A compact stacking architecture for high-power diode-laser arrays is proposed and compared with traditional stacks. The objective of compact stacking is to achieve high brightness values without the use of microlenses. The calculated brightness for a compact stack is over 300 W mm~(-2) sr~(-1), which is approximately 40 times higher than that of a traditional stack made of similar laser emitters. Even higher brightness values of over 600 W mm~(-2) sr~(-1) were reached in practice. A laser head was manufactured in which the light from several compact laser stacks could be fiber coupled or the light could be transformed to a highly uniform beam.
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机译：提出了一种用于大功率二极管激光器阵列的紧凑堆栈架构，并将其与传统堆栈进行比较。紧凑堆叠的目的是在不使用微透镜的情况下实现高亮度值。对于紧凑的堆叠，计算出的亮度超过300 W mm〜（-2）sr〜（-1），大约是由类似激光发射器制成的传统堆叠的亮度的40倍。实际上，甚至达到了超过600 W mm〜（-2）sr〜（-1）的更高亮度值。制造了一个激光头，其中来自几个紧凑型激光堆栈的光可以进行光纤耦合，或者可以将光转换为高度均匀的光束。
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