Toward High Performance Broad-band Frequency Comb Operation of Terahertz Quantum Cascade Lasers

C Xu - 2017 - uwspace.uwaterloo.ca
Recent advances in Terahertz Quantum Cascade Laser (THz QCL) development are
pushing this technology ever closer to practical application, particularly within the …

Heterogeneous terahertz quantum cascade lasers exceeding 1.9 THz spectral bandwidth and featuring dual comb operation

M Rösch, M Beck, MJ Süess, D Bachmann… - …, 2018 - degruyter.com
We report on a heterogeneous active region design for terahertz quantum cascade laser
based frequency combs. Dynamic range, spectral bandwidth and output power have been …

Direct observation of terahertz frequency comb generation in difference-frequency quantum cascade lasers

L Consolino, M Nafa, M De Regis, F Cappelli… - Applied Sciences, 2021 - mdpi.com
Terahertz quantum cascade laser sources based on intra-cavity difference frequency
generation from mid-IR devices are an important asset for applications in rotational …

Pulse generation and spectral optimization of broadband terahertz quantum cascade lasers

D Bachmann, M Rösch, G Scalari… - … and Terahertz waves …, 2016 - ieeexplore.ieee.org
By introducing side-absorbers to metal-metal waveguides of broadband terahertz quantum
cascade lasers, we are able to control and completely suppress higher-order lateral …

Analysis of operating regimes of terahertz quantum cascade laser frequency combs

P Tzenov, D Burghoff, Q Hu… - IEEE Transactions on …, 2017 - ieeexplore.ieee.org
In recent years, quantum cascade lasers (QCLs) have shown tremendous potential for the
generation of frequency combs in the mid-infrared and terahertz portions of the …

Homogeneous quantum cascade lasers operating as terahertz frequency combs over their entire operational regime

A Di Gaspare, L Viti, HE Beere, DD Ritchie… - …, 2020 - degruyter.com
We report a homogeneous quantum cascade laser (QCL) emitting at terahertz (THz)
frequencies, with a total spectral emission of about 0.6 THz, centered around 3.3 THz, a …

High dynamic range, heterogeneous, terahertz quantum cascade lasers featuring thermally tunable frequency comb operation over a broad current range

K Garrasi, FP Mezzapesa, L Salemi, L Li… - ACS …, 2018 - ACS Publications
We report on the engineering of broadband quantum cascade lasers (QCLs) emitting at
Terahertz (THz) frequencies, which exploit a heterogeneous active region scheme and have …

Broadband terahertz photonics

DP Burghoff - 2014 - dspace.mit.edu
In recent years, quantum cascade lasers have emerged as mature semiconductor sources of
light in the terahertz range, the frequency range spanning 1 to 10 THz. Though technological …

High-performance Frequency Combs with Planarized THz Quantum Cascade Lasers

U Senica, A Forrer, T Olariu, P Micheletti… - … Conference on Lasers …, 2023 - opg.optica.org
Terahertz (THz) quantum cascade lasers (QCLs) are compact sources of coherent THz
radiation which can also operate as frequency combs [1], making them appealing for …

Achieving comb formation over the entire lasing range of quantum cascade lasers

Y Yang, D Burghoff, J Reno, Q Hu - Optics Letters, 2017 - opg.optica.org
Frequency combs based on quantum cascade lasers (QCLs) are finding promising
applications in high-speed broadband spectroscopy in the terahertz regime, where many …