal value. The above-mentioned power-on method is only suitable for the parameter configuration of the optical module with a maximum of 12 channels. When the optical module includes more channels, if the existing parameter configuration method is used, the current at the moment of power-on will be too large, forming a power-on surge, and damaging components and lasers

[0003] In addition, if the current power-on method is adopted to power on multi-channel (more than 12 channels) optical modules channel by channel, the power-on time will be relatively long, which cannot meet the power-on sequence requirements that all channels must be fully illuminated within the start-up time limit. Cannot meet the power-on sequence requirement that all channels must be fully illuminated within the start-up time limit required by the industry standard

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