DocumentCode :
599686
Title :
Short pulse dynamics in quantum cascade lasers
Author :
Ahmed, Arif ; Hassan, O. ; Sohel, Md S. H. ; Hayee, F. ; Faria, Rafael ; Talukder, Muhammad Anisuzzaman
Author_Institution :
Dept. of Electr. & Electron. Eng., Bangladesh Univ. of Eng. & Technol., Dhaka, Bangladesh
fYear :
2012
fDate :
20-22 Dec. 2012
Firstpage :
389
Lastpage :
392
Abstract :
Since the first ever demonstration of the quantum cascade lasers (QCLs) in 1994, there has been extensive research on its improvement for various reasons. One of them is to produce ultrashort optical pulses. The nonlinearity in the index of refraction of a lasing medium can be manipulated to produce ultrashort laser pulses which have applications in the communication field, IC technology and even in surgical procedures. In this paper, we have modeled this dependency and have found that the pulse duration significantly increases in time when the pulse pulse intensity increases; however, the pulse duration significantly decreases in time when the pulse intensity increases.
Keywords :
laser beams; nonlinear optics; optical pulse generation; quantum cascade lasers; refractive index; IC technology; QCL; lasing medium; nonlinearity; pulse duration; pulse intensity; quantum cascade lasers; refractive index; ultrashort optical pulse dynamics; Nonlinear Index of Refraction; Pulse Duration; Quantum Cascade Laser; Spatial Pulsewidth;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electrical & Computer Engineering (ICECE), 2012 7th International Conference on
Conference_Location :
Dhaka
Print_ISBN :
978-1-4673-1434-3
Type :
conf
DOI :
10.1109/ICECE.2012.6471569
Filename :
6471569
Link To Document :
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