2015
DOI: 10.1364/oe.23.001523
|View full text |Cite
|
Sign up to set email alerts
|

High temperature operation of far infrared (λ ≈20 µm) InAs/AlSb quantum cascade lasers with dielectric waveguide

Abstract: We demonstrate the high temperature operation, up to 80°C, of quantum cascade lasers emitting at a wavelength of 20 µm. The lasers are based on the InAs/AlSb materials and take benefit of a low loss plasmon-enhanced dielectric waveguide. The waveguide consists of doped InAs cladding layers and low-doped InAs spacers. For 2.9-mm-long devices, the threshold current density is 4.3 kA/cm2 and the measured peak output power is 7 mW at room temperature. The cavity length dependence of the threshold curren… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
1

Citation Types

1
23
0
2

Year Published

2015
2015
2020
2020

Publication Types

Select...
7
2
1

Relationship

1
9

Authors

Journals

citations
Cited by 37 publications
(26 citation statements)
references
References 14 publications
1
23
0
2
Order By: Relevance
“…Some progress in this field was achieved by exploiting InAs/AlSb material system. 6 On the other hand, ternary semiconductor compounds with heavier elements, in particular, HgCdTe, have (i) lower frequencies of optical phonons and (ii) variable bandgap energy covering the wide spectral range 0-1.6 eV. 1,7 This allows furthering the wavelength of radiation emission to VLWIR range, namely, 15-30 lm.…”
mentioning
confidence: 99%
“…Some progress in this field was achieved by exploiting InAs/AlSb material system. 6 On the other hand, ternary semiconductor compounds with heavier elements, in particular, HgCdTe, have (i) lower frequencies of optical phonons and (ii) variable bandgap energy covering the wide spectral range 0-1.6 eV. 1,7 This allows furthering the wavelength of radiation emission to VLWIR range, namely, 15-30 lm.…”
mentioning
confidence: 99%
“…The second substrate was a (100) silicon substrate with a 6° miscut towards the [110] direction. The 6° misfit was chosen to limit the formation of anti-phase domains appearing during the growth of III-V materials on non-polar group IV substrates 44 . Figure 1 presents scanning transmission electron microscopy (STEM) images of the QCL active zone grown on Si taken in the high angle annular dark field regime (HAADF) at different magnifications.…”
Section: Qcl Design and Epitaxial Growthmentioning
confidence: 99%
“…Quantum cascade lasers (QCLs) have become a very efficient and mature light source for the midto far-infrared [1]. Their wavelength coverage extends from 2.9 [2] to 20 µm [3] for room temperature operation and from 2.6 [4] to 200 µm [5] for cryogenic operation. The use of QCLs is particularly important for a wide range of gas sensing applications, owing to the fingerprints of many molecules in the MIR and FIR.…”
Section: Introductionmentioning
confidence: 99%