Third order optical limiting utilizes nonlinear absorption or scatter to preferentially reduce the optical throughput of intense light through a medium. While these processes are dependent on intensity, it is often the transmitted energy or power that needs to be limited to avoid eye, sensor or detector damage. This is problematic when the input is a vortex mode or other higher order Gaussian distributions such as Bessel-Gaussian modes where the relationship between optical power and the on axis intensity is more complicated than for the TEM00 Gaussian mode. Here we show that for higher order Bessel-Gaussian modes that beam power transmission is not equivalent to peak intensity transmission through intensity dependent absorption or scatter based optical limiters. We present a theoretical model and experimental data that demonstrates that the power throughput in these media, increases by 4 and 7 times for n = 1 and 2 Bessel-Gaussian modes, respectively, over that observed when a TEM00 mode is used.

中文翻译：

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涡旋光束通过三阶强度相关非线性光学限幅器的能量传输

三阶光学限制利用非线性吸收或散射来优先降低强光通过介质的光通量。虽然这些过程取决于强度，但通常需要限制传输的能量或功率以避免眼睛、传感器或探测器损坏。当输入是涡旋模式或其他高阶高斯分布（例如贝塞尔-高斯模式，其中光功率和轴上强度之间的关系比 TEM00 高斯模式更复杂）时，这是有问题的。在这里，我们表明，对于高阶贝塞尔-高斯模式，光束功率传输不等同于通过强度相关吸收或基于散射的光学限制器的峰值强度传输。