Observation of long turn-on delay in pulsed quantum cascade lasers
Optics
2022-04-06 v2 Mesoscale and Nanoscale Physics
Abstract
We present an experimental study of the turn-on delay in pulsed mid-infrared quantum cascade lasers. We report the unexpectedly long delay time depending on the pumping current, which does not agree with conventional theoretical predictions for step-like excitation. Similar behavior has been observed in InP- and InAs-based QCLs emitting near 8m. Numerical simulations performed using a model based on rate equations for excitation by current pulses with non-zero rise time provide fair agreement with our observations.
Keywords
Cite
@article{arxiv.2106.13658,
title = {Observation of long turn-on delay in pulsed quantum cascade lasers},
author = {E. D. Cherotchenko and V. V. Dudelev and D. A. Mikhailov and S. N. Losev and A. V. Babichev and A. G. Gladyshev and I. I. Novikov and A. V. Lutetskiy and D. A. Veselov and S. O. Slipchenko and N. A. Pikhtin and L. Ya. Karachinsky and D. V. Denisov and V. I. Kuchinskii and E. A. Kognovitskaya and A. Yu. Egorov and R. Teissier and A. N. Baranov and G. S. Sokolovskii},
journal= {arXiv preprint arXiv:2106.13658},
year = {2022}
}