提出了一种新型的40 Gb/s全光串并转换(AOSPC)的实现方案,该系统主要由波分/时分脉冲光源的产生与顺序多波长变换两个部分构成。实现了信道波长数目和重复频率可调的波时分脉冲光源;分析了基于单个半导体光放大器(SOA)中的交叉相位调制效应(XPM)实现顺序多波长变换的原理,并在此基础上采用顺序多波长变换技术实现了将40 Gb/s的串行输入光信号转换为8路5 Gb/s的并行输出信号。该技术可将高速率的光信号转换成为多路低速率信号,进而可以使用现有的电子器件对信号进行处理,为下一步的光分组交换中的报头处理技术和光随机存取存储器(RAM)的研究提供了一种可行的思路。 A novel scheme of 40 Gb / s all-optical serial-parallel conversion (AOSPC) is proposed. The system is mainly composed of two parts: the generation of wavelength-division / time-pulsed light source and the sequential multi-wavelength conversion. Wavelength-time pulsed light source with adjustable number of channels and repetition frequency is realized. The principle of sequential multiwavelength transform based on cross-phase modulation effect (XPM) in a single semiconductor optical amplifier (SOA) is analyzed. Based on this, Multi-wavelength conversion technology to achieve the 40 Gb / s serial input optical signal is converted to 8 5 Gb / s parallel output signal. The technology can convert high-speed optical signals into multi-channel low-rate signals, which can then be processed using existing electronic devices for header processing and optical random access memory (RAM) in next optical packet switching, Research provides a viable idea.