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2 μm laterally coupled distributed-feedback GaSb-based metamorphic laser grown on a GaAs substrate
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10.1063/1.4808265
/content/aip/journal/apl/102/23/10.1063/1.4808265
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/23/10.1063/1.4808265
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

HRXRD scan of the QW calibration structure, showing clear peaks for the GaAs substrate, metamorphic buffer and claddings, and superlattice fringes from the quantum wells.

Image of FIG. 2.
FIG. 2.

Cross-section scanning-electron micrograph of an LC-DFB laser. Inset (a) micrograph of etched waveguide gratings prior to SiN and BCB coating. Inset (b) transmission electron micrograph of the IMF array at the GaSb/GaAs interface. The bright and dark fringes are indicative of the regularly spaced dislocations.

Image of FIG. 3.
FIG. 3.

(a) The light-current-voltage plot of a LC-DFB laser operating CW at different heat-sink temperatures. The solid portions of the power curves indicate single-mode operation with a SMSR of at least 19 dB. (b) A representative output spectrum of a LC-DFB laser biased with 650 mA showing a single longitudinal mode operation with a SMSR of 25 dB.

Image of FIG. 4.
FIG. 4.

(a) Temperature variation of the lasing wavelength for the LC-DFB lasers. The inset shows the spectrum of laser at each temperature. (b) Emission wavelength shift as a function of drive current. The inset shows the spectrum of laser at each drive current.

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/content/aip/journal/apl/102/23/10.1063/1.4808265
2013-06-10
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: 2 <em>μ</em>m laterally coupled distributed-feedback GaSb-based metamorphic laser grown on a GaAs substrate
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/23/10.1063/1.4808265
10.1063/1.4808265
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