Title :
Hundred-Picoseconds Electro-Optical Switching With Semiconductor Optical Amplifiers Using Multi-Impulse Step Injection Current
Author :
Figueiredo, R.C. ; Ribeiro, N.S. ; Oliveira Ribeiro, A.M. ; Gallep, C.M. ; Conforti, E.
Author_Institution :
Fac. of Electr. & Comput. Eng., Dept. of Commun., Univ. of Campinas, Campinas, Brazil
Abstract :
An ultrafast electro-optical amplified switch based on chip-on-carrier semiconductor optical amplifier with high optical contrast (33 dB) is presented. Switching times up to 115 ps with small overshoot were achieved by using the multi-impulse step injected current technique. These results are compared with previous preimpulse step injected current technique, and achieve a reduction of the inherent, post switching gain fluctuations without worsening the switching times. In addition, pulse formats for controlling such a kind of electro-optical switches are numerically analyzed and compared with experiments.
Keywords :
electro-optical switches; optical communication equipment; optical control; semiconductor optical amplifiers; chip-on-carrier semiconductor optical amplifier; electro-optical switch control; electro-optical switching; high optical contrast; multiimpulse step injected current technique; overshoot; post switching gain fluctuations; preimpulse step injected current technique; pulse formats; switching times; time 100 ps; time 115 ps; ultrafast electro-optical amplified switch; Gain; Optical attenuators; Optical pulses; Optical saturation; Optical switches; Semiconductor optical amplifiers; Electro-optics switches; electro-optics switches; optical switches; semiconductor optical amplifiers;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2014.2372893
