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MOVPE-grown quantum cascade lasers operating at ∼9 μm wavelength

✍ Scribed by A.B. Krysa; J.S. Roberts; R.P. Green; L.R. Wilson; H. Page; M. Garcia; J.W. Cockburn

Book ID
108165931
Publisher
Elsevier Science
Year
2004
Tongue
English
Weight
208 KB
Volume
272
Category
Article
ISSN
0022-0248

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Quantum cascade lasers operating at ¿ 20 m wavelength are reported. Pulsed operation was obtained up to 140 K with a peak power of few milliwatts at cryogenic temperatures. Laser action originates from interminiband transitions in "chirped" superlattice active regions. The waveguides are based on su