Applications in timekeeping, quantum sensing and quantum computing have sparked growing demand for high-performance photonic integrated circuit (PIC) lasers at visible and short near-infrared wavelengths between 400 nm and 1,000 nm. This Review summarizes the application needs and recent advances in such PIC lasers, focusing on low-noise, continuous-wave operation needed for many quantum technologies. We discuss the building blocks for these laser systems, including the heterogeneous and hybrid integration of gain media, low-loss PICs, external-cavity and self-injection locking schemes, and nonlinear wavelength conversion through optical harmonic generation and optical parametric oscillation processes. We review demonstrations utilizing various combinations of these elements. Finally, we consider current PIC laser performance in the context of a few example quantum technologies that require lasers at multiple wavelengths.

计时、量子传感和量子计算领域的应用引发了对 400 nm 至 1,000 nm 之间可见光和短近红外波长的高性能光子集成电路 (PIC) 激光器的需求不断增长。本综述总结了此类 PIC 激光器的应用需求和最新进展，重点关注许多量子技术所需的低噪声、连续波操作。我们讨论这些激光系统的构建模块，包括增益介质的异构和混合集成、低损耗 PIC、外腔和自注入锁定方案，以及通过光学谐波生成和光学参量振荡过程实现的非线性波长转换。我们回顾了利用这些元素的各种组合的演示。最后，我们在一些需要多个波长激光器的量子技术示例的背景下考虑当前 PIC 激光器的性能。