Recent progress in terahertz difference-frequency quantum cascade laser sources
Terahertz quantum cascade laser (QCL) sources based on intra-cavity difference frequency
generation are currently the only electrically pumped monolithic semiconductor light sources …
generation are currently the only electrically pumped monolithic semiconductor light sources …
Ultrafast pulse generation from quantum cascade lasers
Quantum cascade lasers (QCLs) have broken the spectral barriers of semiconductor lasers
and enabled a range of applications in the mid-infrared (MIR) and terahertz (THz) regimes …
and enabled a range of applications in the mid-infrared (MIR) and terahertz (THz) regimes …
High-efficiency, high-power mid-infrared quantum cascade lasers
D Botez, JD Kirch, C Boyle, KM Oresick… - Optical Materials …, 2018 - opg.optica.org
The step-taper active-region (STA) design concept is implemented for~ 5.0 μm-emitting
quantum cascade lasers (QCLs) grown by metal-organic chemical vapor deposition …
quantum cascade lasers (QCLs) grown by metal-organic chemical vapor deposition …
High-power mid-infrared (λ∼ 3-6 μm) quantum cascade lasers
The performances of mid-infrared (IR) quantum cascade lasers (QCLs) are now reaching a
maturity level that enables a variety of applications which require compact laser sources …
maturity level that enables a variety of applications which require compact laser sources …
Superconducting terahertz sources with 12% power efficiency
R Cattaneo, EA Borodianskyi, AA Kalenyuk… - Physical Review …, 2021 - APS
Low power efficiency is one of the main problems of terahertz (THz) sources, colloquially
known as “the THz gap.” In this work we present prototypes of THz devices based on …
known as “the THz gap.” In this work we present prototypes of THz devices based on …
Room temperature quantum cascade lasers with 22% wall plug efficiency in continuous-wave operation
We report the demonstration of quantum cascade lasers (QCLs) with improved efficiency
emitting at a wavelength of 4.9 µm in pulsed and continuous-wave (CW) operation. Based …
emitting at a wavelength of 4.9 µm in pulsed and continuous-wave (CW) operation. Based …
[HTML][HTML] Room temperature quantum cascade laser with∼ 31% wall-plug efficiency
In this article, we report the demonstration of a quantum cascade laser emitting at λ≈ 4.9 μm
with a wall-plug efficiency of∼ 31% and an output power of∼ 23 W in pulsed operation at …
with a wall-plug efficiency of∼ 31% and an output power of∼ 23 W in pulsed operation at …
High peak power quantum cascade lasers monolithically integrated onto silicon with high yield and good near-term reliability
E Cristobal, M Fetters, AWK Liu, JM Fastenau… - Applied Physics …, 2023 - pubs.aip.org
High peak power, room-temperature operation in the long wave infrared spectral region is
reported for double-channel, ridge waveguide quantum cascade lasers (QCLs) …
reported for double-channel, ridge waveguide quantum cascade lasers (QCLs) …
[HTML][HTML] Continuous wave quantum cascade lasers with 5.6 W output power at room temperature and 41% wall-plug efficiency in cryogenic operation
In this paper, we report a post-polishing technique to achieve nearly complete surface
planarization for the buried ridge regrowth processing of quantum cascade lasers. The …
planarization for the buried ridge regrowth processing of quantum cascade lasers. The …
Spectral purity and tunability of terahertz quantum cascade laser sources based on intracavity difference-frequency generation
Terahertz sources based on intracavity difference-frequency generation in mid-infrared
quantum cascade lasers (THz DFG-QCLs) have recently emerged as the first monolithic …
quantum cascade lasers (THz DFG-QCLs) have recently emerged as the first monolithic …