提出并实验研究了采用压电陶瓷调制的光纤环形镜与光纤光栅结合的新型波长选择性光纤开关, 获得了开关动态范围大于16 dB、 波长选择端口插入损耗小于0.5 dB的实验结果。 研究表明光纤环形镜干涉臂长的平衡是器件的关键。

A new structure optical wavelength-selective switch based on fiber loop mirror and fiber Bragg grating is studied. The dynamic range of greater than 17 dB and insertion loss of 0.5 dB at wavelength-selective port were obtained. The measured spectra and numerical simulation indicate that the imperfect of the device can be attributed to the definite difference between the two arms, which was about 1.35 mm. Devices with better characteristics can be developed by decreasing the difference.