• DocumentCode
    3691665
  • Title

    Performance evaluation of phase-locking for THz-QCL

  • Author

    Yoshihisa Irimajiri;Motohiro Kumagai;Isao Morohashi;Akira Kawakami;Shigeo Nagano;Norihiko Sekine;Satoshi Ochiai;Shukichi Tanaka;Yuko Hanado;Yoshinori Uzawa;Iwao Hosako

  • Author_Institution
    NICT: National Institute of Information and Communications Technology, Tokyo, Japan
  • fYear
    2015
  • Firstpage
    1
  • Lastpage
    2
  • Abstract
    We are developing a low noise superconducting heterodyne receiver based on a hot electron bolometer mixer (HEBM) and a THz Quantum Cascade Laser (THz-QCL) as a local oscillator at 3THz for atmospheric and astronomical observations. The best value of the uncorrected receiver noise temperature of 1,200 K (DSB) which corresponds to 8 times quantum limit was achieved. We demonstrated phase-locking of a 3 THz-QCL using the HEBM and evaluated its performance.
  • Keywords
    "Quantum cascade lasers","Frequency measurement","Mixers","Harmonic analysis","Receivers","Phase locked loops","Yttrium"
  • Publisher
    ieee
  • Conference_Titel
    Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2015 40th International Conference on
  • ISSN
    2162-2027
  • Electronic_ISBN
    2162-2035
  • Type

    conf

  • DOI
    10.1109/IRMMW-THz.2015.7327923
  • Filename
    7327923
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3691665