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Semi-vectorial analysis of a compact wavelength demultiplexer based on the tapered multimode interference coupler 被引量:1

Semi-vectorial analysis of a compact wavelength demultiplexer based on the tapered multimode interference coupler
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摘要 Based on a parabolically tapered multimode interference (MMI) coupler with a deep-etched SiO2/SiON rib waveguide, a compact wavelength demultiplexer operating at 1.30 and 1.55 μm wavelengths is proposed and analysed by using three-dimensional semi-vectorial finite-difference beam propagation method (3D-SV-FD-BPM). The results show that a MMI section of 330.0 μm in length, which is only 76% length of a straight MMI coupler, is achieved with the contrasts of 42.3 and 39.2dB in quasi-TE mode, and 38.4 and 37.8dB in quasi-TM mode at wavelengths 1.30 and 1.55μm, respectively, and the insertion losses below 0.2dB at both wavelengths and in both polarization states, The alternating direction implicit algorithm with the Crank-Nicholson scheme is applied to the discretization of the 3D-SV-FD-BPM formulation along the longitudinal direction. Moreover, a modified FD scheme is constructed to approximate the resulting equations along the transverse directions, in which the discontinuities of the derivatives of magnetic field components Hy and Hx along the vertical and horizontal interfaces, respectively, are involved. Based on a parabolically tapered multimode interference (MMI) coupler with a deep-etched SiO2/SiON rib waveguide, a compact wavelength demultiplexer operating at 1.30 and 1.55 μm wavelengths is proposed and analysed by using three-dimensional semi-vectorial finite-difference beam propagation method (3D-SV-FD-BPM). The results show that a MMI section of 330.0 μm in length, which is only 76% length of a straight MMI coupler, is achieved with the contrasts of 42.3 and 39.2dB in quasi-TE mode, and 38.4 and 37.8dB in quasi-TM mode at wavelengths 1.30 and 1.55μm, respectively, and the insertion losses below 0.2dB at both wavelengths and in both polarization states, The alternating direction implicit algorithm with the Crank-Nicholson scheme is applied to the discretization of the 3D-SV-FD-BPM formulation along the longitudinal direction. Moreover, a modified FD scheme is constructed to approximate the resulting equations along the transverse directions, in which the discontinuities of the derivatives of magnetic field components Hy and Hx along the vertical and horizontal interfaces, respectively, are involved.
出处 《Chinese Physics B》 SCIE EI CAS CSCD 2007年第7期2015-2022,共8页 中国物理B(英文版)
关键词 wavelength demultiplexer multimode interference beam propagation method photonic integrated circuits wavelength demultiplexer, multimode interference, beam propagation method, photonic integrated circuits
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  • 1Shimada T, Sakurai N and Kumozaki K 2005 J. Lightwave Technol. 23 2621
  • 2Qin x Y, Huang B Q, Chen H X, Li G and Gu P F 2004 Acta Phys. Sin. 53 3794 (in Chinese)
  • 3Hattori K, Kitagawa T, Oguma M, Ohmori Y and Horiguchi M 1994 Electron. Lett. 30 856
  • 4Zhang G, Honkanen S, Tervonen A, Wu C M and Najafi I 1994 Appl. Opt. 33 3371
  • 5Kolesik M, Matus M and Moloney J V 2003 IEEE Photon. Technol. Lett. 15 78
  • 6Paiam M R, Janz C F, Mac Donald R I and Broughton J N 1995 IEEE Photon. Technol. Lett. 7 1180
  • 7Lin K C and Lee W Y 1996 Electron. Lett. 32 1259
  • 8Li B, Li G, Liu E, Jiang Z, Qin J and Wang X 1999 IEEE Photon. Technol. Lett. 11 575
  • 9Soldano L B and Pennings C M 1995 J. Lightwave Technol. 13 615
  • 10Xiao J B, Sun X H, Cai C, Zhang X F, Zhu J B and Zhang M D 2003 Acta Electron. Sin. 31 1201 (in Chinese)

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