Gain Dynamics in Quantum-Dot Semiconductor Optical Amplifiers at 1550 nm

We report an experimental study of the gain recovery of an InAs-InGaAsP-InP columnar-quantum-dot semiconductor optical amplifier around 1550 nm. We find a three-step recovery process that gives around 85% gain recovery in only 10 ps and 100% in around 30 ps in case of a quite complete gain saturatio...

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Bibliographic Details
Published inIEEE photonics technology letters Vol. 22; no. 13; pp. 987 - 989
Main Authors Contestabile, G, Maruta, A, Kitayama, K
Format Journal Article
LanguageEnglish
Published New York IEEE 01.07.2010
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Amplification
Bandwidth
Conferences
Dynamics
Fiber optics
Gain
Gain dynamics
High speed optical techniques
Optical fiber polarization
Optical fibers
Optical filters
Optical pulse generation
Optical saturation
Optical waveguides
Packaging
quantum dot (QD)
Quantum dots
Qunatum dots
Recovery
semiconductor optical amplifier (SOA)
Semiconductor optical amplifiers
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Summary:We report an experimental study of the gain recovery of an InAs-InGaAsP-InP columnar-quantum-dot semiconductor optical amplifier around 1550 nm. We find a three-step recovery process that gives around 85% gain recovery in only 10 ps and 100% in around 30 ps in case of a quite complete gain saturation. We also give a possible physical explanation for the peculiar gain dynamics.
Bibliography:ObjectType-Article-2
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SourceType-Conference Papers & Proceedings-2
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2010.2047852