UV devices (2)

[LEDIA3-02] Aperture dimeter dependences of highly efficient GaN VCSELs with well-controlled cavity lengths

*Mitsuki Yanagawa¹, Ruka Watanabe¹, Kenta Kobayashi¹, Taichi Nisikawa¹, Tetsuya Takeuchi¹, Satoshi Kamiyama¹, Motoaki Iwaya¹ (1. Meijo University)

We demonstrated highly efficient GaN VCSELs with well-controlled cavity lengths by a combination of in situ and ex situ controls. More than 20% wall plug efficiency and 10mW light output power were obtained from a 5-µm aperture VCSELs.