Phase-Coded Millimeter-Wave Waveform Generation Using a Spatially Discrete Chirped Fiber Bragg Grating

Wang, Chao and Yao, Jianping (2012) Phase-Coded Millimeter-Wave Waveform Generation Using a Spatially Discrete Chirped Fiber Bragg Grating. IEEE Photonics Technology Letters, 24 (17). pp. 1493-1495. ISSN 1041-1135. (doi:https://doi.org/10.1109/LPT.2012.2206580) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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Official URL
http://dx.doi.org/10.1109/LPT.2012.2206580

Abstract

An all-optical approach to generating phase-coded millimeter-wave (mm-wave) waveforms based on optical pulse shaping, using a spatially discrete chirped fiber Bragg grating (SD-CFBG) is proposed and experimentally demonstrated. Since no electro-optical modulator is used, the system is simpler and less costly. In the proposed system, the spectrum of an optical pulse is spectrally sliced by a sinusoidal comb filter. The SD-CFBG is then used as a special dispersive element to map the shaped spectrum to a temporal waveform based on dispersive Fourier transform, and at the same time, to introduce the desired time delay jumps, which are translated to phase shifts. A simplified system without using the comb filter is also studied, in which a single SD-CFBG is employed to simultaneously perform spectral slicing, frequency-to-time mapping, and temporal coding. The proposed technique is validated by two experiments in which two phase-coded mm-wave waveforms at 28.5 GHz and 47.2 GHz with, respectively, a 7-bit and 11-bit Barker code are generated.

Item Type: Article
Uncontrolled keywords: INSPEC: CONTROLLED INDEXING Bragg gratings Fourier transform optics optical fibre filters optical pulse generation optical pulse shaping INSPEC: NON CONTROLLED INDEXING Barker code dispersive Fourier transform dispersive element frequency 28.5 GHz frequency 47.2 GHz frequency-to-time mapping optical pulse shaping phase-coded millimeter-wave waveform generation sinusoidal comb filter spatially discrete chirped fiber Bragg grating spectral slicing temporal coding temporal waveform time delay jumps AUTHOR KEYWORDS Dispersion fiber Bragg grating (FBG) microwave photonics optical pulse shaping phase coding radar
Subjects: T Technology
Divisions: Faculties > Sciences > School of Engineering and Digital Arts
Faculties > Sciences > School of Engineering and Digital Arts > Broadband & Wireless Communications
Depositing User: Tina Thompson
Date Deposited: 21 Oct 2013 11:22 UTC
Last Modified: 25 Oct 2013 10:48 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/35552 (The current URI for this page, for reference purposes)
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