All optical switch based on nonlinear polarization rotation (NPR) in semiconductor optical amplifier (SOA)

摘要：

An all-optical switch is proposed and demonstrated using the nonlinear polarization rotation (NPR) with linear polarization maintenance arising in a semiconductor optical amplifier (SOA). By introducing optical control pulse into the SOA, the state of polarization (SOP) of the packet signal can be switched between the vertical linear SOP and the horizontal linear SOP on the Poicáre sphere (PS). Then a polarization beam splitter (PBS) is used to perform polarization-to-intensity conversion. Thus the input packet signal can be switched between the two output ports of the PBS. And an extinction ratio of switching operation larger than 20 dB is obtained.

关键词： semiconductor optical amplifier (SOA) nonlinear polarization rotation (NPR) state of polarization (SOP),polarization beam splitter (PBS)

作者: Guo Ning P.Shum Wu Chongqing Desmond.R.Lim Vincent Wong

作者单位: Lightwave Technology Group,Network Technology Research Centre,School of Electrical andElectronic Eng Institute of Optical Information,School of Science,Beijing Jiaotong University,Beijing,P.R.China,100 Temasek Lab @ NTU,Singapore

会议类型: 国际会议

会议名称: 2008亚太光通信会议(Asia-Pacific Optical Communications 2008)

会议地点: 杭州

会议语种:英文

在线出版日期: 2008-10-26（万方平台首次上网日期，不代表论文的发表时间）