与偏振无关的相干光外差平衡接收技术研究

考虑在ＦＳＫ（频移键控）调制方式下平衡混频式相干光偏振分集接收技术的研究，包括这种接收方式的理论模型分析、体型偏振分束器的研制、测试及初步的接收实验。结果表明：研制的偏振分束器已接近国际先进水平，所采用的接收方法是可行的，为整个相干光通信系统的研制奠定了坚实的基础。

Study on Polarization Independent Heterodyne Balanced Receiver

A polarization independent frequency shift keying(FSK)heterodyne balanced re-ceiver is considered,including the model of this receiver,fabrication and the test of the bulk po-larization beamspiltter,and the preliminary experiment.Results of which show that perfor-mance of the polarization beamspiltter has approached the advanced world level,and the receiv-ing method is practical.It will be a great helpful to the whole coherent optical fiber communi-cation system.