• DocumentCode
    3862904
  • Title

    Terahertz pulse generation from quantum cascade lasers

  • Author

    F. Wang;K. Maussang;S. Moumdji;R. Colombelli;J. R. Freeman;I. Kundu;L. Li;E. H. Linfield;A. G. Davies;J. Mangeney;J. Tignon;S. S. Dhillon

  • Author_Institution
    Laboratoire Pierre Aigrain, Ecole Normale Supé
  • fYear
    2015
  • Firstpage
    1
  • Lastpage
    1
  • Abstract
    We demonstrate the generation of 11ps terahertz pulses from metal-metal (MM) quantum cascade lasers (QCLs) at 77K via active mode-locking. Contrary to popular belief that a long gain recovery time is required, we demonstrate that the dominant factor necessary for active pulse generation is in fact the synchronization between the propagating electronic microwave modulation and the generated THz pulses in the QCL. This allows the THz pulse to propagate in phase with the microwave modulation along the gain medium, permitting pulse generation.
  • Keywords
    "Quantum cascade lasers","Pulse generation","Microwave propagation","Electric fields","Masers","Phase modulation"
  • 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.2015.7327685
  • Filename
    7327685
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3862904