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We report a high power mid-infrared interband cascade laser operating at temperatures up to 170 K. The threshold current densities of this laser are considerably lower than the previously reported values in cascade lasers. The structure was grown by molecular beam epitaxy on a GaSb substrate and comprises 23 periods of active regions separated by digitally graded multilayer injection regions. A peak optical output power of
Published in:
Applied Physics Letters
(Volume:71
,
Issue:
17
)
Date of Publication: Oct 1997
- Page(s):
- 2409 - 2411
- ISSN :
- 0003-6951
- Digital Object Identifier :
- 10.1063/1.120076
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 18 June 2009
- Issue Date :
- Oct 1997
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