TY - GEN
T1 - Ultrafast response of Harmonic Modelocked THz Lasers
AU - Pistore, Valentino
AU - Wang, F.
AU - Riesch, M.
AU - Nong, H.
AU - Vigneron, P. B.
AU - Colombelli, R.
AU - Parillaud, O.
AU - Mangeney, J.
AU - Tignon, J.
AU - Jirauschek, C.
AU - Dhillon, S.
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/11/8
Y1 - 2020/11/8
N2 - Harmonic modelocking of lasers is usually employed to attain high repetition rates. Despite the favourable dynamics of THz quantum cascade lasers (QCLs), harmonic active modelocking has not been demonstrated. In this work, using ultrafast time resolved spectroscopy, we present the first demonstrations of active modelocking performed at the fundamental and second harmonic on metal-metal THz QCL. We will also show that in certain cases, QCLs can spontaneously attain self-starting harmonic behaviour up to the 15th harmonic through self-microwave generation, which highlights the electronic and photonic nature of these devices.
AB - Harmonic modelocking of lasers is usually employed to attain high repetition rates. Despite the favourable dynamics of THz quantum cascade lasers (QCLs), harmonic active modelocking has not been demonstrated. In this work, using ultrafast time resolved spectroscopy, we present the first demonstrations of active modelocking performed at the fundamental and second harmonic on metal-metal THz QCL. We will also show that in certain cases, QCLs can spontaneously attain self-starting harmonic behaviour up to the 15th harmonic through self-microwave generation, which highlights the electronic and photonic nature of these devices.
UR - http://www.scopus.com/inward/record.url?scp=85103226057&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85103226057&partnerID=8YFLogxK
U2 - 10.1109/IRMMW-THz46771.2020.9370794
DO - 10.1109/IRMMW-THz46771.2020.9370794
M3 - Conference contribution
AN - SCOPUS:85103226057
T3 - International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz
SP - 377
BT - 2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2020
PB - IEEE Computer Society
T2 - 45th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2020
Y2 - 8 November 2020 through 13 November 2020
ER -