Optiwave fdtd tutorial. 65: 6: To save the material, click Store.

Optiwave fdtd tutorial The CFL condition for non-uniform mesh FDTD should refers to the smallest mesh size. Optiwave software can be used in different industries and applications, including Fiber Optic Communication, Sensing, Pharma/Bio, Military & Satcom, Test 2. With this method, OptiFDTD provides a More Info By Lorentz dispersion materials, we mean materials for which the frequency dependence of the dielectric permittivity can be described by a sum of multiple resonance Lorentzian functions: where ω0m are the resonant frequencies Gm is related to the oscillator strengths Γm is the damping coefficient ε∞ is the permittivity at infinite frequency X0 is the OptiFDTD. The basic FDTD algorithm must be modified at the boundaries of the computational window where suitable numerical absorbing boundary conditions (ABC) are applied. extension . The OptiFDTD software package is based on the finite-difference time-domain (FDTD) method. It uses the dielectric susceptibility function: and the relation between the polarization and the electric field P y = ε 0 x (ω) E y . For 64-Bit FDTD simulation, Observation Points will still record the time domain response in each single point, but Observation Area will perform the spectral analysis during the simulations and save the resulting DFT More Info Step: Action: 1: Start Waveguide Layout Designer. OptiFDTD allows you to design, analyze, and test modern passive and nonlinear components for wave propagation, scattering, reflection, diffraction, polarization, and nonlinear photonics phenomena. Complex grating layout analysis and other plane wave More Step: Action: 1: Open results file by analyzer. : 3: OptiSPICE is the first circuit design software for analysis of integrated circuits including interactions of optical and electronic components. 4 Under the Materials folder of OptiFDTD Designer1, right-click the The equation above needs to have a pre-defined value for the k-vector; which is not so feasible for an FDTD simulation, especially for Pulse input. TF/SF simulation enable RADAR cross Section analysis. 2: To create a new project, from the File menu, select New. The diffraction angle and power ratio for different diffraction beam can be evaluated from More Info OptiFDTD. To create a new project, perform the following procedures. 2 Click Run to start the simulation. From here, you can create new designs, set. Product: OptiFDTD: FDTD Design and Analysis for Photonic Components Tutorial Series: Lesson 9 - FDTD Band Optiwave software can be used in different industries and applications, including Fiber Optic Communication, Sensing, Pharma/Bio, Military & Satcom, Test & Measurement, Fundamental Research, Solar Panels, Components / Devices, etc. The time domain response More Info Far Field Transform - Fraunhofer approximation Narrow angle far-field transform being used in OptiFDTD is based on the Fraunhofer approximation: At a large distance d, the far OptiFDTD provides comprehensive design, simulation, and post-analysis tools for photonic crystal (PhC) and photonic band gap (PBG) analysis: layout designer provides the tools to define the lattice relation, atom properties, defects, wave path, and observation projects band solver is an independent simulation engine that gives the band-diagram for the defined lattice structure In the previous examples we intentionally selected propagation direction (k-vector) normal to the multilayer structures. When this check box is selected, FDTD OptiFDTD provides four types of nonlinear materials. Assuming an isotropic dispersive material, Maxwell’s equations are: where PL represents the linear Skip to content. Double- click the observation point. Product: OptiFDTD: FDTD Design and Analysis for Photonic Components Tutorial Series: Lesson 2 - Input Wave In this tutorial we design simple Bragg Grating that consists of alternating layers with permittivity contrast 1/13 as discussed and analyzed in [1]. 324 and 0. The Simulator window appears (Figure 14). : 4: Under the Materials folder, right-click the FDTD-Nonlinear folder and select New. • For the details on how a lattice can be created, please refer to Lesson 3— Photonic crystal and photonic band gap simulation and Lesson 9—FDTD Band Solver. Type the following values in the dialog box • General In the above parameter set up, if we only set one term, and set resonant frequency as zero, we will simulate a Drude model material 7 Click “Store” to save the defined material. : 2: Click Hx(DFT) AMP button or Hz(DFT) AMP button to Observe other field components. Inside the rectangular region, it generates the total field. Step: Action: 1: Open OptiFDTD Waveguide layout Designer. OptiFDTD_Designer window opens. T. , “Numerical solution of initial boundary value problems involving Maxwell’s equations in isotropic media,” IEEE Transactions on Antennas and Propagation, 302-307, (1966). Note: The corresponding project file can also be found in the Sample’s file folder, Sample02_3D_Ring_Resonator. The Wafer Properties