JPL Technical Report Server

Browsing by Author "Qiu, Yueming"

Browsing by Author "Qiu, Yueming"

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  • Qiu, Yueming; Uhl, David; Keo, Sam (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2005., 2004-05-31)
    InAsSb quantum-dot lasers near 2 pm were demonstrated in cw operation at room temperature with a threshold current density of 733 A,/cm², output power of 3 mW/facet and a differential quantum efficiency of 13%.
  • Qiu, Yueming; Uhl, David; Keo, Sam (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2004, 2004-05-16)
    InAsSb quantum-dot lasers near 2 pm were demonstrated in cw operation at room temperature with a threshold current density of below 1 kA/cm, output power of 3 mW/facet and a differential quantum efficiency of 13%.
  • Yang, Rui Q.; Hill, Cory J.; Yang, Baohua; Qiu, Yueming; Jan, Darrell (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2006., 2006-02-08)
  • Liu, Duncan T.; Qiu, Yueming; Wilson, Daniel W.; Dubovitsky, Serge; Forouhar, Siamak (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2007., 2007-08-26)
    We propose and have demonstrated a prototype high-reliability pump module for pumping a Non-Planar Ring Oscillator (NPRO) laser suitable for space missions. The pump module consists of multiple fiber-coupled single-mode ...
  • Forouhar, Siamak; Soibel, Alexander; Frez, Clifford; Qiu, Yueming; Chen, J.; Hosoda, T.; Kipshidze, G.; Shterengas, L.; Tsvid, G.; Belenky, G.; Franz, Kale J.; Gmachl, Claire; Scherer, Benjamin (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2010, 2010-07-11)
    The air quality of any manned spacecraft needs to be continuously monitored in order to safeguard the health of the crew. Air quality monitoring grows in importance as mission duration increases. Due to the small size, low ...
  • Yang, Rui Q.; Hill, Cory J.; Qiu, Yueming (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2005., 2005-11-28)
    Efficient mid-IR interband cascade (IC) lasers are developed based on 111-V semiconductor materials to cover wavelength range from 2.7 to 5.6 μm. These IC lasers reuse injected electrons in cascade stages for photon ...
  • Gontijo, Ivair; Qiu, Yueming; Shapiro, Andrew A. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2008, 2008-09-01)
    A typical set up used to perform lifetime tests of packaged, fiber pigtailed semiconductor lasers is described, as well as tests performed on a set of four pump lasers. It was found that two lasers failed after 3200, and ...
  • Qiu, Yueming; Uhl, David (American Institute of Physics, 2004-03-01)
    Self-assembled InAsSb quantum dots (QD) on (001) InP substrates have been grown using metalorganic vapor phase epitaxy. The dot density and size are found to be strongly dependent on the presence of arsine. Direct deposition ...
  • Tratt, David M.; Mansour, Kamjou; Menzies, Robert T.; Qiu, Yueming; Forouhar, Siamak; Maker, Paul D.; Muller, Richard E. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2001, 2001-08-28)
    The NASA Earth Science Enterprise Advanced Technology Initiatives Program is supporting a program for the development of semiconductor laser reference oscillators for application to coherent optical remote sensing from ...