TY - JOUR
T1 - Complex characterization of short-pulse propagation through InAs/InP quantum-dash optical amplifiers
T2 - From the quasi-linear to the two-photon-dominated regime
AU - Capua, Amir
AU - Saal, Abigael
AU - Karni, Ouri
AU - Eisenstein, Gadi
AU - Reithmaier, Johann Peter
AU - Yvind, Kresten
PY - 2012/1/2
Y1 - 2012/1/2
N2 - We describe direct measurements at a high temporal resolution of the changes experienced by the phase and amplitude of an ultra-short pulse upon propagation through an inhomogenously broadened semiconductor nanostructured optical gain medium. Using a cross frequency-resolved optical gating technique, we analyze 150 fs-wide pulses propagating along an InP based quantum dash optical amplifier in both the quasi-linear and saturated regimes. For very large electrical and optical excitations, a second, trailing peak is generated and enhanced by a unique two-photon-induced amplification process.
AB - We describe direct measurements at a high temporal resolution of the changes experienced by the phase and amplitude of an ultra-short pulse upon propagation through an inhomogenously broadened semiconductor nanostructured optical gain medium. Using a cross frequency-resolved optical gating technique, we analyze 150 fs-wide pulses propagating along an InP based quantum dash optical amplifier in both the quasi-linear and saturated regimes. For very large electrical and optical excitations, a second, trailing peak is generated and enhanced by a unique two-photon-induced amplification process.
UR - http://www.scopus.com/inward/record.url?scp=84855458222&partnerID=8YFLogxK
U2 - 10.1364/OE.20.000347
DO - 10.1364/OE.20.000347
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C2 - 22274358
AN - SCOPUS:84855458222
SN - 1094-4087
VL - 20
SP - A347-A353
JO - Optics Express
JF - Optics Express
IS - 1
ER -