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We have proposed a cost-effective sub-terahertz (THz) continuous wave (CW) generation scheme based on a usual double sideband-suppressed carrier (DSB-SC) scheme. The usual DSB-SC scheme, which consists of a discrete optical source, an optical intensity modulator (OIM), a local oscillator (LO), an optical notch filter, and an erbium doped fiber amplifier (EDFA), is one of well-known photonic-based...
A sub-THz continuous wave (CW) generator based on photonics without an optical source is proposed to make an oscillator within sub-THz frequency bands. Comparing with a conventional sub-THz generator based on photonics with the optical source such as double sideband suppressed carriers, we have generated the optical sidebands separated with a wanted sub-THz frequency and photomixed them to make the...
An optically generated sub-THz continuous wave (CW) using feedbacked 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...
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