Picosecond pulses from a mid-infrared interband cascade laser
Applied Physics
2021-01-01 v1 Optics
Abstract
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 lasers (ICL) are promising for mode-locked operation at low threshold currents. Here, we present conclusive evidence for the generation of picosecond pulses in ICLs via active mode-locking. At small modulation power, the ICL operates in a linearly chirped frequency comb regime characterized by strong frequency modulation. Upon increasing the modulation amplitude, the chirp decreases until broad pulses are formed. Careful tuning of the modulation frequency minimizes the remaining chirp and leads to the generation of 3.2 ps pulses.
Keywords
Cite
@article{arxiv.1907.00346,
title = {Picosecond pulses from a mid-infrared interband cascade laser},
author = {Johannes Hillbrand and Maximilian Beiser and Aaron Maxwell Andrews and Hermann Detz and Robert Weih and Anne Schade and Sven Höfling and Gottfried Strasser and Benedikt Schwarz},
journal= {arXiv preprint arXiv:1907.00346},
year = {2021}
}