Novel optical devices, materials, structure and applications (2)

[ALPS31-04] Demonstration of a 1.5 µm wavelength NPN-type photonic-crystal surface-emitting laser exceeding 100 mW

*Masahiro Hitaka¹, Kazuyoshi Hirose¹, Yutaka Takagi¹, Takahiro Sugiyama¹, Akio Ito¹, Tadataka Edamura¹ (1. Hamamatsu Photonics K.K.)

We propose a 1.5 μm wavelength NPN-type PCSEL structure to reduce unexpected p-dopant Zn diffusion and intervalence band absorption. The peak output power is 120 mW and the slope efficiency is 56 mW/A.