The problem of light collection in random lasers (RLs) is addressed. As the radiation emitted by this system is Lambertian due to its spatial incoherence, a device based on an ellipsoidal revolution mirror is designed, developed, and tested in order to optimize the harvesting of the radiation emitted by the RL. The system provides a simple injection procedure of the emitted energy at the entrance of a multimode optical fiber. The results obtained show that the device has a net energy efficiency of 35%, close to the theoretically expected one.

中文翻译：

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高效随机激光发射收集系统的能量测试

解决了随机激光器（RL）中的光收集问题。由于该系统发射的辐射由于其空间不一致性而呈朗伯型，因此设计，开发和测试了基于椭圆旋转镜的设备，以优化RL发射的辐射的收集。该系统在多模光纤的入口处提供了所发射能量的简单注入过程。获得的结果表明，该设备的净能量效率为35％，接近理论预期值。