Optoelectronic feedback on a laser diode is demonstrated to generate two distinct modes of periodic pulse-train formation depending the injection current $J$ leading microwave combs in regimes. For close threshold notation="LaTeX">$J_...

The dynamic behavior of the light output from aluminum-free 980nm ridge waveguide GaInAs/GaInAsP/GaInP pump lasers is studied in the high power regime on a picosecond time scale. Three types of the temporal evolution of the turn-on emission dynamics measured by a single-shot streak-camera can be distinguished in the near field, according to the injection current. First, at moderate pumping, the...

Retroviral genetic rearrangements can result from reverse transcriptase template switching. Most published data suggest that errors such as base misincorporation occur at similar frequencies for HIV-1 and for simple retroviruses such as spleen necrosis virus (SNV) and murine leukemia virus (MuLV). However, previous reports have suggested that template switch-mediated recombination is much more ...

Simulating the transient behavior of switching power converter circuits is computationally expensive because these circuits are clocked at a frequency whose period is orders of magnitude smaller than the time interval of interest to the designer. It is possible to reduce the simulation time without compromising much accuracy by exploiting the property that the behavior of switching converters i...