Title :
Tuning Efficiency and Modulation Speed of Epi-Up and Epidown Mounted Distributed Feedback Quantum Cascade Laser
Author :
Feng Xie ; Caneau, Catherine ; Chaparala, Satish ; Leblanc, Herve P. ; Ming-Tsung Ho ; Coleman, Sonya ; Hughes, Lawrence C. ; Chung-en Zah
Author_Institution :
Corning Inc., Corning, NY, USA
Abstract :
We demonstrated a wide CW wavelength tuning range of 18 cm-1 for an epi-up mounted distributed feedback (DFB) quantum cascade laser (QCL) around 4.5 m, via current change. The wavelength tuning coefficient of an epi-up mounted DFB QCL is about 2.2 times of that of an epi-down mounted one. The 3dB modulation bandwidths of an epi-up and an epi-down mounted DFB QCLs are 15 kHz and 400 kHz, respectively.
Keywords :
distributed feedback lasers; laser tuning; optical modulation; quantum cascade lasers; CW wavelength tuning range; bandwidth 15 kHz; bandwidth 400 kHz; current change; epi-down mounted DFB QCL; epi-down mounted distributed feedback quantum cascade laser; epi-up mounted DFB QCL; epi-up mounted distributed feedback quantum cascade laser; modulation bandwidth; modulation speed; tuning efficiency; wavelength tuning coefficient; Frequency modulation; Laser tuning; Quantum cascade lasers; Temperature measurement;
Conference_Titel :
Semiconductor Laser Conference (ISLC), 2014 International
Conference_Location :
Palma de Mallorca
Print_ISBN :
978-1-4799-5721-7
DOI :
10.1109/ISLC.2014.153
