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Título: | High-speed 1.55 μm operation of low-temperature-grown GaAs-based resonant-cavity-enhanced p–i–n photodiodes |
Autor: | Butun, B.; Biyikli, N.; Kimukin, I.; Aytur, O.; Ozbay, E.; Postigo, Pablo Aitor CSIC ORCID; Silveira, Juan Pedro CSIC; Alija, Alfonso R. | Palabras clave: | Gallium arsenide Aluminium compounds Photodiodes Performance evaluation Design Mirrors |
Fecha de publicación: | 24-may-2004 | Editor: | American Institute of Physics | Citación: | Applied Physics Letters 84, 4185 (2004) | Resumen: | We report the design, growth, fabrication, and characterization of GaAs-based high-speed p–i–n photodiodes operating at 1.55 μm. A low-temperature-grown GaAs (LT-GaAs) layer was used as the absorption layer and the photoresponse was selectively enhanced at 1.55 μm using a resonant-cavity-detector structure. The bottom mirror of the resonant cavity was formed by a highly reflecting 15-pair GaAs/AlAs Bragg mirror. Molecular-beam epitaxy was used for wafer growth, where the active LT-GaAs layer was grown at a substrate temperature of 200 °C. The fabricated devices exhibited a resonance around 1548 nm. When compared to the efficiency of a conventional single-pass detector, an enhancement factor of 7.5 was achieved. Temporal pulse-response measurements were carried out at 1.55 μm. Fast pulse responses with 30 ps pulse-width and a corresponding 3 dB bandwidth of 11.2 GHz was measured. | Versión del editor: | http://dx.doi.org/10.1063/1.1756208 | URI: | http://hdl.handle.net/10261/23894 | DOI: | 10.1063/1.1756208 | ISSN: | 0003-6951 |
Aparece en las colecciones: | (IMN-CNM) Artículos |
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Butun, B. et al Appl.Phys.Lett._84_2004.pdf | 404,9 kB | Adobe PDF | Visualizar/Abrir |
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