A phase pre-emphasis technique used in an all-optical sampling orthogonal frequency division multiplexing (AOS-OFDM) system is proposed and demonstrated. With the application of this technique, 50-Gb/s AOS-OFDM data are successfully transmitted over 20-km uncompensated single-mode fiber (SMF) with real-time direct-detection. The constructive interference effect between symbols is decreased with this technique.
© 2010 Chinese Optics Letters
Hongwei Chen, Chao Tang, Feifei Yin, Minghua Chen, and Shizhong Xie, "Phase pre-emphasis technique in real-time AOS-OFDM system," Chin. Opt. Lett. 8, 871-874 (2010)