Browsing by Author "Radovanovi?, Jelena"

Analytical expression for Risken-Nummedal-Graham-Haken instability threshold in quantum cascade lasers

Vukovic, Nikola; Radovanovi?, Jelena; Milanovic, Vitomir; Boiko, Dmitri L. (2016-11-14)

We have obtained a closed-form expression for the threshold of Risken-Nummedal-Graham-Haken (RNGH) multimode instability in a Fabry-Pérot (FP) cavity quantum cascade laser (QCL). This simple analytical expression ...

Determination of RNGH Round-trip Gain in QCLs

Vukovi?, Nikola; Radovanovi?, Jelena; Milanovi?, Vitomir; Boiko, Dmitri L. (2016)

Exploring the relation between Risken–Nummedal–Graham–Haken instabilities and conditions for superradiance in a quantum cascade laser

Vukovi?, Nikola; Radovanovi?, Jelena; Milanovi?, Vitomir; Boiko, Dmitri L. (2014)

Influence of Carrier Diffusion on RNGH Instabilities in Semiconductor Lasers

Vukovi?, Nikola; Radovanovi?, Jelena; Milanovic, Vitomir; Boiko, Dmitri L. (2015)

Low-Threshold RNGH Instabilities in Quantum Cascade Lasers

Vukovi?, Nikola N.; Radovanovi?, Jelena; Milanovi?, Vitomir; Boiko, Dmitri L. (2017-11)

We show that low-threshold Risken-Nummedal-Graham-Haken (RNGH) instabilities in quantum cascade lasers (QCLs) occur due to a combined effect of the carrier coherence and population grating induced in the gain medium. QCLs ...

Self-pulsations in QCLs

Vukovi?, Nikola; Radovanovi?, Jelena; Milanovi?, Vitomir; Boiko, Dmitri L. (2016)

The Role of Carrier Diffusion in RNGH Instabilities of Quantum Cascade Lasers

Vukovi?, Nikola N.; Radovanovi?, Jelena; Milanovi?, Vitomir; Boiko, Dmitri L. (2015)