Microwave photonic beamforming system with broadband chirped fiber Bragg grating

Sergey I. Ivanov; Alexander P. Lavrov; Igor I. Saenko; Sergey A. Bessoltsev; Alexander V. Dostovalov; Alexey A. Wolf

doi:10.1117/12.2318086

6 June 2018 Microwave photonic beamforming system with broadband chirped fiber Bragg grating

Sergey I. Ivanov, Alexander P. Lavrov , Igor I. Saenko, Sergey A. Bessoltsev, Alexander V. Dostovalov, Alexey A. Wolf

Proceedings Volume 10774, Optical Technologies in Telecommunications 2017; 107740W (2018) https://doi.org/10.1117/12.2318086
Event: XV International Scientific and Technical Conference on Optical Technologies in Telecommunications, 2017, Kazan, Russian Federation

Abstract

The results of the development of a 6-channel microwave photonic beamforming system (BFS) for phased array antenna in receiving mode are presented. BFS incorporate DWDM technology based components of analogue fiber-optic transmission links with external modulation in RF range 0.1-18 GHz and specially manufactured chirped fiber Bragg grating. A number of BFS transmitters have six optical carriers separated with 100 GHz step (ITU grid, DWDM standard in C-band). The beamforming is realized by introducing inter-channel time delays when microwave modulated optical carriers interact with chirped fiber Bragg grating (СFBG) in reflection mode, throughout the total operating spectral range of 6-channel BFS (6x100 GHz). The used СFBG has 2 cm length. The results of measuring the S-parameters of BFS 6 channels are given, which enable to synthesize the far-field pattern of the phased array antenna with photonic BFS under investigation. Far-field patterns of four channel linear phased antenna array integrated with photonic beamformer model have been measured and compared with calculated patterns taking into account amplitude and phase errors arising in beamformer channels.

Citation Download Citation

Sergey I. Ivanov, Alexander P. Lavrov , Igor I. Saenko, Sergey A. Bessoltsev, Alexander V. Dostovalov, and Alexey A. Wolf "Microwave photonic beamforming system with broadband chirped fiber Bragg grating", Proc. SPIE 10774, Optical Technologies in Telecommunications 2017, 107740W (6 June 2018); https://doi.org/10.1117/12.2318086

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