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Scaling the output power of quantum-cascade lasers with a number of cascades

✍ Scribed by O. Fedosenko; M. Chashnikova; S. Machulik; J. Kischkat; M. Klinkmüller; A. Aleksandrova; G. Monastyrskyi; M.P. Semtsiv; W.T. Masselink

Publisher
Elsevier Science
Year
2011
Tongue
English
Weight
254 KB
Volume
323
Category
Article
ISSN
0022-0248

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Results are presented for two GaAs/AlGaAs quantum cascade laser (QCL) structures that emit at frequencies of 2.59 and 2.75 THz. Both structures have a nominally identical, bound-to-continuum active region design, and the difference between their emission frequencies is interpreted as resulting from