Optical FM-CW signal generation for a terahertz radar system by higher-order optical modulation

Atsushi Kanno, Norihiko Sekine, Yoshinori Uzawa, Iwao Hosako, Tetsuya Kawanishi

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    4 Citations (Scopus)

    Abstract

    In this paper, optical frequency-chirped signal generation using a high-order optical modulation technique is investigated. An optical frequency comb generator based on optical modulation is utilized as a frequency multiplier. Its multiplication factor of 12 allows designing a 300GHz terahertz-band radar system. An input signal at the central frequency of 25GHz with a chirp bandwidth of 1GHz, 2GHz, and 3GHz provides 6GHz, 12GHz, and 18GHz optical signals at 6th-order harmonics, respectively. A frequency separation of the +6th and -6th-order components is equal to 300 GHz, with a chirp bandwidth of 12GHz and 24GHz. The proposed technique can be used to design high-precision imaging systems.

    Original languageEnglish
    Title of host publicationProgress in Electromagnetics Research Symposium
    PublisherElectromagnetics Academy
    Pages2287-2291
    Number of pages5
    Volume2015-January
    ISBN (Print)9781934142301
    Publication statusPublished - 2015

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Electronic, Optical and Magnetic Materials

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  • Cite this

    Kanno, A., Sekine, N., Uzawa, Y., Hosako, I., & Kawanishi, T. (2015). Optical FM-CW signal generation for a terahertz radar system by higher-order optical modulation. In Progress in Electromagnetics Research Symposium (Vol. 2015-January, pp. 2287-2291). Electromagnetics Academy.