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Broadband Distributed-Feedback Quantum Cascade Laser Array Operating From 8.0 to 9.8 \mu m

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9 Author(s)
Lee, Benjamin G. ; Sch. of Eng. & Appl. Sci., Harvard Univ., Cambridge, MA ; Zhang, H.A. ; Pflugl, C. ; Diehl, L.
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An ultra-broadband distributed-feedback quantum cascade laser array was fabricated, using a heterogeneous cascade based on two bound-to-continuum designs centered at 8.4 and 9.6 mum. This array emitted in a range over 220 cm-1 near a 9-mu m wavelength, operated in pulsed mode at room temperature. The output power of the array varied between 100- and 1100-mW peak intensity.

Published in:

Photonics Technology Letters, IEEE  (Volume:21 ,  Issue: 13 )