双M-Z干涉仪中Y分支波导设计与分析
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摘要
介绍了分支波导和S形弯曲波导,设计了对称双Y分支S形弯曲波导的结构,并计算了其弯曲损耗。对1/2Y和1/4Y分支波导的传输及弯曲损耗随长度的变化进行了模拟仿真,结果表明,设计的双Y分支波导达到了低损耗的要求。最后对双M-Z干涉仪的光场传输进行了二维各向同性仿真,得到其光场传输图和折射率分布图。结果表明,设计的双M-Z干涉仪的分光比可达1∶1∶1∶1。
The branch waveguide and S-bend waveguide are presented in this paper.The structure of symmetrical double Y-branch S-bend waveguide is designed and its bending loss is calculated.The simulation of the change of transmission and bending loss with length for 1/2Y-branch waveguide and 1/4Y-branch waveguide is carried out.The results show that the designed double Y-branch waveguide meet the requirement of low loss.Finally,the twodimensional isotropic simulation of the optical field transmission of dual M-Z interferometer is carried out,and the optical field transmission graph and refractive index distribution graph are obtained.The results show that the light splitting ratio of the proposed dual M-Z interferometer is up to 1∶1∶1∶1.
The branch waveguide and S-bend waveguide are presented in this paper.The structure of symmetrical double Y-branch S-bend waveguide is designed and its bending loss is calculated.The simulation of the change of transmission and bending loss with length for 1/2Y-branch waveguide and 1/4Y-branch waveguide is carried out.The results show that the designed double Y-branch waveguide meet the requirement of low loss.Finally,the twodimensional isotropic simulation of the optical field transmission of dual M-Z interferometer is carried out,and the optical field transmission graph and refractive index distribution graph are obtained.The results show that the light splitting ratio of the proposed dual M-Z interferometer is up to 1∶1∶1∶1.
引文
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[11]王伟.基于余弦型Y分支光波导结构参数的传输性能研究[D].成都:西南交通大学,2007.
[2]恩德,魏建霞,徐可欣,等.高精度硅微简谐振子的设计与制作工艺[J].纳米技术与精密工程,2007,5(2):117-120.EN De,WEI Jianxia,XU Kexin,et al.Design and fabrication process of a Si-based high precision harmonic oscillator[J].Nanotechnology and Precision Engineering,2007,5(2):117-120.
[3]恩德,冯捷逾,张宁波.三分量加速度地震检波器光弹波导特性分析[J].应用光学,2011,32:39-43.EN De,FENG Jieyu,ZHANG Ningbo.Analysis of characteristics of photoelastic waveguides in threecomponent accelera-tion seismic geophone[J].Journal of Applied Optics.2011,32:39-43.
[4]唐天同,王兆宏.集成光学[M].北京:科学出版社,2005.
[5]赵策洲.全硅集成光学—理论与工艺[J].半导体光电,1994,15(1):85-93.ZHAO Cezhou.Siliceous integrated optics-theory and technology[J].Semiconductor and Optoelectronics,1994,15(1):85-93.
[6]王伟,潘炜,罗斌,等.余弦型Y分支结构参数的性能分析[J].激光与红外,2007,37(1):69-75.WANG Wei,PAN Wei,LUO Bin,et al.Analysis of the cosine style Y-branch parameters characteristic[J].Laser&Infrared,2007,37(1):69-75.
[7]WHITE L A.Radiation from bends in optical wave guides:the volumn-current method[J].Microwave Opt Acoust,1979,8(3):186-188.
[8]CHAN H P,CHENG S Y.Low loss wide-angle symmetric Y-branch waveguide[J].Electron Lett,1996,32(7):652-654.
[9]HAMID H H,PARK L C,MAX J L.A new low-loss wide-angle y-branch configuration for optical dielectric slab waveguide[J].IEEE Photon Technol Lett,1994,6(4):528-530.
[10]HSU J M,LEE C T.Systematic design of novel wideangle low-loss symmetric y-junction waveguides[J].IEEE J Quant Electron,1998,34(4):673-679.
[11]王伟.基于余弦型Y分支光波导结构参数的传输性能研究[D].成都:西南交通大学,2007.
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