基于硅十字缝隙波导结构的偏振无关微环型谐振腔的设计与模拟（英文）
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摘要
分析了硅基十字缝隙波导(SCSW)偏振敏感的原因,计算了不同偏振态下SCSW的有效折射率和单模工作条件,分析发现通过合理的设计单模SCSW的结构,可以达到偏振不敏感。提出并模拟了基于SCSW的具有偏振无关特性的微环形谐振腔。该谐振腔的半径为3.7μm,偏振无关的工作区域大约64 nm,自由光谱范围大约35 nm。
Origin of polarization sensitivity of the silicon cross-slot waveguide(SCSW) is analyzed. The effective refractive indices as well as the single-mode-operation conditions of SCSWs for different polarization states are calculated. A single-mode SCSW can be polarization-insensitive if its structure is designed dedicated. A polarizationindependent micro-ring resonator with 3.7 μm radius based on a polarization-insensitive SCSW is proposed and simulated. The polarization-independent working bandwidth of the micro-ring resonator is about 64 nm, and the free spectral range is about 35 nm.
Origin of polarization sensitivity of the silicon cross-slot waveguide(SCSW) is analyzed. The effective refractive indices as well as the single-mode-operation conditions of SCSWs for different polarization states are calculated. A single-mode SCSW can be polarization-insensitive if its structure is designed dedicated. A polarizationindependent micro-ring resonator with 3.7 μm radius based on a polarization-insensitive SCSW is proposed and simulated. The polarization-independent working bandwidth of the micro-ring resonator is about 64 nm, and the free spectral range is about 35 nm.
引文
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26 Li Minghui,Ma Kezhen,Luo Liang,et al..Influence of coupling gap on the performance of silicon-no-insulator microring resonator[J].Chinese J Lasers,2014,41(6):0610001.李明慧,马可贞,骆亮,等.耦合间距对绝缘体上硅微环谐振腔的性能影响[J].中国激光,2014,41(6):0610001.
2 Q F Xu,V R.Almeida,R R Panepucci,et al..Experimental demonstration of guiding and confining light in nano-meter size low-refractive-index material[J].Opt Lett,2004,29(14):1626-1628.
3 Wenliang Wang,Xiaohong Rong.Double wavelength polarization insensitive beam splitter used in optical storage technology[J].Chin Opt Lett,2013,11(S1):S10106.
4 Rui Zhang,Yufei Wang,Yejin Zhang,et al..Broadband and polarization-insensitive subwavelength grating reflector for the near-infrared region[J].Chin Opt Lett,2014,12(02):020502.
5 Yin Xu,Jinbiao Xiao,Xiaohan Sun.Compact polarization beam splitter for silicon-based slot waveguides using an asymmetrical multimode waveguide[J].J Lightwave Technol,2014,32(24):4484-4490.
6 Md Faruque Hossain,Hau Ping Chan,Abbas Z Kouzani.Efficient design of polarization insensitive polymer optical waveguide devices considering stress-induced effects[J].Opt Express,2014,22(8):9334-9343.
7 Biswajeet Guha,Jaime Cardenas,Michal Lipson.Athermal silicon microring resonators with titanium oxide cladding[J].Opt Express,2013,21(22):26557-26563.
8 J V Galan,P Sanchis,J Garcia,et al..Study of asymmetric silicon cross-slot waveguides for polarization diversity schemes[J].Appl Opt,2009,48(14):2693-2696.
9 A Khanna,A Saynatjoki,A.Tervonen,et al..Non-birefringent cross-slot waveguide[C].Proceeding of Laser and ElectroOptics and the European Quantum Electronics Conference,2009.
10 Amit Khanna,Antti S?yn?tjoki,Ari Tervonen,et al..Control of optical mode properties in cross-slot waveguides[J].Appl Opt,2009,48(34):6547-6552.
11 Xiaoguang Tu,Soo Seng Norman Ang,Ah Bian Chew,et al..An ultracompact directional coupler based on gaas cross-slot waveguide[J].IEEE Photon Technol Lett,2010,22(17):1324-1326.
12 Matthieu Roussey,Petri Stenberg,Arijit Bera,et al..Polarization independent integrated filter based on a cross-slotwaveguide[J].Opt Express,2014,22(20):24149-24159.
13 B M A Rahman,D M H Leung,N Kejalakshmy,et al..Novel silicon cross-slot optical waveguide for polarization diversity applications[C].Proceeding of Signal Processing in Photonic Communications Conference,2013,JT3A:22.
14 J V Galan,P Sanchis,J Garcia,et al..Silicon cross-slot waveguides insensitive to polarization[C].Proceeding of IEEE/LEOS Winter Topicals Meeting Series,2009:32-33.
15 Wanjun Wang,Haifeng Zhou,Jianyi Yang,et al..Polarization-insensitive electro-optical modulator based on polymer-filled silicon cross-slot waveguide[C].SPIE,2009,7630,763016.
16 Wim Bogaerts,Peter De Heyn,Thomas Van Vaerenbergh,et al..Silicon microring resonators[J].Laser Photonics Rev,2012,6(1):47-73.
17 J Ding,H Chen,L Yang,et al..Low-voltage,high-extinction-ratio,Mach-Zehnder silicon optical modulator for CMOScompatible integration[J].Opt Express,2012,20(3):3209-3218.
18 Liu Yi,Tong Xiaogang,Yu Jinlong,et al..All-optical switching in silicon-on-insulator serially coupled double-ring resonator based on thermal nonlinear effect[J].Chinese J Lasers,2013,40(2):0205006.刘毅,仝晓刚,于晋龙,等.基于热非线性效应的硅基串联双微环谐振腔全光开关[J].中国激光,2013,40(2):0205006.
19 Minming Geng,Lianxi Jia,Lei Zhang,et al..Design and fabrication of polarization-independent micro-ring resonators[J].Chin Phys Lett.,2008,25(4),1333-1335
20 B M A.Rahman,F A Fernandez,B J Davies.Review of finite element methods for microwave and optical waveguides[J].Proceeding of IEEE,1991,79(10):1442-1448.
21 P Andrew Anderson,Bradley S Schmidt,Michal Lipson.High confinement in silicon slot waveguides with sharp bends[J].Opt Express,2006,14(20):9197-9202.
22 S C Hagness,D Rafizadeh,S T Ho,et al..FDTD microcavity simulations:design and experimental realization of waveguidecoupled single-mode ring and whispering-gallery-mode disk resonators[J].J Lightwave Technol,1997,15(11):2154-2165.
23 Minming Geng,Lianxi Jia,Lei Zhang,et al..Four-channel reconfigurable optical add-drop multiplexer based on photonic wire waveguide[J].Opt Express,2009,17(7):5502-5516.
24 J K S Poon,J Scheuer,S Mookherjea,et al..Matrix analysis of microring coupled-resonator optical waveguides[J].Opt Express,2004,12(1):90-103
25 Dong Xiaowei,Pei Li,Jian Shuisheng.Transfer matrix method for analyzing the characteristics of multiple-ring higher order microring resonators[J].Chinese J Lasers,2005,32(7):929-932.董小伟,裴丽,简水生.传输矩阵法分析多环高阶谐振滤波器特性[J].中国激光,2005,32(7):929-932.
26 Li Minghui,Ma Kezhen,Luo Liang,et al..Influence of coupling gap on the performance of silicon-no-insulator microring resonator[J].Chinese J Lasers,2014,41(6):0610001.李明慧,马可贞,骆亮,等.耦合间距对绝缘体上硅微环谐振腔的性能影响[J].中国激光,2014,41(6):0610001.