Beam quality improvement of high-power semiconductor lasers using laterally inhomogeneous waveguides

doi:10.1063/1.5054645

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	Beam quality improvement of high-power semiconductor lasers using laterally inhomogeneous waveguides
	Miah, M. J.; Strohmaier, S.; Urban, G.; Bimberg, D.
	2018
发表期刊	Applied Physics Letters
ISSN	0003-6951
卷号	113 期号:22 页码:5
摘要	High-brightness vertical broad-area edge-emitting (HiBBEE) semiconductor lasers in the 1060 nm wavelength range with excellent beam quality in both lateral and vertical directions are presented. An approach to modify the thresholds of the transverse lateral modes of ridge-waveguide (RW) lasers is investigated. It has been experimentally shown that inhomogeneities in both sides of the ridges increase optical losses of the higher-order lateral modes as compared to the fundamental mode. The resulting enhancement in the contrast of the optical losses favors the emission of the fundamental mode and improves the beam quality. Reference RW HiBBEE lasers with a 15 mu m wide conventional ridge and a 2.0 mm long cavity provide laterally multi-lateral mode emission which is typical for RW lasers with such wide and homogeneous ridges. On the other hand, RW HiBBEE lasers with triangular-shaped corrugations in both sides of 15 mu m wide ridges provide single-lateral mode emission across a wide current range and improve the lateral M-2 factor by more than a factor of 2 in the investigated current range. The corrugated RW HiBBEE lasers provide an almost 2 times higher brightness than the reference RW lasers. Published by AIP Publishing.
关键词	mode filamentation Physics
DOI	10.1063/1.5054645
收录类别	SCI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/60584
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Miah, M. J.,Strohmaier, S.,Urban, G.,et al. Beam quality improvement of high-power semiconductor lasers using laterally inhomogeneous waveguides[J]. Applied Physics Letters,2018,113(22):5.
APA	Miah, M. J.,Strohmaier, S.,Urban, G.,&Bimberg, D..(2018).Beam quality improvement of high-power semiconductor lasers using laterally inhomogeneous waveguides.Applied Physics Letters,113(22),5.
MLA	Miah, M. J.,et al."Beam quality improvement of high-power semiconductor lasers using laterally inhomogeneous waveguides".Applied Physics Letters 113.22(2018):5.

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