Observation of ultrabroad stimulated emission from a simplex quantum well based laser at the center wavelength of 1.06 μm is reported. With increased injection current, spectrum as broad as 38 nm and a pulsed output power of ∼50 mW have been measured. The experiments show evidence of an unexplored broad emission regime in the InGaAs/GaAs quantum well material system, which still needs theoretical modeling and further analysis.
Ultrabroad stimulated emission from quantum well laser
Huolei Wang, Xuliang Zhou, Hongyan Yu, Junping Mi, Jiaqi Wang, Jing Bian, Ying Ding, Weixi Chen, Wei Wang, Jiaoqing Pan; Ultrabroad stimulated emission from quantum well laser. Appl. Phys. Lett. 23 June 2014; 104 (25): 251101. https://doi.org/10.1063/1.4885366
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