Optically pumped, indirect-gap AlxGa1-xAs lasers

被引:0
|
作者
Worner, A [1 ]
Westphaling, R [1 ]
Kalt, H [1 ]
Kohler, K [1 ]
机构
[1] FRAUNHOFER INST APPL SOLID STATE PHYS,D-79108 FREIBURG,GERMANY
来源
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 1997年 / 64卷 / 01期
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中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We demonstrate optically pumped lasers with active layers of indirect-gap AlxGa1-xAs operating up to room temperature. The emission wavelength is 609 nm at 20 K and 639 nm at 300 K, respectively, The laser threshold shows a weak sensitivity on the lattice temperature. The relevant parameters of the electron-hole plasma close to threshold are determined from gain spectroscopy using the variable stripe-length method.
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页码:73 / 76
页数:4
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