典型文献
High-performance and fabrication friendly polarization demultiplexer
文献摘要：
A compact and fabrication friendly polarization demultiplexer(P-DEMUX)is proposed and characterized to en-able wavelength-division-multiplexing and polarization-division-multiplexing simultaneously.The proposed structure is composed of a polarization-selective microring resonator in ultrathin waveguide and two bus channels in the silicon nitride-silica-silicon horizontal slot waveguides.In the slot waveguide,the transverse electric(TE)mode propagates through the silicon layer,while the transverse magnetic(TM)mode is confined in the slot region.In the designed ultra-thin waveg-uide,the TM mode is cut-off.The effective indexes of the TE modes for ultrathin and slot waveguides have comparable values.Thanks for these distinguishing features,the input TE mode can be efficiently filtered through the ultra-thin mi-croring at the resonant wavelength,while the TM mode can directly output from the through port.Simulation results show that the extinction ratio of the proposed P-DEMUX for TE and TM modes are 33.21 dB and 24.97 dB,and the insertion losses are 0.346 dB and 0.324 dB,respectively,at the wavelength of 1551.64 nm.Furthermore,the device shows a broad bandwidth(＞100 nm)for an extinction ratio(ER)of＞20 dB.In addition,the proposed P-DEMUX also has a good fabrication tolerance for the waveguide width variation of-20 nm≤Δwg≤20 nm and the microring width variation of-20 nm≤Δwr≤20 nm for a low insertion loss of＜0.75 dB and low ER of＜-18 dB.
文献关键词：
中图分类号：
作者姓名：
Huan Guan;Yang Liu;Zhiyong Li
作者机构：
State Key Laboratory on Integrated Optoelectronics,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China;College of Materials Science and Opto-Electronic Technology,University of Chinese Academy of Sciences,Beijing 100083,China
文献出处：
引用格式：
[1]Huan Guan;Yang Liu;Zhiyong Li-.High-performance and fabrication friendly polarization demultiplexer)[J].中国物理B（英文版）,2022(03):297-300
A类：
DEMUX,waveg,uide,croring,wg
B类：
High,performance,fabrication,friendly,polarization,demultiplexer,compact,proposed,characterized,wavelength,division,multiplexing,simultaneously,structure,composed,selective,microring,resonator,ultrathin,two,bus,channels,silicon,nitride,silica,horizontal,slot,waveguides,In,transverse,electric,TE,propagates,through,layer,while,magnetic,TM,confined,region,designed,cut,off,effective,indexes,modes,have,comparable,values,Thanks,these,distinguishing,features,input,can,be,efficiently,filtered,resonant,directly,output,from,port,Simulation,results,that,extinction,ratio,are,dB,insertion,losses,respectively,Furthermore,device,shows,broad,bandwidth,ER,addition,also,has,good,tolerance,variation,wr,low
AB值：
0.438481
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