TY - GEN
T1 - The nonlinear absorption and phase recovery of quantum dot based reverse-biased waveguide electro-absorbers
AU - Piwonski, T.
AU - Pulka, J.
AU - Madden, G.
AU - Houlihan, J.
AU - Huyet, G.
AU - Viktorov, E. A.
AU - Erneux, T.
AU - Mandel, P.
PY - 2010
Y1 - 2010
N2 - The physics of quantum dot based optical devices has been studied intensively due to their interesting blend of atomic and solid state properties. Recently, attention has been focused on their absorption properties and has led to QD materials finding favour in such applications as monolithic mode-locked lasers, electro-absorption modulators and saturable absorber mirrors. In this study we perform a detailed experimental investigation of the ultrafast absorption and phase dynamics of a QD InAs/GaAs structure under reverse bias conditions using single colour pump-probe measurements. Experimental results reveal the fundamental timescales and underlying dynamical processes occurring in such absorbers. We will also consider the impact of the observed absorption and phase dynamics on some current applications of QD absorbers.
AB - The physics of quantum dot based optical devices has been studied intensively due to their interesting blend of atomic and solid state properties. Recently, attention has been focused on their absorption properties and has led to QD materials finding favour in such applications as monolithic mode-locked lasers, electro-absorption modulators and saturable absorber mirrors. In this study we perform a detailed experimental investigation of the ultrafast absorption and phase dynamics of a QD InAs/GaAs structure under reverse bias conditions using single colour pump-probe measurements. Experimental results reveal the fundamental timescales and underlying dynamical processes occurring in such absorbers. We will also consider the impact of the observed absorption and phase dynamics on some current applications of QD absorbers.
KW - Absorption recovery dynamics
KW - Pump-probe spectroscopy
KW - Quantum dot
KW - Semiconductor electro-absorbers
UR - http://www.scopus.com/inward/record.url?scp=77957279735&partnerID=8YFLogxK
U2 - 10.1109/ICTON.2010.5549021
DO - 10.1109/ICTON.2010.5549021
M3 - Conference contribution
AN - SCOPUS:77957279735
SN - 9781424477975
T3 - 2010 12th International Conference on Transparent Optical Networks, ICTON 2010
BT - 2010 12th International Conference on Transparent Optical Networks, ICTON 2010
T2 - 2010 12th International Conference on Transparent Optical Networks, ICTON 2010
Y2 - 27 June 2010 through 1 July 2010
ER -