Title :
Intensity modulation of terahertz quantum cascade lasers under below-bandgap optical excitation
Author :
Sekine, Norihiko ; Hosako, Iwao
Author_Institution :
Nat. Inst. of Inf. & Commun. Technol., Tokyo, Japan
Abstract :
We have investigated the light-current characteristics of terahertz quantum cascade lasers using an external light whose energy is below the bandgap energy of the host material. It is found that light injection induces a large modulation depth, up to 100%.
Keywords :
millimetre wave lasers; quantum cascade lasers; below-bandgap optical excitation; intensity modulation; light injection; terahertz quantum cascade lasers; Intensity modulation; Materials; Photonic band gap; Photonics; Quantum cascade lasers; Waveguide lasers;
Conference_Titel :
Infrared Millimeter and Terahertz Waves (IRMMW-THz), 2010 35th International Conference on
Conference_Location :
Rome
Print_ISBN :
978-1-4244-6655-9
DOI :
10.1109/ICIMW.2010.5612631
