title: Generation of frequency-modulated sub-terahertz signal using microwave photonic technique.
abstract: We present a photonic technique for generating a frequency- modulated sub-terahertz signal for non-destructive or noninvasive sensing and imaging applications. Large frequency deviation was achieved by using optical phase modulation and heterodyne photomixing with an uni-travelling photodetector. The operation principle is theoretically derived and explained. In addition, the generation of 350-GHz frequency- modulated sub-terahertz signal with 6.7-GHz frequency deviation is experimentally demonstrated, and the possibility of frequencies up to 1 THz and wider frequency deviations is discussed.
authors: Microsystem Integration Laborotories, NTT Corporation, 3-1 Morinosato Wakamiya, Atsugi-shi, Kanagawa Pref., 243-0198, Japan. hjsong@aecl.ntt.co.jp
authors: Ho-Jin
authors: HJ
authors: Song
authors: Kyoung-Hwan
authors: KH
authors: Oh
authors: Naofumi
authors: N
authors: Shimizu
authors: Naoya
authors: N
authors: Kukutsu
authors: Yuichi
authors: Y
authors: Kado