%0 Journal Article
%T Far-field Interferometric Characteristics of Four-core Fiber<br>四芯光纤的远场干涉特性研究
%A ( National Science Park of Harbin Engineering University
%A Harbin Engineering University
%A Harbin
%A China ( School of Science
%A Harbin Engineering University
%A Harbin
%A China
%A <br>赵士刚
%A 苑立波
%J 光子学报
%D 2007
%I 
%X A special four-core fiber has been designed and demonstrated,in which the internal distance between the neighbor cores is smaller.The special designed four-core fiber can be used as optical grid pattern generator or fiber optic sensors.The effect of both bending and twisting on the far field of the four-core fiber end is discussed for low-coherence LD light source.Based on the superposition principle of point source interference and small hole diffraction of each individual single mode core of the four-core fiber,the far-field grid pattern are obtained.It is agreement with experimental results.In an addition,the theoretical model of the optical path accumulation and the polarization fading along the bending four-core fiber is also established.The related experimental result is given.
%K Multi-core fiber
%K Low-coherence light source
%K Interferometry
%K Polarization state variation<br>多芯光纤
%K 低相干光源
%K 干涉
%K 偏振变化
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=9F6139E34DAA109F9C104697BF49FC39&aid=B83C820F27B37217D79C0A1E6D091460&yid=A732AF04DDA03BB3&vid=933658645952ED9F&iid=0B39A22176CE99FB&sid=D9AE183D3F5C3C75&eid=9CA95D22FC1D537C&journal_id=1004-4213&journal_name=光子学报&referenced_num=0&reference_num=16