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Título: | Broadband Chaotic Signals and Breather Oscillations in an Optoelectronic Oscillator Incorporating a Microwave Photonic Filter |
Autor: | Romeira, Bruno; Kong, Fanqi; Li, Wangzhe; Figueiredo, José M.L.; Javaloyes, Julien CSIC ORCID; Yao, Jianping | Palabras clave: | Fiber bragg grating (FBG) microwave generation microwave photonics Nonlinear dynamics optoelectronic oscillator (OEO) phase modulation (PM) |
Fecha de publicación: | 25-feb-2014 | Editor: | Institute of Electrical and Electronics Engineers | Citación: | Journal of Lightwave Technology 32(20): 3933-3942 (2014) | Resumen: | We propose a technique to generate broadband chaotic and breather signals employing an optoelectronic oscillator (OEO) comprising a phase modulator (PM) and a linearly chirped fiber Bragg grating (LCFBG). The joint operation of the PM and the LCFBG forms a broadband microwave photonic filter (MPF), which allows the OEO to generate chaotic signals and breathers taking advantage of the interplay between the broadband MPF and the time-delayed feedback loop provided by a long optical fiber delay line. The breather excitations are characterized by nanosecond chaotic oscillations breathing periodically at a significantly lower time-scale determined by the OEO large delay time. A theoretical analysis based on a modified Ikeda time-delayed model to include the effect of the broadband filtering process is provided. The analysis is verified by an experiment. The proposed LCFBG-based OEO and the possibility to control in the optical domain its broadband bandpass characteristics considering the flexibility, accuracy, and precision in FBG fabrication can find applications in chaos-based communications and in fast optical processing systems, such as random number generation, or optical processing in reservoir computing taking advantage of the intrinsic multiple time scales of the LCFBG-based OEO. © 2012 IEEE. | Versión del editor: | http://dx.doi.org/10.1109/JLT.2014.2308261 | URI: | http://hdl.handle.net/10261/126282 | DOI: | 10.1109/JLT.2014.2308261 | Identificadores: | doi: 10.1109/JLT.2014.2308261 issn: 0733-8724 |
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