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Titel:

Passive and hybrid mode locking in multi-section terahertz quantum cascade lasers

Dokumenttyp:
Zeitschriftenaufsatz
Autor(en):
Tzenov, P.; Babushkin, I.; Arkhipov, R.; Arkhipov, M.; Rosanov, N.N.; Morgner, U.; Jirauschek, C.
Abstract:
It is believed that passive mode locking is virtually impossible in quantum cascade lasers (QCLs) because of too fast carrier relaxation time. Here, we revisit this possibility and theoretically show that stable mode locking and pulse durations in the few cycle regime at terahertz (THz) frequencies are possible in suitably engineered bound-to-continuum QCLs. We achieve this by utilizing a multi-section cavity geometry with alternating gain and absorber sections. The critical ingredients are the...     »
Zeitschriftentitel:
New J. Phys. 20, 053055 2018-04
Jahr:
2018
Jahr / Monat:
2018-04
Quartal:
2. Quartal
Monat:
Apr
Sprache:
en
Volltext / DOI:
doi:10.1088/1367-2630/aac12a
WWW:
http://iopscience.iop.org/article/10.1088/1367-2630/aac12a/meta
Verlag / Institution:
IOP Publishing
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