PhotonIcs and Electromagnetics Research Symposium,
also known as Progress In Electromagnetics Research Symposium
PIERS Proceedings
PIER Journals
Published by The Electromagnetics Academy
Published: 2015-07-09
Optical FM-CW Signal Generation for a Terahertz Radar System by Higher-order Optical Modulation
By
Iwao Hosako,
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    Iwao Hosako

    National Institute of Information and Communications Technology, Japan

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Atsushi Kanno,
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    Atsushi Kanno

    Nagoya Institute of Technology, Japan

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Tetsuya Kawanishi,
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    Tetsuya Kawanishi

    Waseda University, Japan

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Norihiko Sekine,
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    Norihiko Sekine

    National Institute of Information and Communications Technology, Japan

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Yoshinori Uzawa
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    Yoshinori Uzawa

    National Institute of Information and Communications Technology, Japan

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Proceedings of 2015 Photonics & Electromagnetics Research Symposium, Prague, July 6 - 9，Page(s)2287-2291
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 300 GHz terahertz-band radar system. An input signal at the central frequency of 25 GHz with a chirp bandwidth of 1 GHz, 2 GHz, and 3 GHz provides 6 GHz, 12 GHz, and 18 GHz 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 12 GHz and 24 GHz. The proposed technique can be used to design high-precision imaging systems.
Citation
Iwao Hosako, Atsushi Kanno, Tetsuya Kawanishi, Norihiko Sekine, and Yoshinori Uzawa, "Optical FM-CW Signal Generation for a Terahertz Radar System by Higher-order Optical Modulation," Proceedings of 2015 Photonics & Electromagnetics Research Symposium, Prague, July 6 - 9，Page(s)2287-2291
References

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