An optical filter based on carrier nonlinearities for optical RF channelizing and spectrum analysis
| Autor: | D. Tishinin, William H. Steier, S. Dubovitsky, P.D. Dapkus, K. Uppal, J.P. Burger |
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| Rok vydání: | 2001 |
| Předmět: |
Materials science
Sideband Spatial filter Condensed Matter::Other business.industry Amplifier Nonlinear optics Filter (signal processing) Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Condensed Matter::Materials Science Optics Optoelectronics Radio frequency Electrical and Electronic Engineering business Optical filter Photonic crystal |
| Zdroj: | IEEE Photonics Technology Letters. 13:224-226 |
| ISSN: | 1941-0174 1041-1135 |
| DOI: | 10.1109/68.914328 |
| Popis: | We experimentally demonstrate filtering based on the finite time response of the interband carrier nonlinearities in a direct bandgap semiconductor. The filter is implemented in a mixed strain polarization insensitive multiple-quantum-well, broad-area semiconductor amplifier. The key to the filter implementation is the separation of a four-wave mixing generated sideband from the linearly amplified inputs based on spatial filtering. Both spectrum analysis and channelizing of RF modulated optical carriers are demonstrated. |
| Databáze: | OpenAIRE |
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