激光限幅是针对由于激光技术的广泛应用和激光武器的实用化而采取的激光防护新技术．所谓激光限幅器，即是在低光强或低能流密度的条件下，器件具有高线性透过率，而在高光强或高能流密度的条件下，器件具有低非线性透过率，从而把输出光限制在一定的功率或能量以下，因此可有 Laser Limiting is a new laser protection technology that has been adopted due to the widespread use of laser technology and the practical use of laser weapons. The so-called laser limiter, which is in low light intensity or low energy density conditions, the device has a high linear transmittance, and in high light intensity or high energy density conditions, the device has a low non-linear transmittance, so that the Output light limited to a certain amount of power or energy, it may have