Title :
Photonic generation of power-efficient ultra-wideband waveforms using a single semiconductor optical amplifier
Author :
Dong, Jianji ; Zhang, Yin ; Yu, Yuan ; Huang, Dexiu ; Zhang, Xinliang
Author_Institution :
Wuhan Nat. Lab. for Optoelectron., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
A novel photonic generation of power-efficient ultra-wideband (UWB) pulse by combining two asymmetric monocycle pulses with inverted polarities is experimentally demonstrated. The principle lies in cross-phase modulation (XPM) in a single semiconductor optical amplifier (SOA) and phase modulation to intensity modulation conversions in an arrayed-waveguide grating (AWG). The Federal Communications Committee (FCC) compliant UWB pulse gains 24.3 dB and 20.8 dB improvements compared to positive and negative monocycle pulses after power attenuation to respect the FCC spectral mask, respectively. The generated power-efficient UWB with pulse duration of about 310 ps has potential to achieve high speed transmission and modulation without overlapping and distortion.
Keywords :
arrayed waveguide gratings; high-speed optical techniques; intensity modulation; optical distortion; optical modulation; optical pulse generation; phase modulation; semiconductor optical amplifiers; ultra wideband technology; arrayed-waveguide grating; asymmetric monocycle pulses; cross-phase modulation; high speed transmission; intensity modulation conversions; optical distortion; photonic generation; power attenuation; power-efficient ultrawideband waveforms; pulse gains; single semiconductor optical amplifier; spectral mask; FCC; Modulation; Nonlinear optics; Optical attenuators; Optical fibers; Semiconductor optical amplifiers; Ultrawideband generation; microwave photonics; semiconductor optical amplifier;
Conference_Titel :
Communications and Photonics Conference and Exhibition (ACP), 2010 Asia
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-7111-9
DOI :
10.1109/ACP.2010.5682693
