Photonic generation of ultrawideband (UWB) monocycle and doublet pulses is experimentally demonstrated using a cascaded electroabsorption modulator (EAM) and semiconductor optical amplifier by exploiting a combination of cross-absorption modulation and cross-gain modulation. The polarities and shapes of UWB monocycle and doublet pulses can be simply controlled using an optical time-delay controller and the reverse voltage applied to the EAM. The corresponding measured rf spectra meet the UWB criteria.
© 2009 Optical Society of America
Fiber Optics and Optical Communications
Original Manuscript: November 18, 2008
Revised Manuscript: February 20, 2009
Manuscript Accepted: March 20, 2009
Published: April 20, 2009
Enbo Zhou, Xianbin Yu, Xinliang Zhang, Weiqi Xue, Yu Yu, Jesper Mørk, and Idelfonso Tafur Monroy, "Photonic generation of ultrawideband monocycle and doublet pulses by using a semiconductor-optical-amplifier-based wavelength converter," Opt. Lett. 34, 1336-1338 (2009)