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Low-threshold, strained-layer, GaInP/AlGaInP GRINSCH visible diode lasers

机译:低阈值应变层GaInP / AlGaInP GRINSCH可见二极管激光器

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Graded-index, separate-confinement heterostructure (GRlNSCH) semiconductor diode visible lasers employing a strained-layer GaInP single quantum well were fabricated from metalorganic chemical-vapor deposition (MOCVD)-grown epitaxial material. CW threshold current densities as low as 650 A/cm/sup 2/ were measured for uncoated, 1200- mu m-long, 15- mu m-wide ridge structures operating at 30 degrees C and emitting at 655-670 nm. A maximum output under quasi-CW conditions (100 mu s pulse length, 1% duty factor) as high as 320 mW/facet was achieved before catastrophic failure. This threshold current density is believed to be the lowest reported to date for visible light diode lasers.
机译:由金属有机化学气相沉积(MOCVD)生长的外延材料制造了采用应变层GaInP单量子阱的梯度折射率分离约束异质结构(GRlNSCH)半导体二极管可见光激光器。对于在30摄氏度下工作并在655-670 nm发射的未涂覆的1200μm长,15μm宽的脊结构,测得的CW阈值电流密度低至650 A / cm / sup 2 /。在灾难性故障发生之前,在准连续波条件下(100μs脉冲长度,1%占空比)的最大输出高达320 mW /面。据信该阈值电流密度是迄今为止可见光二极管激光器中最低的。

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