Symmetric highly efficient (/spl sim/0 dB) wavelength conversion based on four-wave mixing in quantum dot optical amplifiers
- 7 November 2002
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 14 (8) , 1139-1141
- https://doi.org/10.1109/lpt.2002.1021995
Abstract
Conversion efficiency to longer wavelengths in four-wave-mixing-based wavelength conversion in optical semiconductor amplifiers is generally much lower than that in the opposite direction. This study demonstrates experimentally that this feature is drastically improved, and the asymmetry between conversion directions is eliminated by using quantum dots in the active layer. We attribute this to a reduction in linewidth enhancement factor due to the discreteness of the electron states in quantum dots.Keywords
This publication has 6 references indexed in Scilit:
- Nonlinear processes responsible for nondegenerate four-wave mixing in quantum-dot optical amplifiersApplied Physics Letters, 2000
- Molecular beam epitaxial growth of InAs self-assembled quantum dots with light-emission at 1.3μmJournal of Crystal Growth, 1999
- THz frequency conversionusing nondegenerate four-wave mixing processin a lasing long-cavity λ/4-shifted DFB laserElectronics Letters, 1995
- Terahertz four-wave mixing spectroscopy for study of ultrafast dynamics in a semiconductor optical amplifierApplied Physics Letters, 1993
- Observation of highly nondegenerate four-wave mixing in 1.5 mu m traveling-wave semiconductor optical amplifiers and estimation of nonlinear gain coefficientIEEE Journal of Quantum Electronics, 1992
- Population pulsations and nondegenerate four-wave mixing in semiconductor lasers and amplifiersJournal of the Optical Society of America B, 1988