Title :
High-Spectral-Purity Millimeter-Wave Signal Optical Generation
Author :
Wang, Tianliang ; Chen, Hongwei ; Chen, Minghua ; Zhang, Jian ; Xie, Shizhong
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
fDate :
6/15/2009 12:00:00 AM
Abstract :
In this paper, novel approaches for millimeter-wave signal generation using double-sideband suppressed-carrier modulation and four-wave mixing are proposed and demonstrated. The millimeter-wave signal is generated at a photodetector by beating the optical sidebands, which are gained from intensity modulation and after semiconductor optical amplifiers. In the proposed methods, the generated millimeter-wave signal has a frequency that is double, quadruple, sextuple, 12 times, or even 18 times higher than the microwave drive signal. And, it has quite good gain flatness with extremely high-spectral-purity and stability. The phase noise performance of the generated millimeter wave is investigated. The 3-dB linewidth of the millimeter wave has no broadening after propagating through 20-km standard single-mode fiber.
Keywords :
intensity modulation; laser beams; microwave photonics; millimetre wave generation; multiwave mixing; optical fibre communication; optical modulation; optical transmitters; photodetectors; semiconductor optical amplifiers; distance 20 km; double-sideband suppressed-carrier modulation; four-wave mixing; high-spectral-purity; intensity modulation; millimeter-wave signal optical generation; photodetector; semiconductor optical amplifier; single-mode fiber; Double-sideband suppressed-carrier modulation; electrical phase shifter; four-wave mixing; millimeter wave; optical intensity modulator; semiconductor optical amplifier;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2008.2006631
