Room temperature continuous wave operation of InAs/AlSb-based quantum cascade laser at λ ∼11 µm

Room temperature continuous wave operation of InAs/AlSb-based quantum cascade laser at λ ∼11 µm

For access to this article, please select a purchase option:

Buy article PDF
(plus tax if applicable)
Buy Knowledge Pack
10 articles for $120.00
(plus taxes if applicable)

IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.

Learn more about IET membership 

Recommend Title Publication to library

You must fill out fields marked with: *

Librarian details
Your details
Why are you recommending this title?
Select reason:
Electronics Letters — Recommend this title to your library

Thank you

Your recommendation has been sent to your librarian.

The InAs/AlSb quantum cascade lasers (QCLs) operating ∼11 µm in the continuous wave (cw) regime at room temperature are reported. The lasers with cleaved Fabry–Perot resonators demonstrated pulsed threshold current densities below 1 kA/cm2 at 300 K and operated in a cw up to 320 K that is the maximum temperature of such regime of operation for InAs-based QCLs. Distributed feedback lasers fabricated from the same wafer exhibited single frequency emission near 11 µm and operated in the cw regime up to 295 K.


    1. 1)
      • 1. Helm, M.: ‘The basic physics of intersubband transitions’, in Liu, H.C., Capasso, F. (Eds.): ‘Intersubband transitions in quantum wells: physics and device applications I, semiconductors and semimetals 62’ (Academic Press, San Diego, CA, USA, 1999), pp. 3957.
    2. 2)
    3. 3)
    4. 4)
      • 4. Alpes Lasers, catalog.
    5. 5)
    6. 6)
    7. 7)
    8. 8)
    9. 9)

Related content

This is a required field
Please enter a valid email address