dialog box appears. Observation Point dialog box appears 2 To observe the time domain response in the observation point, check the observation point object, select the field components button, Step Action 1 From the Simulation menu, select the “2D 32bit simulation parameters“ 2 Click Run to start the simulation. (b)To define a 3D channel profile, This lesson is designed to familiarize you with the OptiFDTD layout designer concept. The progress window appears, it displays the status of the simulations. However, if Lorentz-Drude material in 3D layout touches Thanks to the parameterized design we can easily verify other published results as well as point out other features of PWE band solver. please read To observe nonlinear effects in common used materials, a high-intensity light source is required. This model can handle both the Drude and Lorentz For the 32-Bit FDTD simulation, observation objects will record the entire time domain response so that spectrum analysis can be performed in analyzer. We found that the TE solutions (Optiwave convention) exhibit a band gap in the range between 0. OptiFDTD_Designer window opens: 2: Create a new project. The Perfectly Matched Layer (PML) boundary conditions have the best Step: Action: 1: Start Waveguide Layout Designer. 12µm, 0. N Re: 1. Based on feedback from our customers, OptiFDTD 5. The layer of Step: Action: 1: From the Edit menu, select Wafer Properties. Note: (a)2D Profile will be used for 2D simulations. To observe the refractive index distribution, perform the following procedure. OptiSPICE is the first circuit design software for analysis of integrated circuits including interactions of optical and electronic components. Index tab at the bottom of the layout window. : 4: In the directory under OptiFDTD_Designer1 of the Profile Designer, under the Materials folder, right-click the FDTD-Dispersive folder, and Step Action 1 Select “Simulation 3D Using 64bit Simulator” under the Simulation menu, 3D Simulation Parameters dialog box appears. The photonic structure we want to analyze consists of a hexagonal pattern of air holes in dielectric with permittivity 13. 65. – For the details on how material and waveguide profile can be created, please refer to tutorial Lessons 1 1. OptiFDTD is a powerful, highly integrated, and user friendly CAD environment that enables the In this sample, we want to sweep two parameters: length01 and length02. It allows for the design and simulation of opto-electronic circuits at the transistor level, from laser drivers to transimpedance amplifiers, optical interconnects and electronic equalizers. From the Start menu, select Programs >Optiwave Software > OptiFDTD >. Therefore, we simplified the application by setting the k-vector in one specific direction as zero, which then leads to the input wave being the axis-propagated wave, and then the equation becomes: FDTD basic references [1] Yee, K. 7: Under the Materials folder, right-click the FDTD-Nonlinear folder and select New. 12 µm, 0. 2 To create a new project, select File > New. : 2: Place the Observation Point in the desired position in the layout. jp OptiFDTD versions 2 through 4 provided a Drude model and a separate Lorentz model for metal, plasma and dispersive material simulation. please read the chapter “know the difference between 32bit simulation and 64bit simulation” or tutorial lesson 18. : 3: Click OK. dialog box appears. 442. Data are saved in a project file with the. : 3: Click on the Observation Area button to open “ObservationArea2” in the observation area check list. 32-bit FDTD Simulation - Step Action 1 From the Simulation menu, select the “2D 32bit simulation parameters" 2 Click Run to start the simulation. We will show how to use PWE band solver to analyze cases of both normal and oblique incidence, while pointing out other features of the software, namely output normalization and inversion symmetry. , Chaudhuri, S. More Info Introduction. In case of an off-axis propagation the k-vector has a component parallel to the Bragg layers, and the degeneracy of More Info Create a new project The following lesson uses a micro-ring resonator as a sample design. Assuming an isotropic dispersive material, Maxwell’s equations are: where PL represents the linear polarization, in general is the dispersive polarization which is controlled by Lorentz model in Equation 20 and denotes the nonlinear polarization. Outside of this rectangular region, it is the pure scattering field. : 2: To create a new project, select File > New. From this point of viewer the time iteration number does not saved. The Wafer Properties dialog box closes. For example, Figure 100 shows a 2D square lattice going to infinity in both x- and Open PWE Parameters dialog box (Simulation->PWE Band Solver Parameters) Figure 4: PWE parameters dialog box Unless stated otherwise use default values. optiwave. We will define some basic geometry and lean Timeline:0:00 Warmup1:36 Introduction3:53 A reflectance calculation using a GaAs half-space 20:30 A filter using an optical grating 44:50 Q&A GET YOUR FREE DOWNLOAD: http://optiwave. co. OptiFDTD is a powerful, highly integrated, Optiwave software can be used in different industries and applications, including Fiber Optic Communication, Sensing, Pharma/Bio, Military & Satcom, OptiFDTD Tutorials. Step: Action: 1: From the Draw menu, select Observation Point. 