METHOD OF PROTECTING OPTOELECTRONIC DEVICE FROM LASER RADIATION Russian patent published in 2025 - IPC H10F77/40 

FIELD: optoelectronic instrument making.

SUBSTANCE: invention relates to optoelectronic instrumentation and relates to a method of protecting an optoelectronic device from laser radiation. When implementing the method, optical radiation is received by an optoelectronic device and divided into two flows in energy proportions P₁=K₃P₂ and P₁>>P_2. First flow is delayed relative to the second flow for the specified time t_del. Power of the second flow P₂ is measured, power of the first flow is determined as P₁=K₃P₂ and power P₁ is compared with threshold value P_thr. If P₁<P_thr, optical radiation of the first flow is processed by optoelectronic means. If P₁≥P_thr, a signal from the radiation power sensor is transmitted to the rotary platform control unit to change the position of the power mirror, which for the protection of the optoelectronic device shuts off the first optical flow P₁ and directs it in time t<t_del to the reflecting element, which simulates the process of destruction under the effect of optical radiation of the most vulnerable element from the composition of the optoelectronic device.

EFFECT: higher efficiency of protection of optoelectronic device against damage by laser radiation.

1 cl, 2 dwg