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Bipolar Cascade Superluminescent Diodes at the 1.04-μm Wavelength Regime

By Shi-Hao Guo


[[abstract]]In this study, we investigate the performance of GaAs-based bipolar cascade superluminescent diodes with different cavity lengths. The device operates around the important bio-optical therapeutic 1.04-mu m wavelength window. The introduction of tunnel junctions tends to minimize the nonuniform carrier distribution between distinct multiple quantum-wells (QWs), which is a problem in conventional SLDs, whose electroluminescent spectra are governed by the center wavelength of QWs near the p-side. Our devices exhibit nice electrical characteristics of low leakage current and overcome the limitation of nonuniform carrier distribution, thereby presenting a promising prospect for the near infrared white-light sources.[[fileno]]2010144010170[[department]]物理

Topics: EFFICIENCY, EMISSION, LASERS, [[classification]]33
Publisher: Institute of Electrical and Electronics Engineers
Year: 2014
DOI identifier: 10.1109/LPT.2008.2011140
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