9 suspended in air was investigated earlier in Lesson 2—Input wave setup. The “Observation Properties – Point” . To simulate • In this lesson, it is presumed that you already read the PWE Tutorials 1 to 3. 9 suspended in air, with radius of 0. The corresponding formulas are: x-polarization power y-polarixation power Total power where the cap dot indicates the complex value that comes from Optiwave software can be used in different industries and applications, Product: OptiFDTD: FDTD Design and Analysis for Photonic Components Tutorial Series: Lesson 9 - FDTD Band Solver, OptiFDTD Tutorials; Related: OptiSPICE Tutorials Basic Optiwave software can be used in different industries and applications, including Fiber Optic Communication, Sensing, Pharma/Bio, Military & Satcom, Test & Measurement, Fundamental Research, Solar Panels, Components / Devices, Home There are two ways to perform the parameter sweep simulation with OptiFDTD: • Simulation Using Script. However, FDTD is a time domain method and therefore would be suitable for broadband simulations. We will set two sweep levels: level one will scan parameter length01 and level two will scan parameter Step: Action: 1: From the Simulation menu, select the “Simulate 3D using 64-Bit Simulator” option. From the OptiFDTD_Designer File menu, select New. The Introduction - The OptiFDTD software has seven interdependent modules: OptiFDTD_Designer—Create the photonic devices to model OptiFDTD_Simulator—Perform The most efficient way to learn how to use OptiFDTD is to complete the lessons in the Tutorials, where you will learn how to create more advanced projects that suit your needs. 65 appears in the Dielectric folder in the directory and in the dialog box title bar. If the input power is too low, you may not observe the nonlinear phenomenon. First we have a look what is going to happen if More Info In general, the nonlinear behavior is due to the dependence of the polarization P(t) on the applied electric field, E(t). Tutorials; Videos; Training; Manuals; Tutorials; Videos; Training; Manuals; Community. The simulation concept is to use the FDTD method to get the near field pattern and near field transmission and reflection. : 4: In the Optiwave software can be used in different industries and applications, including Fiber Optic Communication, Sensing, Pharma/Bio, Military & Satcom, Test & Measurement, Fundamental Research, Solar Panels, Components / Devices, Bragg Grating with Layers of Different Width - Thanks to the parameterized design we can easily verify other published results as well as point out other features of PWE band solver. Skip to content. Applications . K. This document will guide you through these steps and provide you The OptiFDTD software has seven interdependent modules: OptiFDTD_Designer—Create the photonic devices to model; OptiFDTD_Simulator—Perform the FDTD simulation and DFT analysis; OptiFDTD_Analyzer—Post-process the simulated data; FDTD Band Solver—Generate band diagram for photonic crystal; PWE Band Solver– Band Skip to content. The Initial Properties dialog box appears. Let’s change a variable to 0. Equation 60 is the boundary condition used in the OptiFDTD To draw a micro-ring resonator, first draw a linear waveguide by performing the following procedures. , “A finite-difference time-domain method for the design and analysis of guided-wave optical structures,” Journal of Lightwave This lesson utilizes 2D layout to demonstrate usage of Lorentz-Drude materials in OptiFDTD simulations. At the first time step of the simulation all the fields are set to zero. The progress window appears, it displays the status of the simulations. 14µm, 0. Observing the Refractive Index Distribution Step Action 1 Click the 3D Ref. There are several choices for the type of boundary conditions. It displays status of the simulations and the iteration number. The results file name will contains the iteration number. Ziolkowski ‘s work [1]-[4], OptiFDTD treats the nonlinear effect with a finite response time as well as an instantaneous manner More Info 2D FDTD Band Solver Introduction - The band solver in OptiFDTD is an integrated CAD tool and simulation engine for analyzing the photonic crystal and photonic band gap structure. The intraband part εfr ( ω ) of the dielectric function More Info In this model, the electrical displacement D is where εL is the linear relative permittivity and X(2) is the second order isotropic susceptibility. layout designer provides the tools to define the lattice relation, atom properties, defects, wave path, and observation projects; band solver is an independent simulation engine that gives the band-diagram for the defined lattice Name: FDTD_1. The algorithm needs the initial field excitation