Title :
Millimeter-Wave Signal Generation Using Two Cascaded Optical Modulators and FWM Effect in Semiconductor Optical Amplifier
Author :
Wang, Tianliang ; Chen, Minghua ; Chen, Hongwei ; Zhang, Jian ; Xie, Shizhong
Author_Institution :
Tsinghua Univ., Beijing
Abstract :
A novel method of optical generation millimeter-wave (mm-wave) signals employing two cascaded optical modulators and four-wave-mixing effect in semiconductor optical amplifiers is proposed. This approach is capable of generating signals of four times, eight times, and 12 times microwave source frequency with high spectral purity and stability. A mm-wave of 42 GHz (12times fundamental) with a 3-dB linewidth less than 30 Hz and a phase noise less than 83 dBc/Hz at 10-kHz offset is obtained.
Keywords :
intensity modulation; microwave photonics; millimetre wave generation; multiwave mixing; optical harmonic generation; optical modulation; phase noise; semiconductor optical amplifiers; submillimetre wave generation; FWM effect; cascaded optical modulators; four-wave-mixing effect; frequency 10 kHz; frequency 42 GHz; microwave source frequency; millimeter-wave signal generation; optical generation; phase noise; semiconductor optical amplifier; spectral stability; Intensity modulation; Microwave generation; Nonlinear optics; Optical mixing; Optical modulation; Optical pumping; Phase modulation; Semiconductor optical amplifiers; Signal generators; Stimulated emission; Four-wave mixing (FWM); intensity modulator; millimeter-wave (mm-wave); semiconductor optical amplifier (SOA);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2007.901494
