Mode-locked terahertz quantum cascade laser by direct phase synchronization

Journal Article · Wed Dec 04 00:00:00 EST 2013 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4848506· OSTI ID:22261915

Maussang, K.; Maysonnave, J.; Jukam, N.; Freeman, J. R.; Cavalié, P.; Dhillon, S. S.; Tignon, J. ^[1]; Khanna, S. P.; Linfield, E. H.; Davies, A. G. ^[2]; Beere, H. E.; Ritchie, D. A. ^[3]

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1. Laboratoire Pierre Aigrain, Ecole Normale Supérieure, CNRS (UMR 8551), Université P. et M. Curie, Université D. Diderot, 75005 Paris (France)
2. School of Electronic and Electrical Engineering, University of Leeds, Leeds LS9 2JT (United Kingdom)
3. University of Cambridge, Cavendish Lab, Cambridge CB3 0HE (United Kingdom)

Mode-locking of a terahertz quantum cascade laser is achieved using multimode injection seeding. Contrary to standard methods that rely on gain modulation, here a fixed phase relationship is directly imprinted to the laser modes. In this work, we demonstrate the generation of 9 ps phase mode-locked pulses around 2.75 THz. A direct measurement of the emitted field phase shows that it results from the phase of the initial injection.

• OSTI ID: 22261915
• Journal Information: AIP Conference Proceedings, Vol. 1566, Issue 1; Conference: ICPS 2012: 31. international conference on the physics of semiconductors, Zurich (Switzerland), 29 Jul - 3 Aug 2012; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
EMISSION
LASERS
MODE LOCKING
PULSES
SYNCHRONIZATION