TY - JOUR
T1 - Gain and noise saturation of wide-band InAs-InP quantum dash optical amplifiers
T2 - Model and experiments
AU - Hadass, D.
AU - Bilenca, A.
AU - Alizon, R.
AU - Dery, H.
AU - Mikhelashvili, V.
AU - Eisenstein, G.
AU - Schwertberger, R.
AU - Somers, A.
AU - Reithmaier, J. P.
AU - Forchel, A.
AU - Calligaro, M.
AU - Bansropun, S.
AU - Krakowski, M.
N1 - Funding Information:
Manuscript received September 28, 2004. This work was supported by the EC through the BigBand project of the IST. D. Hadass, A. Bilenca, R. Alizon, H. Dery, V. Mikhelashvili, and G. Eisenstein are with the Electrical Engineering Department, Technion, Haifa 32000, Israel (e-mail: [email protected]). R. Schwertberger, A. Somers, J. P. Reithmaier, and A. Forchel are with the Technische Physik, Universitat Wurzburg, Wurzburg 97074, Germany (e-mail: [email protected]). M. Calligaro, S. Bansropun, and M. Krakowski are with Thales Research and Technology, Orsay 91404, France (e-mail: michel.krakowski@thalesgroup. com). Digital Object Identifier 10.1109/JSTQE.2005.853740
PY - 2005/9/1
Y1 - 2005/9/1
N2 - We present a theoretical model for gain and noise saturation in quantum dash (QDash) semiconductor optical amplifiers. The model is based on the density matrix formalism and addresses static saturation spectra. The calculations are confirmed by a series of experiments which highlight the unique properties of these amplifiers. We demonstrate a high gain, a wide bandwidth, and high saturation power. The saturation spectrum is shown to be asymmetric, emphasizing saturation at short wavelength. The asymmetry stems from the high energy tail of the density of state function in those quantum wire (QWire) like gain media as well as from the interactions with the wetting layer.
AB - We present a theoretical model for gain and noise saturation in quantum dash (QDash) semiconductor optical amplifiers. The model is based on the density matrix formalism and addresses static saturation spectra. The calculations are confirmed by a series of experiments which highlight the unique properties of these amplifiers. We demonstrate a high gain, a wide bandwidth, and high saturation power. The saturation spectrum is shown to be asymmetric, emphasizing saturation at short wavelength. The asymmetry stems from the high energy tail of the density of state function in those quantum wire (QWire) like gain media as well as from the interactions with the wetting layer.
KW - Density matrix formalism
KW - Density of state function
KW - Gain saturation
KW - InAs-InP quantum dash optical amplifiers
KW - Noise saturation
KW - Quantum wirelike gain media
KW - Saturation spectrum
KW - Static saturation spectra
KW - Wide-band optical amplifiers
UR - http://www.scopus.com/inward/record.url?scp=31644446692&partnerID=8YFLogxK
U2 - 10.1109/JSTQE.2005.853740
DO - 10.1109/JSTQE.2005.853740
M3 - Article
AN - SCOPUS:31644446692
SN - 1077-260X
VL - 11
SP - 1015
EP - 1026
JO - IEEE Journal of Selected Topics in Quantum Electronics
JF - IEEE Journal of Selected Topics in Quantum Electronics
IS - 5
ER -