상세정보
학술대회
Optically Generated Sub-THz Continuous Wave using 3rd order Double Sideband-Suppressed Carriers (DSB-SCs)
- 발행일
- 201005
- 출처
- International Microwave Symposium (IMS) 2010, pp.340-343
- 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.
- KSP 제안 키워드
- 3rd order, CW signals, Communication system, Double-sideband(DSB), Local Oscillator, Output power, Sub-THz, THz communications, continuous wave(CW), double sideband suppressed carrier(DSB-SC), low-frequency