In our theoretical model, deformations of the Fermi surface in the modulated state enlarge the phase space available for low-energy particle–hole fluctuations and this self-consistently lowers the ...

Directly modulated semiconductor lasers represent a crucial technology in modern optical communications, where the injection current is directly varied to encode information onto the laser output.

High-speed analog-to-digital converters (ADCs) and digital-to-analog converters (DACs) typically are characterized using continuous wave (CW) signals. There are several reasons for this practice: 1) ...