Title :
Photonic generation of ultrawideband doublet pulse based on cross-absorption modulation in an electroabsorption modulator
Author :
Li, Mo ; Dong, Wei ; Zhou, Jingran ; Liu, Caixia ; Zhang, Xindong ; Ruan, Shengping ; Chen, Weiyou
Author_Institution :
State Key Lab. on Integrated Optoelectron., Jilin Univ., Changchun, China
Abstract :
We propose and demonstrate a new approach to generate optical ultrawideband (UWB) doublet pulse by using cross-absorption modulation (XAM) in an electroabsorption modulator (EAM). when launching continuous-wave (CW) probe light and signal pulse into an electroabsorption modulator to take part in cross-absorption modulation, the probe light is modulated by the signal pulse and the polarity is reversed. The combination of the output probe light and the time delayed signal pulse with proper power control can produce UWB doublet pulse. The UWB doublet pulse generated in the experiment with the center frequency, 10-dB bandwidth, and the fractional bandwidth conforms to the FCC UWB definition.
Keywords :
delays; electro-optical modulation; electroabsorption; optical control; optical pulse generation; power control; ultra wideband technology; continuous-wave probe light; cross-absorption modulation; electroabsorption modulator; fractional bandwidth; photonic generation; power control; time delayed signal pulse; ultrawideband doublet pulse generation; Frequency modulation; Lasers; Monitoring; Optical polarization; Optical pulses; Radio frequency; Tin; cross-absorption modulation (XAM); doublet; electroabsorption modulator (EAM); ultrawideband (UWB);
Conference_Titel :
Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC), 2011
Conference_Location :
Harbin
Print_ISBN :
978-1-4244-9792-8
DOI :
10.1109/CSQRWC.2011.6036939
