Nonclassical light sources have a vital role in quantum optics as they offer a unique resource for studies in quantum technology. However, their applicability is restricted by their low intensity, while the development of new schemes producing intense nonclassical light is a challenging task. In this perspective article, we discuss potential schemes that could be used towards the development of high photon flux nonclassical light sources and their future prospects in nonlinear optics.

中文翻译：

---

高光子通量非经典光及其在非线性光学中的应用

非经典光源在量子光学中起着至关重要的作用，因为它们为量子技术的研究提供了独特的资源。然而，它们的适用性受到其低强度的限制，而开发产生强烈非经典光的新方案是一项具有挑战性的任务。在这篇透视文章中，我们讨论了可用于开发高光子通量非经典光源的潜在方案及其在非线性光学中的未来前景。