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Broad area photonic crystal distributed feedback quantum cascade lasers emitting 34 W at
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10.1063/1.3496043
/content/aip/journal/apl/97/13/10.1063/1.3496043
http://aip.metastore.ingenta.com/content/aip/journal/apl/97/13/10.1063/1.3496043
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) , , and coupling coefficients of rectangular PhC lattice with an aspect ratio of 2 with elliptical and circular features. (b) Depiction of the rectangular lattice dimensions with elliptical holes. (c) The cross section view of a cleaved facet and buried gratings on the finalized device.

Image of FIG. 2.
FIG. 2.

The P-I-V characteristics of a 3 mm long PCDFB QCL (solid line) with a cavity width of and a Fabry–Perot QCL (dashed line) with a cavity width of at the same cavity length. Measurements are taken at room temperature under pulsed operation.

Image of FIG. 3.
FIG. 3.

The measured far-field characteristics of PCDFB lasers at various driving currents from to under pulsed operation and at room temperature. The figure of merit vs driving current is shown in the inset on the bottom left.

Image of FIG. 4.
FIG. 4.

Spectra of the PCDFB QCL at various driving currents between and under pulsed operation at room temperature.

Image of FIG. 5.
FIG. 5.

Photonic band diagram of an infinitely extending two-dimensional rectangular photonic crystal with an aspect ratio of 2 and elliptical holes with a ratio of 1.3 for the semimajor and semiminor axes.

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/content/aip/journal/apl/97/13/10.1063/1.3496043
2010-10-01
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Broad area photonic crystal distributed feedback quantum cascade lasers emitting 34 W at λ∼4.36 μm
http://aip.metastore.ingenta.com/content/aip/journal/apl/97/13/10.1063/1.3496043
10.1063/1.3496043
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