Talks and Poster Presentations (with Proceedings-Entry):
B. Schwarz, J. Hillbrand, M. Piccardo, A. M. Andrews, H. Detz, H. Schneider, G. Strasser, F. Capasso:
"Picosecond pulses from an actively mode-locked quantum cascade laser";
Talk: SPIE Photonics West 2020,
San Francisco (invited);
2020-02-01
- 2020-02-06; in: "Proceedings Volume 11288, Quantum Sensing and Nano Electronics and Photonics XVII",
(2020),
Paper ID 11288-62,
1 pages.
English abstract:
The generation of short pulses with quantum cascade lasers (QCLs) remains challenging to date due to their ultrafast gain dynamics. Here, we report on active mode-locking of mid-infrared QCLs. For the first time we show, that picosecond pulses can be generated also at room-temperature using high-performance QCL material. Mounted epi-up, the QCLs emit a train of pulses as short as a 7ps with an average power of 100mW. The nonlinear autocorrelation shows reveals the famous 8:1 ratio, which proves unambiguously that the QCL operates in the mode-locked regime. This result is further verified using the beatnote spectroscopy technique SWITS.
"Official" electronic version of the publication (accessed through its Digital Object Identifier - DOI)
http://dx.doi.org/10.1117/12.2546465
Electronic version of the publication:
https://publik.tuwien.ac.at/files/publik_288496.pdf
Created from the Publication Database of the Vienna University of Technology.