Quantum cascade laser frequency combs
It was recently demonstrated that broadband quantum cascade lasers can operate as
frequency combs. As such, they operate under direct electrical pumping at both mid-infrared …
frequency combs. As such, they operate under direct electrical pumping at both mid-infrared …
Frequency comb generation by Bloch gain induced giant Kerr nonlinearity
Optical nonlinearities are known to coherently couple amplitude and phase of light, which
can result in the formation of periodic waveforms. Such waveforms are referred to as optical …
can result in the formation of periodic waveforms. Such waveforms are referred to as optical …
Tunable, grating‐gated, graphene‐on‐polyimide terahertz modulators
An electrically switchable graphene terahertz (THz) modulator with a tunable‐by‐design
optical bandwidth is presented and it is exploited to compensate the cavity dispersion of a …
optical bandwidth is presented and it is exploited to compensate the cavity dispersion of a …
[HTML][HTML] Mid-infrared dual-comb spectroscopy with quantum cascade lasers
Since its invention in 1994, the quantum cascade laser (QCL) has emerged as a versatile
light source of wavelength 4–12 µm, covering most of the mid-and long-wavelength infrared …
light source of wavelength 4–12 µm, covering most of the mid-and long-wavelength infrared …
Graphene‐coupled terahertz semiconductor lasers for enhanced passive frequency comb operation
Optical frequency combs, consisting of well‐controlled equidistant frequency lines, have
been widely used in precision spectroscopy and metrology. Terahertz combs have been …
been widely used in precision spectroscopy and metrology. Terahertz combs have been …
Engineering the spectral bandwidth of quantum cascade laser frequency combs
Quantum cascade lasers (QCLs) facilitate compact optical frequency comb sources that
operate in the mid-infrared and terahertz spectral regions, where many molecules have their …
operate in the mid-infrared and terahertz spectral regions, where many molecules have their …
Tunable and compact dispersion compensation of broadband THz quantum cascade laser frequency combs
Miniaturized frequency combs (FCs) can be self-generated at terahertz (THz) frequencies
through four-wave mixing in the cavity of a quantum cascade laser (QCL). To date, however …
through four-wave mixing in the cavity of a quantum cascade laser (QCL). To date, however …
[HTML][HTML] Frequency combs induced by optical feedback and harmonic order tunability in quantum cascade lasers
This study investigates the interaction between frequency combs and optical feedback
effects in Quantum Cascade Lasers (QCLs). The theoretical analysis reveals new …
effects in Quantum Cascade Lasers (QCLs). The theoretical analysis reveals new …
Picosecond pulses from a mid-infrared interband cascade laser
The generation of mid-infrared pulses in monolithic and electrically pumped devices is of
great interest for mobile spectroscopic instruments. The gain dynamics of interband cascade …
great interest for mobile spectroscopic instruments. The gain dynamics of interband cascade …
Gapless tuning of quantum cascade laser frequency combs with external cavity optical feedback
We present the operation of quantum cascade laser frequency combs in an external cavity
configuration. Experimental observations show dependence of comb repetition rate and …
configuration. Experimental observations show dependence of comb repetition rate and …