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Long wavelength (λ≃13 μm) quantum cascade lasers

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6 Author(s)
Gmachl, C. ; AT&T Bell Labs., Murray Hill, NJ, USA ; Capasso, F. ; Tredicucci, A. ; Sivco, D.L.
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Long wavelength (λ≃13 μm) quantum-cascade (QC) lasers are reported. With these lasers operating close to the cutoff wavelength of the second atmospheric window, full coverage of the mid-infrared transparency region is now achieved with GaInAs/AlInAs QC lasers. These devices operate in pulsed mode up to 175 K, with several milliwatts of peak output power at liquid nitrogen temperature

Published in:

Electronics Letters  (Volume:34 ,  Issue: 11 )