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- W2063013119 abstract "The extreme temperature sensitivity of the threshold current, Ith, above room temperature in visible edge-emitting lasers (EELs) is investigated. From measurements as a function of temperature we find that Ith is dominated by the radiative current, IRad up to ∼230 K so Ith ≈ IRad as expected for an ideal device. However, above 230 K, Ith increases sharply due to the onset of indirect carrier leakage which we calculate to be ∼20% of Ith at room temperature at an emission wavelength of 672 nm. By 350 K it accounts for >70% of Ith. The operating wavelength of the device can be reduced by applying pressure and then we observe that the leakage rapidly increases and at 655 nm it forms ∼70% of Ith at room temperature. This gives rise to a significant deterioration in the light output characteristics and has important implications for producing high power EELs and VCSEL structures based upon Al(GaInP) at these shorter operating wavelengths." @default.
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- W2063013119 date "2001-01-01" @default.
- W2063013119 modified "2023-09-23" @default.
- W2063013119 title "Quantifying the Effect of Indirect Carrier Leakage on Visible Al(GaInP) Lasers Using High Pressures and Low Temperatures" @default.
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- W2063013119 doi "https://doi.org/10.1002/1521-3951(200101)223:2<567::aid-pssb567>3.0.co;2-6" @default.
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