Topological on-chip lasers
Topological on-chip lasers
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DOI：
10.1063/5.0150421
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发表时间：
2023-07-01
期刊：
影响因子：
5.6
通讯作者：
Gu, Qing
中科院分区：
文献类型：
--
作者：
Li, Zhitong;Luo, Xi-Wang;Gu, Qing
微型片上激光器是光子集成电路的重要组成部分，用于包括光通信和量子信息处理在内的众多应用。然而，小尺寸、鲁棒性、单模操作和高输出功率的矛盾要求导致了对最佳片上激光器设计的数十年的探索。在这一研究过程中，最初在凝聚态物理学的电子材料中设想的物质的拓扑相被成功地扩展到光子学，并应用于微型激光器的设计。得益于拓扑保护，拓扑边模激光器可以比普通体模激光器更有效、更鲁棒地发射。此外，在大范围的激发能量的单模操作可以通过策略性地操纵激光腔中的拓扑模式来实现。在这方面，我们讨论了拓扑片上激光器的最新进展和未来的研究方向进行了展望。(c)2023年作者。除非另有说明，否则所有文章内容均根据知识共享署名（CC BY）许可证（http：//creativecommons.org/licenses/by/4.0/）进行许可。
A miniature on-chip laser is an essential component of photonic integrated circuits for a plethora of applications, including optical communication and quantum information processing. However, the contradicting requirements of small footprint, robustness, single-mode operation, and high output power have led to a multi-decade search for the optimal on-chip laser design. During this search, topological phases of matter-conceived initially in electronic materials in condensed matter physics-were successfully extended to photonics and applied to miniature laser designs. Benefiting from the topological protection, a topological edge mode laser can emit more efficiently and more robustly than one emitting from a trivial bulk mode. In addition, single-mode operation over a large range of excitation energies can be achieved by strategically manipulating topological modes in a laser cavity. In this Perspective, we discuss the recent progress of topological on-chip lasers and an outlook on future research directions. (c) 2023 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).