High-temperature HgTe/CdTe multiple-quantum-well lasers

Temperature Effect on THz Quantum Cascade Lasers

A simple semi-phenomenological model, which accurately predicts the dependence of thresholdcurrent for temperature of Resonant-phonon three well quantum cascade laser based on verticaltransitions is offered. We found that, the longitude optical phonon scattering of thermally excitedelectrons is the most important limiting factor for thermal performance of high frequency THz QCLs.In low frequenc...

Design and Room-Temperature Operation of GaAs/AlGaAs Multiple Quantum Well Nanowire Lasers.

We present the design and room-temperature lasing characteristics of single nanowires containing coaxial GaAs/AlGaAs multiple quantum well (MQW) active regions. The TE01 mode, which has a doughnut-shaped intensity profile and is polarized predominantly in-plane to the MQWs, is predicted to lase in these nanowire heterostructures and is thus chosen for the cavity design. Through gain and loss ca...

Emission wavelength of AlGaAsGaAs multiple quantum well lasers

Chapter 2 Nonlinear Dynamics of Multiple Quantum Well Lasers

Low dimensional structures have come a long way from being mere examples of applied quantum mechanics tv widespread applications in many modem devices and instruments. Quantum well, quantum cascade and quantum dot lasers make use of the very fundamental idea of carrier confinement within dimenswns that match their de Broglie wavelength. Quantum well lasers are used in many modern optoelectronic...

Subpicosecond monolithic colliding-pulse mode-locked multiple quantum well lasers

Generation of short optical pulses with semiconductor laser diodes is important for high bit rate time-division multiplexed communication systems, ultrafast data processing, and picosecond optoelectronic applications. Because the pulse shaping mechanisms are determined by the saturation and recovery time of the gain and absorber sections in mode-locked lasers,’ it is possible to generate short ...