Optical generation of linearly chirped microwave pulses using fiber Bragg gratings
| Autor: | S. Stepanov, A. Zeitouny, O. Levinson, Moshe Horowitz |
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| Rok vydání: | 2005 |
| Předmět: |
PHOSFOS
Materials science business.industry Bandwidth (signal processing) Physics::Optics Polarization-maintaining optical fiber Long-period fiber grating Graded-index fiber Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Broad spectrum Optics Fiber Bragg grating Fiber laser Chirp Dispersion-shifted fiber Optoelectronics Physics::Atomic Physics Electrical and Electronic Engineering business Electronic systems Frequency modulation Computer Science::Databases Microwave Photonic-crystal fiber |
| Zdroj: | IEEE Photonics Technology Letters. 17:660-662 |
| ISSN: | 1041-1135 |
| DOI: | 10.1109/lpt.2004.842349 |
| Popis: | We demonstrate a new method to generate broad spectrum chirped microwave pulses using an electrooptical system. Two fiber Bragg gratings and a mode-locked fiber laser were used to generate pulses with a linear frequency chirp. The bandwidth of the microwave pulses can be significantly broader than the bandwidth that can be obtained using electronic systems. The parameters of the chirp can be easily controlled by adjusting the parameters of the optical system. The same method can be used to generate microwave pulses with a complex frequency modulation. |
| Databáze: | OpenAIRE |
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