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High power thermoelectrically cooled and uncooled quantum cascade lasers with optimized reflectivity facet coatings
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10.1063/1.3246799
/content/aip/journal/apl/95/15/10.1063/1.3246799
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/15/10.1063/1.3246799
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Peak output power as a function of injection current for a QCL with different AR coatings. The back facet of the device was HR coated. Inset: measured and predicted WPE as function of mirror losses for the same device.

Image of FIG. 2.
FIG. 2.

cw output power, voltage, and WPE as functions of the current for a -long, thermoelectrically cooled, HR/AR coated QCL operating at room temperature.

Image of FIG. 3.
FIG. 3.

Top: average output power as a function of the duty cycle of uncooled -long, HR/AR coated pulsed QCLs. Bottom: light-current-voltage characteristic of an uncooled cw QCL.

Image of FIG. 4.
FIG. 4.

Dependence of WPE of chips with HR and optimized AR coatings on cavity length computed using Schindler’s method.

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/content/aip/journal/apl/95/15/10.1063/1.3246799
2009-10-15
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: High power thermoelectrically cooled and uncooled quantum cascade lasers with optimized reflectivity facet coatings
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/15/10.1063/1.3246799
10.1063/1.3246799
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