GaAs/AlGaAs multiple-quantum-well in-line fiber intensity modulator
- 19 July 1999
- journal article
- conference paper
- Published by AIP Publishing in Applied Physics Letters
- Vol. 75 (3) , 310-312
- https://doi.org/10.1063/1.124359
Abstract
We demonstrate a GaAs/AlGaAs multiple-quantum-well in-line fiber optic intensity modulator. Based on evanescent wave coupling between a GaAs/AlGaAs multiple-quantum-well waveguide and a single-mode fiber, this device concept combines the inherent advantages of in-line fiber devices with high-speed GaAs integrated optoelectronics. The GaAs waveguide uses distributed Bragg mirror layers to phase match to the low-index fiber. Intensity modulation of the transmitted light through the fiber is achieved by tuning the effective propagation index of the GaAs waveguide via the quantum-confined Stark effect. Initial structures show a modulation contrast (ΔT/T) of more than 53%, with an applied voltage of 5 V.Keywords
This publication has 7 references indexed in Scilit:
- A gratingless wavelength stabilized semiconductor laserApplied Physics Letters, 1996
- Vertical cavity devices as wavelength selective waveguidesJournal of Lightwave Technology, 1994
- Polymeric modulator for high frequency optical interconnectsIEEE Photonics Technology Letters, 1994
- In-line fibre-optic intensity modulator using electro-optic polymerElectronics Letters, 1992
- All-fiber optic intensity modulators using liquid crystalsApplied Optics, 1991
- Computer modeling of the electric field dependent absorption spectrum of multiple quantum well materialIEEE Journal of Quantum Electronics, 1988
- Electric field dependence of optical absorption near the band gap of quantum-well structuresPhysical Review B, 1985