The hybrid architecture of the interband cascade laser (ICL) combines the interband active
transitions of a conventional diode laser with the multiple active stages of a quantum …

We report experimental demonstration of tunable, monolithic, single-mode quantum
cascade lasers (QCLs) at∼ 10 μm with a two-section etched slot structure. A single-mode …

In this work, we present GaInAs/AlAs/AlInAs quantum cascade lasers emitting from 3.2 to 3.4
μm. Single-mode emission is obtained using buried distributed-feedback gratings fabricated …

We present a quantum transport simulation of a 4.6-μ m quantum cascade laser (QCL)
operating at high power near room temperature. The simulation is based on a rigorous …

Depressed cladding optical waveguides have been fabricated in a zinc sulfide (ZnS) crystal
by femtosecond laser inscription. The structures support single-or multi-mode guidance at …

A type-II (with broken bandgap) W-shaped nano-heterostructure having layers combination
of AlSb, InAs and GaAsSb compound semiconductors has been proposed which can be …

Terahertz quantum cascade lasers incorporating lattice-matched quaternary AlInGaAs
barriers grown by molecular beam epitaxy on InP substrate are reported. Four quantum well …

This work reports on up to 2.9 μm lasing at 230 K of InP-based type-I quantum well lasers.
This record long wavelength lasing is achieved by applying InP-based Sb-free structures …

This chapter reviews the fundamental physics and associated limitations of semiconductor
lasers operating across the mid-infrared (MIR) range of 2–20 μm. Using a combination of …

Terahertz quantum cascade laser sources based on intra-cavity Cherenkov difference-
frequency generation in dual-wavelength mid-infrared quantum cascade lasers are currently …