We report on a new type of high-power, single-mode vertical-cavity surface-emitting laser (VCSEL) based on the lasing of a slow-light mode laterally propagating in a long-apertured VCSEL structure. A VCSEL length of 500 μ m produces high single-mode power with narrow beam divergence for sensing and 3D imaging applications. Slow-light modes show a lower threshold current and better beam quality. We found the optical resonance in the oxidized region at the end of a mesa helps when selecting a transverse mode. We obtained a quasi-single-mode power of 22 mW under continuous-wave operation. This result shows the possibility to achieve high single-mode power and high beam quality by introducing a mode selection mechanism.

中文翻译：

---

高功率，准单模垂直腔面发射激光器，具有近衍射极限和低发散光束

我们报告了一种新型的高功率，单模垂直腔面发射激光器（VCSEL），它基于在长孔VCSEL结构中横向传播的慢光模式的发射。VCSEL长度为500μm，可产生高单模功率，并且光束发散较窄，适合传感和3D成像应用。慢光模式显示较低的阈值电流和更好的光束质量。我们发现，在选择横向模式时，台面末端氧化区域的光学共振会有所帮助。在连续波操作下，我们获得了22 mW的准单模功率。该结果表明通过引入模式选择机制可以获得高单模功率和高光束质量的可能性。