%0 Journal Article
%T Properties Simulation of a Multimode Interference Coupler<br>一种多模干涉耦合器的性能模拟
%A Department of Physics
%A Changchun University of Science
%A Technology
%A Changchun
%A <br>武继江
%A 石邦任
%A 孔梅
%J 光子学报
%D 2006
%I 
%X A multimode interference(MMI) coupler with the exponentially tapered multimode waveguide is proposed in order to reduce the scale of the MMI device.The relation between the length of the multimode waveguide and the parameters of the tapered structure was analyzed in theory.Compared with the parabolically tapered structure,which has been successfully used in the MMI devices,this structure could further reduce the length of the MMI devices.The results of the simulation by the wide-angle finite difference beam propagation method(FD-BPM) for some MMI couplers with different parameters were given.It was shown that the performance of the MMI couplers with the exponentially tapered structure was similar to the devices with the parabolically tapered structure.As a result,the exponentially tapered structure can be used in MMI devices to reduce the length of this kind of devices.
%K Guided wave optics
%K Multimode interference coupler
%K Finite different beam propagation method(FD-BPM)
%K Exponential taper waveguides<br>导波光学
%K 多模干涉耦合器
%K 有限差分光束传播法
%K 指数型Taper波导
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=9F6139E34DAA109F9C104697BF49FC39&aid=5E10B4B552BC9A09&yid=37904DC365DD7266&vid=6209D9E8050195F5&iid=708DD6B15D2464E8&sid=8D0822DF60ACC08F&eid=9E8E868F1632249A&journal_id=1004-4213&journal_name=光子学报&referenced_num=0&reference_num=14