A photonic approach to microwave/millimeter-wave frequency measurement with extended range based on phase modulation

Xuiyou Han; Nuannuan Shi; Siteng Zhang; Meng Wang; Yiying Gu; Mingshan Zhao

doi:10.1117/12.999355

5 December 2012 A photonic approach to microwave/millimeter-wave frequency measurement with extended range based on phase modulation

Xuiyou Han, Nuannuan Shi, Siteng Zhang, Meng Wang, Yiying Gu, Mingshan Zhao

Author Affiliations +

Proceedings Volume 8562, Infrared, Millimeter-Wave, and Terahertz Technologies II; 85620H (2012) https://doi.org/10.1117/12.999355
Event: Photonics Asia, 2012, Beijing, China

Abstract

Instantaneous frequency measurement (IFM) of input unknown microwave signals is critical importance for modern radar warning receivers in the field of electronic warfare. The photonic techniques have attracted more and more attentions for IFM due to the advantages of wide bandwidth, low loss, light weight, and immunity to electromagnetic interference. In this paper, a photonic approach to IFM with extended range based on phase modulation is presented. In the proposed measurement system, two optical wavelengths and two segment dispersion fibers are used to construct the frequency-dependent amplitude comparison functions (ACFs). Several ACFs can be jointly utilized to determine the microwave frequency without ambiguities beyond a monotonic region of the conventional one ACF. Then the measurable range of microwave frequency can be extended and the accuracy can be improved by selection of ACF with large slope. The operation principle of the photonic approach is illustrated and the experiment results show that the errors are limited within ±0.15 GHz from 8 to 20GHz frequency measurement range.

Citation Download Citation

Xuiyou Han, Nuannuan Shi, Siteng Zhang, Meng Wang, Yiying Gu, and Mingshan Zhao "A photonic approach to microwave/millimeter-wave frequency measurement with extended range based on phase modulation", Proc. SPIE 8562, Infrared, Millimeter-Wave, and Terahertz Technologies II, 85620H (5 December 2012); https://doi.org/10.1117/12.999355

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KEYWORDS

Microwave radiation

Optical fibers

Phase modulation

Signal detection

Dispersion

Palladium

Microwave photonics

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