High-power AlInGaN-based violet laser diodes with InGaN optical confinement layers

作者: Sung-Nam Lee , J. K. Son , H. S. Paek , Y. J. Sung , K. S. Kim

DOI: 10.1063/1.2965113

关键词:

摘要: InGaN optical confinement layers (OCLs) were introduced into blue-violet AlInGaN-based laser diodes (LDs), resulting in the drastic improvements of lasing performance. Comparing with conventional LD structure, lowest threshold current density 2.3kA∕cm2 has been achieved by adding 100-nm-thick OCLs which represented maximum factor. Additionally, we observed high quantum efficiency and uniform emission intensity distribution wells grown on lower OCL than typical GaN layer. Upper can reduce Mg diffusion from p-type to active region separating distance between layers.

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