发表机构
Yale University; Weizmann Institute of Science; Arizona State University; National Tsing Hua University（耶鲁大学; 魏茨曼科学研究所; 亚利桑那州立大学; 国立清华大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
针对激光同步中的频率无序挑战，通过编程耦合幅度与相位匹配，显著降低耦合预算，实现半导体激光器阵列的稳定同步，为相干光束合束提供高效方案。
AI 中文摘要
激光同步的一个重大挑战是固有的频率无序性。我们搭建了一个实验平台，用于编程半导体激光器的复杂耦合系数，以促进频率和相位锁定。阵列中每对激光器之间的耦合幅度被调节为与其频率差成比例。耦合相位被扫描以满足相位匹配条件，从而实现耦合场的相长干涉。全局同步所需的最小耦合预算显著降低，这一点已通过三个具有固有频率失谐的垂直腔面发射激光器的实验得到证明。定制耦合为实现相干光束合束的半导体激光器阵列稳定同步提供了一种高效方法。
英文摘要
A grand challenge for laser synchronization is the intrinsic frequency disorder. We build an experimental platform for programming the complex coupling coefficients of semiconductor lasers to promote frequency and phase locking. The coupling amplitude between every pair of lasers in an array is tuned to scale with their frequency difference. Coupling phases are scanned to meet the phase matching conditions for constructive interference of coupled fields. The minimum coupling budget for global synchronization is significantly reduced, as shown experimentally for three vertical-cavity surface-emitting lasers with intrinsic frequency detuning. The customized coupling offers an efficient approach to stable synchronization of semiconductor laser arrays for coherent beam combining.
