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Room temperature continuous wave operation of quantum cascade lasers with watt-level optical power
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10.1063/1.2894569
/content/aip/journal/apl/92/10/10.1063/1.2894569
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/10/10.1063/1.2894569
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Electroluminescence spectra at temperatures from . The mesa was driven at with a pulse width of at a constant voltage of . The position of the lasing spectrum at room temperature is also shown. The inset illustrates the corresponding FWHM as a function of the temperature.

Image of FIG. 2.
FIG. 2.

cw optical output power and voltage as a function of injection current at temperatures from for a high reflection coated, long, wide, buried heterostructure QCL mounted epilayer down on a diamond submount.

Image of FIG. 3.
FIG. 3.

Threshold current as a function of heat sink temperature for both pulsed (5% duty cycle) and cw operation. Exponential fit gives the characteristic temperatures of 127 and for the cw and pulsed mode, respectively.

Image of FIG. 4.
FIG. 4.

cw optical output power and voltage as a function of injection current at cryogenic temperatures from .

Image of FIG. 5.
FIG. 5.

cw WPE as a function of injection current at temperatures from .

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/content/aip/journal/apl/92/10/10.1063/1.2894569
2008-03-10
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Room temperature continuous wave operation of quantum cascade lasers with watt-level optical power
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/10/10.1063/1.2894569
10.1063/1.2894569
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