Title :
Multilevel all-optical format conversion from NRZ signal to RZ signal
Author :
Yu, Yu ; Zhang, Xinliang ; Wang, Fei ; Huang, Dexiu
Author_Institution :
Wuhan National Laboratory for Optoelectronics & School of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, 430074, China
Abstract :
We propose and demonstrate a multi-level all-optical format conversion from NRZ signal to RZ signal, using a semiconductor optical amplifier (SOA) and a detuned optical filter. The three-level NRZ signal and a synchronous optical clock signal are injected into an SOA, which acts as a nonlinear element and causes the spectrum of the input NRZ signal to be broadened due to the cross phase modulation (XPM) effect. A detuned filter is thus used to extract the specific part of the broadened spectrum to obtain three-level RZ signal. The proposed conversion can be achieved with error free at 10G baud rate.
Keywords :
Clocks; Nonlinear optics; Optical filters; Optical modulation; Optical signal processing; RF signals; Radio frequency; Semiconductor optical amplifiers; Signal generators; Stimulated emission; Format conversion; multi-level; non return-to-zero (NRZ); return-to-zero (RZ);
Conference_Titel :
Communications and Photonics Conference and Exhibition (ACP), 2009 Asia
Conference_Location :
Shanghai, China
Print_ISBN :
978-1-55752-877-3
Electronic_ISBN :
978-1-55752-877-3
