Gain medium‐doped active optical fibers for optical amplification and long‐range transmission have triggered a lot of researches. Traditional rare‐earth ion‐doped active fibers have non‐adjustable emissions, narrow band luminescence, limited gain enhancement, and other challenges. The unique optical properties of quantum dots (QDs) can further improve the doped optical fibers in the light amplification capacity, temperature sensitivity and to gain a broad‐spectrum coverage and lower laser threshold and other superiorities. However, there are few systematic discussions on the development of the technologies and applications of those QD‐doped optical fibers. In this review, the optical properties, temperature characteristics and optical amplification mechanisms of QD‐doped optical fibers are outlined. Then, the preparation technologies and the applications of QD‐doped optical fibers are highlighted. Additionally, the existing challenges and future development prospects of QD‐doped optical fibers are discussed.

中文翻译：

---

量子点掺杂光纤

用于光放大和长距离传输的增益介质掺杂有源光纤引发了许多研究。传统的稀土离子掺杂有源光纤具有发射不可调、发光带窄、增益增强有限等挑战。量子点（QDs）独特的光学特性可以进一步提高掺杂光纤的光放大能力、温度敏感性以及获得广谱覆盖和较低激光阈值等优越性。然而，关于QD掺杂光纤的技术和应用发展的系统讨论却很少。在这篇综述中，概述了 QD 掺杂光纤的光学特性、温度特性和光放大机制。然后重点介绍了QD掺杂光纤的制备技术和应用。此外，还讨论了量子点掺杂光纤现有的挑战和未来的发展前景。