Room-temperature CW operation of a nitride-based vertical-cavity surface-emitting laser using thick GaInN quantum wells

被引:44
作者
Furuta, Takashi [1 ]
Matsui, Kenjo [1 ]
Horikawa, Kosuke [1 ]
Ikeyama, Kazuki [1 ]
Kozuka, Yugo [1 ]
Yoshida, Shotaro [1 ]
Akagi, Takanobu [1 ]
Takeuchi, Tetsuya [1 ]
Kamiyama, Satoshi [1 ]
Iwaya, Motoaki [1 ]
Akasaki, Isamu [1 ,2 ,3 ]
机构
[1] Meijo Univ, Fac Sci & Technol, Nagoya, Aichi 4688502, Japan
[2] Nagoya Univ, Grad Sch Engn, Nagoya, Aichi 4648603, Japan
[3] Nagoya Univ, Akasaki Res Ctr, Nagoya, Aichi 4648603, Japan
关键词
DIODES;
D O I
10.7567/JJAP.55.05FJ11
中图分类号
O59 [应用物理学];
学科分类号
摘要
We demonstrated a room-temperature (RT) continuous-wave (CW) operation of a GaN-based vertical-cavity surface-emitting laser (VCSEL) using a thick GaInN quantum well (QW) active region and an AlInN/GaN distributed Bragg reflector. We first investigated the following two characteristics of a 6nm GaInN 5 QWs active region in light-emitting diode (LED) structures. The light output power at a high current density (similar to 10 kA/cm(2)) from the 6 nm GaInN 5 QWs was the same or even higher than that from standard 3 nm 5 QWs. In addition, we found that hole injection into the farthest QW from a p-layer was sufficient. We then demonstrated a GaN-based VCSEL with the 6 nm 5 QWs, resulting in the optical confinement factor of 3.5%. The threshold current density under CW operation at RT was 7.5 kA/cm(2) with a narrow (0.4 nm) emission spectrum of 413.5nm peak wavelength. (C) 2016 The Japan Society of Applied Physics
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页数:4
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