嵌入式质子交换光波导偏振器的制作及高消光比检测装置的研究

Fabrication of Embed Integrated Proton-exchanged Optical Polarizer and Study on the High Extinction Ratio Testing Set

用钛内扩散和质子交换相结合的方法制得了光波导偏振器，这一偏振器由在不连续的扩钛波导中嵌入一段质子交换波导形成。本文讨论了一些资料中报道的检测方法，并对测量集成光波导偏振器提出了一个新方案。该方案测得的偏振器消光比大于52．5dB．

Integrated optical polarizers have been fabricated by using titanium indiffu-sion in conjunction with proton exchange. The polarizer consists of Ti-diffused channelwaveguide with a short discontinuity filled with proton-exchanged waveguide. In this paperwe have discussed the measuring methods which were reported in some refernces and pro-posed a novel design for charactering the integrated optical polarizers. While using this setupthe polarizer fabricated in our laboratory exhibited polarization extinction ration of >52.5db.