Title :
Strong picosecond optical pulse propagation in semiconductor optical amplifiers at transparency
Author :
Tang, J.M. ; Shore, K.A.
Author_Institution :
Sch. of Electron. Eng. & Comput. Syst., Univ. of Wales, Bangor, UK
fDate :
7/1/1998 12:00:00 AM
Abstract :
The propagation of strong picosecond optical pulses in semiconductor optical amplifiers (SOAs) is investigated numerically by taking into account carrier heating, spectral hole-burning, and two-photon absorption, as well as ultrafast nonlinear refraction. Very good agreement with published experimental results are observed in both the time and frequency domains. It is shown that the effects of two-photon absorption and ultrafast nonlinear refraction are very important in determining the output pulse properties for pulse energy larger than 1 pJ
Keywords :
high-speed optical techniques; laser theory; light propagation; light refraction; optical hole burning; semiconductor device models; semiconductor lasers; transparency; two-photon processes; 1 pJ; carrier heating; frequency domains; output pulse properties; pulse energy; semiconductor optical amplifiers; spectral hole-burning; strong picosecond optical pulse propagation; time domains; transparency; two-photon absorption; ultrafast nonlinear refraction; Absorption; Heating; Optical amplifiers; Optical propagation; Optical pulses; Optical refraction; Pulse amplifiers; Semiconductor optical amplifiers; Signal to noise ratio; Stimulated emission;
Journal_Title :
Quantum Electronics, IEEE Journal of
