Grating coupler efficiency enhancement by double layer interference

详细信息    查看全文 | 推荐本文 |

英文篇名：Grating coupler efficiency enhancement by double layer interference 作者：杨华山 ; 张福领 ; 冷乐蒙 ; 曾昭邦 ; 邵越 ; 张辉 ; 杨楠 ; 陈相宁 英文作者：Huashan Yang;Fuling Zhang;Lemeng Leng;Zhaobang Zeng;Yue Shao;Hui Zhang;Nan Yang;Xiangning Chen;College of Engineering and Applied Sciences, Nanjing University;Key Laboratory of Intelligent Optical Sensing and Manipulation of Ministry of Education, Nanjing University;The 27th Research Institute of China Electronics Technology Group Corporation;School of Electronic Science and Engineering, Nanjing University; 中文刊名：GXKB 英文刊名：中国光学快报(英文版) 机构：College of Engineering and Applied Sciences, Nanjing University;Key Laboratory of Intelligent Optical Sensing and Manipulation of Ministry of Education, Nanjing University;The 27th Research Institute of China Electronics Technology Group Corporation;School of Electronic Science and Engineering, Nanjing University; 出版日期：2019-03-25 出版单位：Chinese Optics Letters 年：2019 期：v.17 基金：supported by the National Key R&D Program of China (Nos. 2017YFA0303700 and 2017YFA0303704);; the National Natural Science Foundation of China (Nos. 61775094 and 41427801);; the Fundamental Research Funds for the Central Universities (No. 021314380072), ;; the Priority Academic Program Development of Jiangsu Higher Education Institutions 语种：英文; 页：GXKB201903002 页数：5 CN：03 ISSN：31-1890/O4 分类号：11-15

摘要

A simple method for improving grating couplers' coupling efficiency without any extra microfabrication processes is proposed. This method can improve the coupling efficiency with 1.69 dB by utilizing the combined interference in the cladding layer and air gap between the cladding surface and the paralleled angle polished fiber facet. The proposed method can be applied to various kinds of on-chip grating couplers. Back reflection,1 dB bandwidth, and fiber alignment tolerance have also been improved at the same time.
        A simple method for improving grating couplers' coupling efficiency without any extra microfabrication processes is proposed. This method can improve the coupling efficiency with 1.69 dB by utilizing the combined interference in the cladding layer and air gap between the cladding surface and the paralleled angle polished fiber facet. The proposed method can be applied to various kinds of on-chip grating couplers. Back reflection,1 dB bandwidth, and fiber alignment tolerance have also been improved at the same time.

引文

1.W.Song,R.Gatdula,S.Abbaslou,M.Lu,A.Stein,W.Y.Lai,J.Provine,R.F.W.Pease,D.N.Christodoulides,and W.Jiang,Nat.Commun.6,7027(2015).
    2.N.Yang,H.Yang,H.Hu,R.Zhu,S.Chen,H.Zhang,and W.Jiang,Photon.Res.4,233(2016).
    3.S.Cheung,T.Su,K.Okamoto,and S.J.B.Yoo,IEEE J.Sel.Top.Quantum Electron.20,310(2014).
    4.H.Xu,X.Li,X.Xiao,P.Zhou,Z.Li,J.Yu,and Y.Yu,Opt.Lett.39,4839(2014).
    5.H.Chen,P.Verheyen,P.D.Heyn,G.Lepage,J.D.Coster,S.Balakrishnan,P.Absil,W.Yao,L.Shen,and G.Roelkens,Opt.Express 24,4622(2016).
    6.Z.Zhang,J.Hu,H.Chen,F.Li,L.Zhao,J.Gui,and Q.Fang,Chin.Opt.Lett.15,041301(2017).
    7.M.Wang,L.Zhou,H.Zhu,Y.Zhou,Y.Zhong,and J.Chen,Chin.Opt.Lett.15,042501(2017).
    8.X.Chen,C.Li,C.K.Y.Fung,S.M.G.Lo,and H.K.Tsang,IEEEPhoton.Technol.Lett.22,1156(2010).
    9.C.Zhang,J.-H.Sun,X.Xiao,W.-M.Sun,X.-J.Zhang,T.Chu,J.-Z.Yu,and Y.-D.Yu,Chin.Phys.Lett.30,014207(2013).
    10.L.He,Y.Liu,C.Galland,A.E.-J.Lim,G.-Q.Lo,T.Baehr-Jones,and M.Hochberg,IEEE Photon.Technol.Lett.25,1358(2013).
    11.R.Shi,H.Guan,A.Novack,and M.Streshinsky,IEEE Photon.Technol.Lett.26,2158(2014).
    12.R.Marchetti,C.Lacava,A.Khokhar,I.Cristiani,D.Richardson,P.Petropoulos,and P.Minzioni,in Integrated Photonics Research,Silicon and Nanophotonics(2017),paper ITu1A-2.
    13.F.Van Laere,G.Roelkens,J.Schrauwen,D.Taillaert,P.Dumon,W.Bogaerts,D.Van Thourhout,and R.Baets,in 2006 Optical Fiber Communication Conference and the National Fiber Optic Engineers Conference(2006),paper PDP15.
    14.A.Mekis,S.Abdalla,D.Foltz,S.Gloeckner,S.Hovey,S.Jackson,Y.Liang,M.Mack,G.Masini,and M.Peterson,in IEEE Photonics Conference(2012),paper TuQ2.
    15.D.Vermeulen,S.Selvaraja,P.Verheyen,G.Lepage,W.Bogaerts,P.Absil,D.Van Thourhout,and G.Roelkens,Opt.Express 18,18278(2010).