典型文献
On-chip beam rotators,adiabatic mode converters,and waveplates through low-loss waveguides with variable cross-sections
文献摘要：
Photonics integrated circuitry would benefit considerably from the ability to arbitrarily control waveguide cross-sections with high precision and low loss,in order to provide more degrees of freedom in manipulating propagating light.Here,we report a new method for femtosecond laser writing of optical-fiber-compatible glass waveguides,namely spherical phase-induced multicore waveguide(SPIM-WG),which addresses this challenging task with three-dimensional on-chip light control.Fabricating in the heating regime with high scanning speed,precise deformation of cross-sections is still achievable along the waveguide,with shapes and sizes finely controllable of high resolution in both horizontal and vertical transversal directions.We observed that these waveguides have high refractive index contrast of 0.017,low propagation loss of 0.14dB/cm,and very low coupling loss of 0.19 dB coupled from a single-mode fiber.SPIM-WG devices were easily fabricated that were able to perform on-chip beam rotation through varying angles,or manipulate the polarization state of propagating light for target wavelengths.We also demonstrated SPIM-WG mode converters that provide arbitrary adiabatic mode conversion with high efficiency between symmetric and asymmetric nonuniform modes;examples include circular,elliptical modes,and asymmetric modes from ppKTP(periodically poled potassium titanyl phosphate)waveguides which are generally applied in frequency conversion and quantum light sources.Created inside optical glass,these waveguides and devices have the capability to operate across ultra-broad bands from visible to infrared wavelengths.The compatibility with optical fiber also paves the way toward packaged photonic integrated circuitry,which usually needs input and output fiber connections.
文献关键词：
中图分类号：
作者姓名：
Bangshan Sun;Fyodor Morozko;Patrick S.Salter;Simon Moser;Zhikai Pong;Raj B.Patel;Ian A.Walmsley;Mohan Wang;Adir Hazan;Nicolas Barré;Alexander Jesacher;Julian Fells;Chao He;Aviad Katiyi;Zhen-Nan Tian;Alina Karabchevsky;Martin J.Booth
作者机构：
Department of Engineering Science,University of Oxford,Oxford OX1 3PJ,UK;School of Electrical and Computer Engineering,Ben-Gurion University of the Negev,P.O.B.653,Beer-Sheva 8410501,Israel;Institute of Biomedical Physics,Medical University of Innsbruck,Müllerstra?e 44,6020 Innsbruck,Austria;Ultrafast Quantum Optics group,Department of Physics,Imperial College London,London,UK;Department of Physics,University of Oxford,Oxford,UK;Erlangen Graduate School in Advanced Optical Technologies(SAOT),Friedrich-Alexander-University Erlangen-Nurnberg,Paul-Gordan-Stra?e 6,91052 Erlangen,Germany;State Key Laboratory of Integrated Optoelectronics,College of Electronic Science and Engineering,Jilin University,Changchun 130012,China
文献出处：
引用格式：
[1]Bangshan Sun;Fyodor Morozko;Patrick S.Salter;Simon Moser;Zhikai Pong;Raj B.Patel;Ian A.Walmsley;Mohan Wang;Adir Hazan;Nicolas Barré;Alexander Jesacher;Julian Fells;Chao He;Aviad Katiyi;Zhen-Nan Tian;Alina Karabchevsky;Martin J.Booth-.On-chip beam rotators,adiabatic mode converters,and waveplates through low-loss waveguides with variable cross-sections)[J].光：科学与应用（英文版）,2022(08):1876-1890
A类：
rotators,waveplates,ppKTP,Created
B类：
On,chip,beam,adiabatic,converters,through,low,loss,waveguides,variable,sections,Photonics,integrated,circuitry,would,benefit,considerably,from,arbitrarily,high,precision,order,provide,more,degrees,freedom,manipulating,propagating,light,Here,report,new,method,femtosecond,laser,writing,optical,fiber,compatible,glass,namely,spherical,phase,induced,multicore,SPIM,WG,which,addresses,this,challenging,task,three,dimensional,Fabricating,heating,regime,scanning,speed,precise,deformation,still,achievable,along,shapes,sizes,finely,controllable,resolution,both,horizontal,vertical,transversal,directions,We,observed,that,these,have,refractive,contrast,propagation,14dB,very,coupling,coupled,single,devices,were,easily,fabricated,perform,rotation,varying,angles,manipulate,polarization,state,target,wavelengths,also,demonstrated,arbitrary,conversion,efficiency,between,asymmetric,nonuniform,modes,examples,include,circular,elliptical,periodically,poled,potassium,titanyl,phosphate,generally,applied,frequency,quantum,sources,inside,capability,operate,across,ultra,broad,bands,visible,infrared,compatibility,paves,way,toward,packaged,photonic,usually,needs,input,output,connections
AB值：
0.59198
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