Asymmetric quantum wells with enhanced QCSE: modulation behaviour and application for integrated laser/modulator
- 1 February 1997
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 9 (2) , 191-193
- https://doi.org/10.1109/68.553087
Abstract
We have optimized asymmetric InGaAsP QWs with respect to the quantum confined Stark effect (QCSE). We have found structures with a red shift of 40 meV at a field of 70 kV/cm. Moreover, it was our aim to find structures with a strong blue shift. A new principle for the integration of a laser and a modulator is presented, which is based on the application of blue shift asymmetric QW's in the active layer for laser and modulator simultaneously. A calculation of the laser and modulation properties for a QW-structure with 27 meV blue shift at a field variation of 70 kV/cm is presented.Keywords
This publication has 9 references indexed in Scilit:
- Nearly chirp-free electroabsorption modulation using InGaAs-InGaAlAs-InAlAs coupled quantum wellsIEEE Photonics Technology Letters, 1995
- Electric-field dependence of optical absorption properties in coupled quantum wells and their application to 1.3 μm optical modulatorJournal of Applied Physics, 1995
- Very simple approach for high performance DFB laser-electroabsorptionmodulator monolithic integrationElectronics Letters, 1994
- Polarisation-insensitive modulators based on multistrainstepped quantum well structuresElectronics Letters, 1994
- Quantum-confined Stark shift for differently shaped quantum wellsSemiconductor Science and Technology, 1992
- Enhancement of change in the absorption coefficient in an asymmetric quantum wellApplied Physics Letters, 1992
- Heterojunction band offsets and effective masses in III-V quaternary alloysSemiconductor Science and Technology, 1991
- Enhancement of the Stark effect in coupled quantum wells for optical switching devicesIEEE Journal of Quantum Electronics, 1989
- Theory of the linewidth of semiconductor lasersIEEE Journal of Quantum Electronics, 1982