[9a-Z04-1~12] 13.8 Optical properties and light-emitting devices

[9a-Z04-5] [Highlight]Development of the surface-emitting Mid-IR quantum cascade lasers using photonic crystal-2

〇Rei Hashimoto¹, Tsutomu Kakuno¹, Kei Kaneko¹, Shinji Saito¹, Yuanzhao Yao², Naoki Ikeda², Takashi Kuroda², Kazuaki Sakoda² (1.Toshiba CMC, 2.NIMS)

Keywords:Quantum Cascade Laser, Surface emitting device, Photonic Crystal

Quantum cascade lasers (QCLs) are very attractive semiconductor emitters for various applications as a small light source in the infrared region. It is desired to realize surface-emitting QCLs because of the advantage in mass productivity. However it is difficult to apply a general VCSEL structure to the QCLs due to QCL emission is TM-polarized. In this research, we developed the surface-emitting QCL that extracts QCL light in the plane direction using a photonic crystal and achieved the lasing with a small divergence angle.