High-power blue-violet AlGaN-cladding-free m-plane InGaN/GaN laser diodes

被引:30
作者
Farrell, R. M. [1 ]
Haeger, D. A. [2 ]
Hsu, P. S. [2 ]
Schmidt, M. C. [2 ]
Fujito, K. [3 ]
Feezell, D. F. [2 ]
DenBaars, S. P. [1 ,2 ]
Speck, J. S. [2 ]
Nakamura, S. [1 ,2 ]
机构
[1] Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA
[2] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA
[3] Mitsubishi Chem Corp, Optoelect Labs, Ushiku, Ibaraki 3001295, Japan
关键词
GAN; OPERATION; NITRIDE;
D O I
10.1063/1.3656970
中图分类号
O59 [应用物理学];
学科分类号
摘要
We demonstrate AlGaN-cladding-free (ACF) m-plane InGaN/GaN laser diodes (LDs) with peak output powers and estimated front facet optical power densities that are comparable to the state-of-the-art single-stripe emitter c-plane LDs. The threshold current density, slope efficiency, and peak output power were 4.66 kA/cm(2), 1.29 W/A, and 1.6 W, respectively, after facet coating and under pulsed conditions. Catastrophic optical mirror damage was not observed up to an estimated optical power density of 51.2 MW/cm(2) at the front mirror facet, indicating the potential for using ACF m-plane InGaN/GaN LDs in high-power LD applications. (C) 2011 American Institute of Physics. [doi:10.1063/1.3656970]
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页数:3
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