that will be propagated through the Optiwave software can be used in different industries and applications, including Fiber Optic Communication, Sensing, Pharma/Bio, Military & Satcom, Test & Measurement, Fundamental Research, Solar Panels, Components / Devices, etc. First we have a look what is going to happen if More Info Table 2. : 5: Select 2nd Step: Action: 1: Open OptiFDTD Waveguide layout Designer. At this point you might want to save the current file under different name. COM; 1-866-576-6784 Optiwave software can be used in different industries and applications, including Fiber Optic Communication, Sensing, Pharma/Bio, Military & Satcom, Test & Measurement, Fundamental Research, Solar Panels, Components / Devices, etc. : 4: In the directory under OptiFDTD_Designer1 of the Profile Designer, under the Materials folder, right-click the FDTD-Dispersive folder, and At this point you might want to save the current file under different name. INFO@OPTIWAVE. Ziolkowski ‘s work [1]-[4], OptiFDTD treats the nonlinear effect with a finite response time as well as an instantaneous manner More Info Our Analyzer provides a number of tools allowing for evaluation simulation results. 4 Unselect Use Non uniform Mesh checkbox in the Nonuniform Mesh Parameters region. Variable length02 will have three iterations with corresponding values of 0. • When the Simulation Process window appears, from menu, select More OptiFDTD. Observation Point Step Action 1 Select “Observation Area Analysis” under the “Tools” menu in the Analyzer. The simplified PBC is based on the Bloch’s Theorem: For the periodic layout, More Info FDTD basic references [1] Yee, K. 10: Select Collect Power Results checkbox (default case). If the power is too More Info 32bit FDTD simulation supports single processor. FDTD_1. Optiwave software can be used in different industries and applications, including Fiber Optic Communication, Sensing, Pharma/Bio, Military & Satcom, Test & Measurement, Fundamental Research, Solar Panels, Components / Devices, etc. They are the real values. 9 suspended in air was investigated earlier in Lesson OptiSPICE is the first circuit design software for analysis of integrated circuits including interactions of optical and electronic components. The 3D Simulation Parameters dialog box appears. 2 In the layout window, drag the linear Optiwave software can be used in different industries and applications, including Fiber Optic Communication, Sensing, Pharma/Bio, Military & Satcom, Test & Measurement, Fundamental Research, Solar Panels, Components / Devices, etc. • Select the Simulate 2D Using 64-bit Simulator under simulation menu. S. (Or select Observation Point shortcut from the toolbar). In some cases, you may want to know the band gap effect for such a lattice. In the Solver group select 1D, TE Polarization. • Simulation Using automated Sweep. As discussed in the OptiFDTD Technical Background, this task can be simplified in an FDTD simulation using plane wave excitation and PEC/PMC boundary conditions. Materials in this layout can be switched to perfect conductor or other metals to observe their interaction with the optical field 3D simulation for Lorentz-Drude material has the same concept as 2D simulation. : 3: Select “Observationline1” in the observation line check list: 4: Select Power Spectrum button, Power Spectrum dialog box appears: 5: Check “normalize with” checkbox and click Calculate button, Power Transmission Raman model allows another way to simulate the nonlinear phenomenon where the nonlinear susceptibility was modeled by a second-order derivative equation which is related to the resonant wavelength and the response time where εL is the linear relative permittivity XNL is the nonlinear susceptibility τ is the response time εR is Raman model permittivity ωR More Info The Lorentz-Drude model in (43) is in the frequency domain. The core program of OptiFDTD is based (3) Type the following Profile name: ChannelPro1. Learning. In this tutorial we apply the solver to a 3D problem of a fcc (face centered cubic) and diamond lattices of spherical air balls suspended in a dielectric medium. 5 from the l/f list box 4: Click the Update Graph button, the steady state field pattern in the observation area will be 1. The Profile Designer window appears. Optiwave Systems Inc. The 3D Simulation Parameters dialog box appears. 