Prospects for further threshold reduction in bistable microresonators
| Autor: | B. G. Sfez, J. C. Michel, J.L. Oudar, R. Planel, R. Kuszelewicz |
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| Rok vydání: | 1992 |
| Předmět: |
Materials science
Bistability business.industry Physics::Optics Nonlinear optics Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention Nonlinear system Optics law Optical cavity Nonlinear medium Miniaturization Wafer Electrical and Electronic Engineering business Quantum well |
| Zdroj: | Optical and Quantum Electronics. 24:S193-S207 |
| ISSN: | 1572-817X 0306-8919 |
| DOI: | 10.1007/bf00625824 |
| Popis: | We discuss recent results showing the possibility of reducing further the switching threshold of GaAs quantum well bistable microresonators, taking into account the materials optical properties, both in the nonlinear medium and in the Bragg reflectors, as well as their departure from ideality, due to fabrication constraints. Threshold minimization in the presence of nonlinear index saturation is discussed, and the implications of this optimization on the geometrical design of bistable cavities are described. We present a new topographic technique for the assessment of the cavity resonance at various sample points. This technique is found to be very valuable for the characterization of the optical quality of epitaxial wafers grown for vertical cavity devices. Finally, we present some new approaches for the restriction of the lateral size of the device, and discuss the ultimate threshold reductions that can be expected from these considerations. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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