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학술대회 Optically Generated Sub-THz Continuous Wave using 3rd order Double Sideband-Suppressed Carriers (DSB-SCs)
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저자
김성일, 강승범, 곽민환, 강광용
발행일
201005
출처
International Microwave Symposium (IMS) 2010, pp.340-343
DOI
https://dx.doi.org/10.1109/MWSYM.2010.5514683
협약과제
10MB1400, THz파 발진 변환 검출기 및 신호원, 강광용
초록
An optically generated sub-THz continuous wave (CW) using feed backed 3rd order double sideband suppressed carrier (DSB-SC) is proposed to realize a source of THz communication systems. In this paper, we have generated 3rd order optical harmonics using a 20 GHz microwave local oscillator. We have increased the 3rd order optical harmonics using our proposed optical feedback scheme. Then, they are photomixed by a photomixer for generating the sub-THz CW signals. Comparing with conventional DSB-SC, the amplitude of the 3rd order optical harmonics and the photomixed output power have improved about 15 dB and 25 dB, respectively. Consequently, the proposed technique is very useful for generating sub-THz CW signals using low frequency local oscillators. © 2010 IEEE.
키워드
Continuous wave (CW), Double sideband-suppressed carrier (DSB-SC), Optical feedback, Sub-THz
KSP 제안 키워드
3rd order, CW signals, Communication system, Local Oscillator, Output power, Sub-THz, THz communications, continuous wave(CW), double sideband suppressed carrier(DSB-SC), low-frequency, optical feedback