Talks and Poster Presentations (without Proceedings-Entry):
B. Hinkov, J. Hayden, R. Szedlak, P. Martin-Mateos, B Jerez, P. Acedo, B. Lendl, G. Strasser:
"Modulation characteristics of surface-emitting ring DFB quantum cascade lasers";
Talk: SPIE Photonics West 2020,
San Francisco;
2020-02-01
- 2020-02-06.
English abstract:
The fast modulation characteristics of quantum cascade lasers (QCLs) up to the MHz-/GHz-range give insight into their dynamical properties and act as prerequisite for experiments like injection locking of mid-infrared frequency-combs or spectroscopic measurements. In this paper we present the first analysis of the optical high-frequency modulation characteristics of surface-emitting mid-IR DFB-ring QCLs up to 160 MHz. We compare them to DFB-ridge QCLs from the same gain material and show the existence of the (quasi-)single-sideband regime, a special FM-state in QCLs, not present in regular diode-lasers. Surface-emitting ring-QCLs are particularly relevant with their potential in array integration and monolithic laser-detector-schemes.
Electronic version of the publication:
https://publik.tuwien.ac.at/files/publik_288468.pdf
Created from the Publication Database of the Vienna University of Technology.