• DocumentCode
    3691325
  • Title

    Double-pulse injection seeding of a terahertz quantum cascade laser

  • Author

    Sergej Markmann;Hanond Nong;Shovon Pal;Negar Hekmat;Sven Scholz;Nadezhda Kukharchyk;Arne Ludwig;Sukhdeep Dhillon;Jérôme Tignon;Xavier Marcadet;Claudia Bock;Ulrich Kunze;Andreas D. Wieck;Nathan Jukam

  • Author_Institution
    AG Terahertz Spectroscopy and Technology, Ruhr University Bochum, D-44780 Bochum, Germany
  • fYear
    2015
  • Firstpage
    1
  • Lastpage
    2
  • Abstract
    Double-pulse injection seeding is used to modify the spectral emission of a terahertz quantum cascade laser (THz QCL). Two broad-band THz pulses delayed in time imprint a modulation on the single THz pulse spectrum. The resulting seed enables modification of the QCL emission spectrum, even though, the spectral bandwidth of each THz pulse is much broader than the QCL gain bandwidth. For a proper time delay between the pulses, the seeded THz QCL emission can even be switched from a multimode to a single mode regime.
  • Keywords
    "Quantum cascade lasers","Broadband communication","Broadband antennas","Laser beams","Delay effects","Measurement by laser beam"
  • 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.2015.7327478
  • Filename
    7327478
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3691325