[MD1] Advanced Lasers I

12:00 PM - 12:15 PM JST(3:00 AM - 3:15 AM UTC)

[MD1-4] Low-threshold and High-speed Photonic-Crystal Surface-Emitting Lasers Without Regrowth

○Pingping Qiu¹, Hengjie Zhou¹, Qiuhua Wang¹, Tongxin Wang^1,2, Qiang Kan^1,2 (¹Chinese Academy of Sciences, ²Univ. of Chinese Academy of Sciences)

Keywords:

Semiconductor lasers,Photonic crystal,Quantum well

We demonstrate a regrowth-free photonic-crystal surface-emitting laser with enhanced in-plane optical feedback and lateral electrical confinement. The fabricated device exhibits a low-threshold current of 11 mA, a high output power of 18 mW, and a direct modulation bandwidth of 11.7 GHz under continuous-wave operation.