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A quantum cascade laser emitting in the spectral range of 9.7 μm at 77 K has been developed. The laser heterostructure based on GaAs/AlGaAs was grown by the MOCVD technology. In the pulsed operation mode, the threshold current density of ∼2 kA/cm2 and the emission power of above 200 mW have been obtained for the laser of the dimensions of 30 μm × 3 mm.
The paper presents application results for high-frequency Doppler radar system SeaSonde™ by CODAR Ocean Sensors meant for measurement of surface currents in Kara Sea water areas from ship board. The developed measurement guidelines enabled collecting on-line data on currents structure in the area featuring high variability of hydrometeorological parameters. The obtained data ensure assessment of quantitative...
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