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High-performance distributed feedback quantum cascade lasers grown by metalorganic vapor phase epitaxy
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10.1063/1.1830072
/content/aip/journal/apl/85/23/10.1063/1.1830072
http://aip.metastore.ingenta.com/content/aip/journal/apl/85/23/10.1063/1.1830072
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) High-resolution XRD rocking curve for the 10.3 μm emitting sample. About 50 satellite peaks are visible over a range, confirming excellent uniformity between periods of the QCL structure. (b) High-resolution TEM image of the active region of the same sample. Light-colored layers correspond to AlInAs barrier material. The injection and exit barriers are labeled, as are the active region quantum wells, QWs 1–4.

Image of FIG. 2.
FIG. 2.

(a) Laser emission wavelength of DFB MR2048 samples (squares) plotted against heat sink temperature. A linear tuning of the emission with temperature is observed, with a tuning coefficient of . The figure also shows the threshold current densities (triangles) measured for the same device, plotted on the right axis. (b) Laser emission spectra measured close to threshold at a range of temperatures between 190 and 320 K. The pulsing conditions used were 100 ns pulse width at a 100 kHz repetition rate.

Image of FIG. 3.
FIG. 3.

curves measured at three different temperatures for sample MR2050. (Inset) Laser spectra measured close to threshold for sample MR2050 at a range of temperatures between 77 and 350 K.

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/content/aip/journal/apl/85/23/10.1063/1.1830072
2004-12-08
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: High-performance distributed feedback quantum cascade lasers grown by metalorganic vapor phase epitaxy
http://aip.metastore.ingenta.com/content/aip/journal/apl/85/23/10.1063/1.1830072
10.1063/1.1830072
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