Continuously tunable coherent pulse generation in a semiconductor laser
Urban Senica, Michael A Schreiber, Marco Raffa, Paolo Micheletti, Mattias Beck, Christian Jirauschek, Jérôme Faist, Giacomo Scalari · 2026
Read Continuously tunable coherent pulse generation in a semiconductor laser by Urban Senica, Michael A Schreiber, Marco Raffa, Paolo Micheletti, Mattias Beck, Christian Jirauschek, Jérôme Faist, Giacomo Scalari (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-13661238.txt.
Description
Urban Senica and co-authors build a laser whose pulses can be tuned without pause in a 2026 paper. In a normal laser, the size of the light cavity fixes the pulse rate, leaving gaps in the colors it can emit. Changing the rate usually means rebuilding the device, which limits its use in science and industry.
The team drives a chip-scale semiconductor laser with a microwave signal that shapes gain along the whole cavity. That drive sets the speed of pulses inside, so the repeat rate slides smoothly from four to sixteen billion pulses per second. The output forms a frequency comb whose tooth spacing tunes just as smoothly. The result points toward fully tunable lasers and combs on a single chip.
Catalog record
| CREATOR | Urban Senica, Michael A Schreiber, Marco Raffa, Paolo Micheletti, Mattias Beck, Christian Jirauschek, Jérôme Faist, Giacomo Scalari |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 64 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |