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High power, continuous wave, quantum cascade ring laser
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DOI：10.1063/1.3672049.png)
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We demonstrate a quantum cascade ring laser with high power room temperature continuous wave operation. A second order distributed feedback grating buried inside the waveguide provides both in-plane feedback and vertical power outcoupling. Total output power reaches 0.51 W at an emission wavelength around 4.85 mu m. Single mode operation persists up to 0.4 W. The far field analysis indicates that the device operates in a high order mode. The magnetic and electric components of the ring-shaped lasing beam are in radial and azimuthal directions, respectively. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3672049]
Keyword:
SEMICONDUCTOR-LASERS
PERFORMANCE
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3.6
论文数:
10.4W
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17.8W
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