Frequency noise of free-running 4.6 um distributed feedback quantum cascade lasers near room temperature
Lionel Tombez, Joab Di Francesco, Stephane Schilt, Gianni Di Domenico, J. Faist, Pierre Thomann & Daniel Hofstetter
| Résumé |
The frequency noise properties of commercial distributed feedback
quantum cascade lasers emitting in the 4.6 um range and operated in
cw mode near room temperature (277K) are presented. The measured
frequency noise power spectral density reveals a flicker noise
dropping down to the very low level of <100 Hz2/Hz at 10 MHz
Fourier frequency and is globally a factor of 100 lower than data
recently reported for a similar laser operated at cryogenic
temperature. This makes our laser a good candidate for the
realization of a mid-IR ultranarrow linewidth reference. |
| Mots-clés |
Fluctuations, relaxations, and noise; Linewidth;Semiconductor lasers, quantum cascade |
| Citation | Tombez, L., Di Francesco, J., Schilt, S., Di Domenico, G., Faist, J., Thomann, P., & Hofstetter, D. (2011). Frequency noise of free-running 4.6 um distributed feedback quantum cascade lasers near room temperature. Optics Letters, 36(16), 3109-3111. |
| Type | Article de périodique (Anglais) |
| Date de publication | 10-8-2011 |
| Nom du périodique | Optics Letters |
| Volume | 36 |
| Numéro | 16 |
| Pages | 3109-3111 |
| URL | http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-1... |
| Liée au projet | Fundamental metrology with laser-cooled atoms and optical... |