A scheme for photonic generation of ultra-wideband (UWB) pulses using a semiconductor optical amplifier (SOA) and an electro-absorber (EA) in parallel is proposed and numerically demonstrated. By adjusting the time delay between two pump signals incident into the SOA and the EA, we can obtain monocycle pulses with reversed polarities and different bandwidths. The proposed method is flexible in pulse shaping and easy in practical optimization.
© 2010 Chinese Optics Letters
(070.4340) Fourier optics and signal processing : Nonlinear optical signal processing
(250.5980) Optoelectronics : Semiconductor optical amplifiers
(350.4010) Other areas of optics : Microwaves
Bingbing Wu, Jian Wu, Kun Xu, Xiaobin Hong, Junyi Zhang, and Jintong Lin, "Photonic ultra-wideband monocycle pulses generation using semiconductor optical amplifier and electro-absorber in parallel," Chin. Opt. Lett. 8, 902-905 (2010)