Journal article
Complex characterization of short-pulse propagation through InAs/InP quantum-dash optical amplifiers: From the quasi-linear to the two-photon-dominated regime
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. © 2011 Optical Society of America.
Language: | English |
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Year: | 2012 |
Pages: | 347-353 |
ISSN: | 10944087 |
Types: | Journal article |
DOI: | 10.1364/OE.20.000347 |
ORCIDs: | Yvind, Kresten |