Laser light power self-adaptation control method based on MCU

Abstract

The invention discloses a laser light power self-adaptation control method based on an MCU. An MCU control unit is communicated with an upper computer. The upper computer is used for setting the self-adaptation control modes as laser bias current regulation or laser light power regulation. When laser light power regulation is adopted, self-adaptation control is carried out by the MCU control unit according to the target luminous power value set by the upper computer and the actual luminous power value for laser sampling. When laser bias current regulation is adopted, self-adaptation control is carried out by the MCU control unit according to the target bias current value set by the upper computer and the actual bias current value for laser sampling. By means of the laser light power self-adaptation control method, the luminous power and the bias current of a laser can be kept constant, hardware regulation is not needed, the constant value of the light power of the laser can be changed through the upper computer, the same light transmission module can be used in other complete machines with different demands, and the utilization rate of the laser is greatly improved.

Description

technical field [0001] The invention relates to the field of lasers, in particular to an MCU-based adaptive control method for laser optical power. Background technique [0002] The control of the optical power of the laser in the existing optical transmission module is mainly to control the luminous power of the laser at a fixed power value through the hardware circuit, but as the ambient temperature of the optical transmission module changes, the luminous power of the laser will change. It has an impact on the index parameters of the optical transmission module and the whole machine. At the same time, the luminous power value of the optical transmission module is fixed, so that the optical transmission module cannot be used in other complete machines, and the availability of the optical transmission module is extremely low. Contents of the invention [0003] In view of this, the object of the present invention is to overcome the above-mentioned technical shortcomings, an...

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Problems solved by technology

[0002] The control of the optical power of the laser in the existing optical transmission module is mainly to control the luminous power of the laser at a fixed power value through the hardware circuit, but as the ambient temperature of the optical transmission module changes, the luminous power of the laser will change. It has an impact on the index parameters of the optical transmission module and the whole machine. At the same time, the luminous power value of the optical transmission module is fixed, so that the optical transmission module cannot be used in other complete machines, and the availability of the optical transmission module is extremely low.

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