Study of All-Optical Sampling Using a Semiconductor Optical Amplifier

• 作者: Chen WU Fu WANG Lina WANG Yongjun WANG
• 来源期刊: 光子传感器:英文版
• 关键词: All-optical sampling semiconductor optical amplifier nonlinear polarization rotation
• 年，卷（期）: 2017,（1）
• 页码范围: 37-43
• 页数: 7页
• 分类号: YTP
• 语种: 中文

摘要

All-optical sampling is an important research content of all-optical signal processing. In recent years, the application of the semiconductor optical amplifier (SOA) in optical sampling has attracted lots of attention because of its small volume and large nonlinear coefficient. We propose an optical sampling model based on nonlinear polarization rotation effect of the SOA. The proposed scheme has the advantages of high sampling speed and small input pump power, and a transfer curve with good linearity was obtained through simulation. To evaluate the performance of sampling, we analyze the linearity and efficiency of sampling pulse considering the impact of pulse width and analog signal frequency. We achieve the sampling of analog signal to high frequency pulse and exchange the positions of probe light and pump light to study another sampling.