Title :
High-Speed Control of Lightwave Amplitude, Phase, and Frequency by Use of Electrooptic Effect
Author :
Kawanishi, Tetsuya ; Sakamoto, Takahide ; Izutsu, Masayuki
Author_Institution :
Nat. Inst. of Inf. & Commun. Technol., Tokyo
Abstract :
High-speed control of lightwave using electrooptic (EO) effect is investigated in this paper. Agile optical frequency shift can be achieved by optical single-sideband (SSB) and frequency-shift-keying (FSK) modulators, where high-speed optical phase-shift-keying (PSK) signals can also be generated by using FSK/SSB modulators. We also describe ultrahigh extinction ratio optical intensity modulation (IM) technique for two-tone lightwave signals with high spurious suppression, which is useful for photonic microwave and millimeter-wave generation. In addition, we investigated high-order optical sideband generation techniques: quadruple dual-sideband suppressed carrier (QDSB-SC) modulation and reciprocating optical modulation (ROM). Sub-tetrahertz signals can be obtained from lightwaves with high-order sidebands
Keywords :
electro-optical effects; electro-optical modulation; frequency shift keying; intensity modulation; microwave photonics; optical communication equipment; optical fibre communication; phase shift keying; electrooptic effect; extinction ratio; frequency-shift-keying modulator; intensity modulation; lightwave control; optical phase-shift-keying; optical single-sideband modulator; quadruple dual-sideband suppressed carrier modulation; reciprocating optical modulation; spurious suppression; Amplitude modulation; Electrooptic effects; Electrooptic modulators; Frequency shift keying; High speed optical techniques; Lighting control; Optical modulation; Phase modulation; Phase shift keying; Signal generators; Amplitude; frequency; microwave; millimeter wave; optical modulation; phase; sideband;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2006.889044
