Speaker
Mr
Urban Senica
(Institute for Quantum Electronics, ETH Zurich)
Description
We present a planarized Y-coupled double metal waveguide THz quantum cascade laser. The low-area waveguide geometry is obtained via inverse design, and the device features broadband emission over 1 THz, a low threshold current, and frequency comb operation. Far-field measurements reveal characteristic interference patterns, a signature of equal power splitting and broadband phase locking of the two Y-coupled waveguide arms.
Primary authors
Mr
Urban Senica
(Institute for Quantum Electronics, ETH Zurich)
Tudor Olariu
(ETH Zurich)
Mr
Paolo Micheletti
(Institute for Quantum Electronics, ETH Zurich)
Mattias Beck
(ETH Zurich)
Jérôme Faist
(Institute for Quantum Electronics, ETH Zurich)
Giacomo Scalari
(Institute for Quantum Electronics, ETH Zurich)
