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Chemical beam epitaxy of 1.55-μm separate confinement heterostructure multiple quantum well laser diodes

机译:1.55μm分离约束异质结构多量子阱激光二极管的化学束外延

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摘要

We report on the realization of InGaAs-InGaAsP separate confinement heterostructure multiple quantum well lasers grown by chemical beam epitaxy. We discuss key growth parameters and characterization by secondary-ion mass spectroscopy, transmission electron microscopy, electron-beam-induced current, and x-ray diffraction. Threshold current densities as low as 450 A/cm~2 are obtained on lasers with five strained InGaAs quantum wells, along with internal quantum efficiencies of 90% and optical losses of 5 cm~(-1).
机译:我们报告了通过化学束外延生长的InGaAs-InGaAsP分离约束异质结构多量子阱激光器的实现。我们讨论了关键的生长参数,并通过二次离子质谱,透射电子显微镜,电子束感应电流和X射线衍射表征。具有五个应变InGaAs量子阱的激光器的阈值电流密度低至450 A / cm〜2,内部量子效率为90%,光损耗为5 cm〜(-1)。

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