提出并成功研制了一种具有功能复用的新型的多功能光隔离器结构,对其进行了传输特性性能理论分析,分析表明,该器件具有与单尾纤光隔离器相同的低插入损耗,高隔离度等特性,实验结果显示,所设计的1550nm双通道多功能光隔离器插入损耗分别为0.28dB和0.11dB,隔离度分别为55dB和54dB,达到了隔离器需要满足的标准,性能良好,同时具有成倍降低器件制造成本的效用.

Using two fiber tips and lens twice, An innovated double channel optical isolator has been advanced and fabricated, which duplicates the function in comparison with conventional optical isolator with single fiber tip. The typical insertion loss and isolation of the developed isolator are as good as that of the conventional optical isolator in theory. It was experimentally confirmed that forward insertion loss of two channels at 1550 nm are lower than 0.28 dB and 0.11 dB, backward isolation of that are over 55 dB and 54 dB respectively. It′s most important that the isolator, which can be fabricated with duplicated function and high characteristics, also have a low cost and a small volume comparatively.