Waveguide Simulation using MODE solutions.

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Presentation transcript:

Waveguide Simulation using MODE solutions

MODE Solutions Download trial version  https://www.lumerical.com/ Need official E-mail(Ex: @yonsei.ac.kr) for download

How to download Need official E-mail(Ex: @yonsei.ac.kr) for download

How to download

How to download

License setting

Waveguide Simulation Finite Difference Time Domain (FDTD) Numerical method of solving Maxwell equation 3D FDTD Accurate Slow 2D FDTD 2.5D FDTD 2D FDTD with effective index method Fast Approximation

Waveguide Simulation Eigenmode solver Solution method in a cross-section of waveguide geometry Solve Maxwell equations for cross-sectional mash

MODE Solutions Lumerical MODE Solutions Eigenmode solver Propagation solver (2.5 FDTD)

MODE Solutions Make account at Lumerical homepage Download license Don’t run program at home 4/3 Class at A125(computer lab) Bring USB with downloaded license

MODE Solutions Drawing structure Example) Make strip waveguide Height: 220 nm Width: 500 nm Length: 30 μm Core material: Si Cladding material: SiO2

MODE Solutions

MODE Solutions Parameter can be predetermined here(material, number)

MODE Solutions Code for make cladding Geometry set x, x span z min, z max

MODE Solutions Result of cladding

MODE Solutions Include core # Material setting material_cladding = "SiO2 (Glass) - Palik"; material_core = "Si (Silicon) - Palik";

MODE Solutions Result

MODE Solutions Solver

MODE Solutions Run simulation

MODE Solutions

MODE Solutions

Example Make rib waveguide Core: Si Cladding: SiO2 500nm 130nm 220nm

Example Find the group and phase velocity of light for the fundamental TE mode in the following waveguides -rib waveguide, 220 nm thick, 500nm with at 1550 nm, 90 nm slab What is the single-mode condition for the strip waveguide TE mode? -220nm thick, 500nm width, at 1550nm What is the maximum width for the strip waveguide before it supports more than one mode?