Title :
Widely tunable high-power external cavity quantum cascade laser operating in continuous-wave at room temperature
Author :
Maulini, R. ; Dunayevskiy, I. ; Lyakh, Arkadiy ; Tsekoun, Alexei ; Patel, C. Kumar N. ; Diehl, L. ; Pflugl, C. ; Capasso, Federico
Author_Institution :
Pranalytica, Inc., Santa Monica, CA
Abstract :
A grating-coupled external cavity quantum cascade laser operating in continuous-wave at room temperature is reported. Single-frequency operation tunable over more than 160 cm-1 around the centre wavelength of 4.6 mum has been observed at a chip temperature of 300 K. The maximum optical power at the gain peak was 300 mW, corresponding to a wall-plug efficiency of 6 %. Observed power output at the gain bandwidth edges was in excess of 125 mW.
Keywords :
laser cavity resonators; laser tuning; quantum cascade lasers; continuous wave operation; grating-coupled external cavity quantum cascade laser; power 300 mW; single-frequency operation; temperature 293 K to 298 K; temperature 300 K; tunable high-power external cavity quantum cascade laser; wavelength 4.6 mum;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20093057
