Title :
Pulsed high duty cycle operation of λ ˜ 8μm quantum cascade lasers
Author :
Ko, Tiffany ; Liu, Zhijun ; Gmachl, Claire
Author_Institution :
Department of Electrical Engineering, MIRTHE, and PRISM, Princeton University, NJ 08544, USA
Abstract :
We report on high duty-cycle pulsed and burst-mode operation of λ ˜ 8μm quantum cascade lasers under ambient conditions for photo-acoustic spectroscopy. An optimum in average optical power and efficiency is seen around 800kHz and 50% duty-cycle.
Keywords :
Chemical lasers; Frequency; Gas lasers; Laser tuning; Optical pulses; Power generation; Power lasers; Pulse generation; Quantum cascade lasers; Semiconductor laser arrays;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 2007. QELS '07
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
978-1-55752-834-6
DOI :
10.1109/QELS.2007.4431390