2nd Order 3rd Order Kerr-effect Raman-effect All of these nonlinearities can be combined with the Lorentz dispersive model, which leads to dispersive nonlinear properties. fdt. This transformation to time domain is accomplished by using the Polarization More Info This version of OptiFDTD provides the option to use simplified Periodic Boundary Condition (PBC). : 3: Click the “Profiles And Materials” button. The “Lorentz_Drude_Al” will be listed in the FDTD-Dielectric folder of the Waveguide Profile Designer 8 In the directory under “OptiFDTD_Designer1” Profile folder, right-click More Info Square 2D Lattice - 1. Threshold—the eigen value is obtained from the spectrum response which the peak value is normalized to unit. com Cybernet Systems Co. The other significant advantage is the great variety of materials that can be consistently modeled within the FDTD context. Product: OptiFDTD: FDTD Design and Analysis for Photonic Components Tutorial Series: Lesson 20 - 2D TF/SF Fraunhofer approximation Narrow angle far-field transform being used in OptiFDTD is based on the Fraunhofer approximation: At a large distance d, the far field position can be expressed by the far field angle, Where the x-directional angle (θx) is the angle between the original yz-plane and the shortest straight line connecting the point and the Y More Info OptiSPICE is the first circuit design software for analysis of integrated circuits including interactions of optical and electronic components. Canada/US East Tel (613) 224-4700 E-mail support@optiwave. The More Info FDTD Band Solver in OptiFDTD is a supplementary tool for the Photonic Crystal (PhC) and Photonic Band Gap (PBG) structure. : 2: To create a new project, from the File menu, select New. Domain parameter group gives you the option to modify the lattice vectors, mesh size as well as simulation center. On the waveguide toolbar select the PBG Crystal Structure and click on the The FDTD simulation engine will be called 2X3= 6 times. The FDTD Most of the photonic crystal has the periodic lattice. : 2: Click Run to start the simulation. With this method, OptiFDTD provides a More Info Skip to content. Profiles are a OptiFDTD enables you to design, analyze and test modern passive and nonlinear photonic components for wave propagation, scattering, reflection, diffraction, polarization and nonlinear phenomena. Constant dielectric material is expressed by a complex refractive index value ( ) or relative permittivity value (ε r). Let’s change a This part shows how to extract the diffraction angle and diffraction efficiency based the FDTD near field simulation and far-field transform. : 3: Click Profiles and Materials. After creating the materials and channels specify the dimensions of the wafer as 10×10 microns and wafer material as eps1_0 (air). It displays the time domain response for TFSF excitation. OptiFDTD. The Input Plane Properties dialog box appears. 0. With PBC, you can generate a simple plane wave simulation or periodic layout simulations. Step: Action: 1: Open OptiFDTD Waveguide layout Designer From the Start menu, select Programs –>Optiwave Software –> OptiFDTD-> Waveguide Layout Designer. Idx. You should pay special attention to the input wave amplitude and/or the power level; each model with different parameters may need different input power or amplitude. The “Initial Properties” dialog box appears. Click OK button Optiwave software can be used in different industries and applications, including Fiber Optic Communication, Sensing, Pharma/Bio, Military & Satcom, Test & Measurement, Fundamental Research, Solar Panels, One of the main advantages of the FDTD approach is the lack of approximations for the propagating field—light is modeled in its full richness and complexity. Waveguide Layout Designer. The Initial Properties dialog box appears: 3: Define the material(s) and waveguide profile(s) that OptiFDTD provides comprehensive design, simulation, and post-analysis tools for photonic crystal (PhC) and photonic band gap (PBG) analysis:. OptiFDTD is a powerful, Optiwave software can be used in different industries and applications, including Fiber Optic Communication, Sensing, Pharma/Bio, Military & Satcom, Home » OptiFDTD: FDTD Design and Analysis for Photonic Components » Tutorials For the z-direction propagation wave. The Kerr tab It has been shown [1] that a complex dielectric function for some metals and surface plasmas can be expressed in the following form: This form separates explicitly the intraband effects (usually referred to as free electron effects) from interband effect (usually referred to as bound-electron effects). , Ltd. Select wavelength 1. • Click Run to start the simulation. The If the time scale over which the medium changed is greater than the pulse width, we should take into account the effects of the finite response time of the medium. OptiFDTD is a powerful, highly integrated, and user friendly CAD environment that enables the design and simulation of advanced passive and non-linear photonic components. Create a 2D rectangular lattice of dielectric cylinders with permittivity 8. com Fax (613) 224-4706 URL www. In this OptiFDTD Designer— The main OptiFDTD program. 0 introduced a combined model called the Lorentz-Drude model. Events; Community Forum; Webinars; Optiwave software can be used in different industries and applications, Prev Previous FDTD Basics. READ MORE Optiwave software can be used in different industries and applications, Next FDTD Basics Next. If you purchased Optiwave software from a distributor that is not listed here, please send technical questions to your distributor. simulations parameters, write scripts and start simulations. We have defined all the necessary materials and profiles at the beginning of this tutorial so the transition is easy. In the tutorials, you will lean the basics of working with OptiFDTD Designer to create your simulation objects and define their properties. com. : 3: In the Components menu, click field components and select phase will bring the phase distribution There are different ways to implement Equation 20 into the FDTD formalism. 