Photonic crystals (PhC) represent an important class of silicon photonics components employed as wavelength selective resonators to act as narrow-band mirrors in integrated lasers due to their small footprint, high surface area, and Q-factor/volume ratio that enables efficient confinement of light, required for improved performances of the laser. These properties of PhCs are key for the potential deployment of PhC based high power, energy efficient and versatile semiconductor lasers for telecom, datacom, optical sensing and biomedical applications. In this paper, we report the main advances on PhC based lasers from photonic crystal surface-emitting lasers (PCSELs) to the new hybrid external cavity laser (HECLs) configurations.

中文翻译：

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光子晶体激光器：从光子晶体表面发射激光器 (PCSEL) 到混合外腔激光器 (HECL) 和拓扑 PhC 激光器 [邀请]

光子晶体 (PhC) 代表了一类重要的硅光子元件，用作波长选择谐振器，由于其占地面积小、表面积大和 Q 因子/体积比能够有效限制光，这是提高激光器性能所必需的。PhC 的这些特性是潜在部署基于 PhC 的高功率、节能和多功能半导体激光器用于电信、数据通信、光学传感和生物医学应用的关键。在本文中，我们报告了基于 PhC 的激光器的主要进展，从光子晶体表面发射激光器 (PCSEL) 到新型混合外腔激光器 (HECL) 配置。