[21a-A101-1~11] 3.10 Photonic structures and phenomena (formerly 3.11)

[21a-A101-7] Control of current distribution for enhanced robustness of single-mode oscillation in a photonic-crystal surface-emitting laser

〇Eiji Miyai^1,2, Wataru Kunishi^1,2, Takuya Inoue¹, Koki Izumi¹, Masahiro Yoshida¹, Menaka De Zoysa¹, Kenji Ishizaki¹, Susumu Noda¹ (1.Kyoto Univ., 2.ROHM Co., Ltd.)

Keywords:Semiconductor laser, Photonic crystal

Photonic crystal lasers (PCSELs) enable both high-power operation and high-quality beam, and are expected for laser processing, sensing etc. For mass production of PCSELs, the robustness of design becomes important. Thus, in order to introduce a mechanism to suppress the oscillation at higher-order modes, we theoretically investigated the effects of Gaussian current-density distribution on suppression of higher-order modes.