%A Yin ZHANG, Jianji DONG, Lei LEI, Hao HE, Xinliang ZHANG %T 40-Gbit/s 3-input all-optical priority encoder based on cross-gain modulation in two parallel semiconductor optical amplifiers %0 Journal Article %D 2012 %J Front. Optoelectron. %J Frontiers of Optoelectronics %@ 2095-2759 %R 10.1007/s12200-012-0222-9 %P 195-199 %V 5 %N 2 %U {https://journal.hep.com.cn/foe/EN/10.1007/s12200-012-0222-9 %8 2012-06-05 %X

A 3-input all-optical priority encoder is designed. Proof-of-concept experiment is performed at 40-Gbit/s based on a cross-gain modulation (XGM) in two parallel semiconductor optical amplifiers (SOAs). Output logic signals with over 10-dB extinction ratios (ERs) and clear open eye diagrams are obtained. No additional input light beam is used. The proposed scheme may be a promising candidate for future ultrafast all-optical digital signal processing circuits and computing systems.