A continuously tunable and filterless optical millimeter-wave generation via frequency octupling.
This work proposes a cost-effective, continuously tunable and filterless optical millimeter-wave (MMW) signal generation employing frequency octupling. Optical MMW signals with 30-dB undesired sideband suppression ratios can be obtained. Since no optical filtering is required, the proposed system can be readily implemented in wavelength-division-multiplexing (WDM) systems. V-band 60-GHz and W-band 80-GHz optical MMW signals are experimentally demonstrated. Because of the high undesired sideband suppression ratio, 60-GHz waveform with 50% duty cycle is observed. The single-sideband (SSB) phase noise of the generated 60-GHz signal is -73 dBc/Hz at 10 kHz. The proposed system is a viable solution for the future ultra-high frequency MMW applications up to 320 GHz using the external modulator with a limited bandwidth of 40 GHz.
Lin
Chun-Ting
CT
Institute of Photonic System, National Chiao-Tung University,Tainan Taiwan 711, ROC.
Shih
Po-Tsung
PT
Jiang
Wen-Jr
WJ
Chen
Jason Jyehong
JJ
Peng
Peng-Chun
PC
Chi
Sien
S
D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005374:Filtration; D008872:Microwaves; D055096:Optical Devices; D012031:Refractometry / Q000295:instrumentation*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013685:Telecommunications / Q000295:instrumentation*