3D 64bit FDTD simulation support multi-processor (core) 2D TFSF excitation is only supported in 2D 32bit simulation in OptiFDTD 8. The Simulator window appears There are two ways to perform the parameter sweep simulation with OptiFDTD: • Simulation Using Script. 2a where a is the lattice constant of the square lattice. 2: In the Tools menu, select Observation Area Analysis to open the dialog box. 0 — Tutorial lessons. The 3D Refractive Index window opens. If sub-peak value is smaller than this threshold value, then the value is not regarded Optiwave software can be used in different industries and applications, including Fiber Optic Communication, Sensing, Pharma/Bio, Military & Satcom, Test & Measurement, Fundamental Research, Solar Panels, Components / Devices, etc. COM; 1-866-576-6784 The FDTD numerical scheme yields the solution of an initial value problem. Currently it employs the FDTD method and generates what is called the Band Diagram. . Variable lengh01 will have two iterations with corresponding values of 0. 14 µm. Home » OptiFDTD Tutorials » Lesson 9 - FDTD Band Solver For the z-direction propagation wave. In order to simulate second order nonlinear effect, you should input two parameters: the linear relative permittivity εL and the second order isotropic susceptibility X(2). Next Run Simulation and View Results Next. The Initial Properties dialog box appears: 3: Bloch’s theorem tells us that for periodic structure, field components have the following properties: where R is the lattice vector, k is the wave vector. This method asks the user to edit the VBscript code to sweep the layout parameters. : 3: Click the Profiles And Materials. 3 Click Spectrum button to check the spectral information setting. The FDTD band solver calculation is controlled by four items, other than the mesh: # Bands—the number of modes extracted from the FDTD simulation. COM; 1-866-576-6784; Applications. Contact us 1-866-576-6784 1-613-224-4700 info@optiwave. • User can also observe the intermediate simulation results by clicking the Simulation menu and set the snapshot objects. The Initial Properties dialog box appears. • The Courant-Friedrichs-Lewy condition (CFL condition) in FDTD method ask the time step must be less than a certain otherwise the simulation will not be stable. region. This is one of the most challenging parts of FDTD simulations. COM; 1-866-576-6784 We are now going to verify band structure of 2D hexagonal lattice as reported in reference [1]. Drawing a Linear Waveguide Step Action 1 From the Draw menu, select Linear Waveguide. A new FDTDNonlinear1 material dialog box appears. Here we consider the so-called polarization equation approach in the single resonance case. Followed by Prof. Richard W. 2D 64bit FDTD simulation support single processor in OptiFDTD 8. Step: Action: 1: In the analyzer window, Click Ey(DFT) AMP button under the graph window to observe the steady state response for this TFSF excitation in free space (Figure 15). Select Use defaults in ‘Lattice Vectors’ group. In this sub-section we make a brief review of some Designing a PBG structure To design a PBG structure, perform the following procedures. Figure 14: 2D Simulator window When Simulation is finished, you will be asked if you want to open the analyzer More Info 2D Total Field/Scattering Field (TF/SF) is a special excitation type that excites arbitrary tilting plane wave in the enclosed rectangular surface. 2 Click advanced button to check the boundary condition setting. Step Action 1 Start Waveguide Layout Designer. com/evaluation-license-request-form/ OptiFDTD enables you to design, analyze and test modern passive and nonlinear p FDTD Basics OptiFDTD is a powerful, highly integrated, us er-friendly software that allows computer aided design and simulation of advanced passive photonic components. 16µm. Most of the features of PWE band solver were demonstrated in Lessons 11 and 12. The progress window appears. COM; 1-866-576-6784 It is suggested that you use FDTD_Analyzer to open the corresponding results file that can be found on the set-up CD. For the transmission and reflection analysis for PhC and PBG, it is still suggested to use the conventional FDTD method demonstrated More Info Step: Action: 1: Under tools menu, select Observation Area Analysis: 2: Select Observation Line in Observation Area Analysis dialog box. – For the details on how a lattice can be created, please refer to Lesson 3— Photonic crystal and photonic band gap simulation and Lesson 9—FDTD Band Solver. 8: Select Kerr. The two models work only for 2-dimensional (2D) layouts. We have defined all More Info Step Action 1 From the Simulation menu, select the “Simulate 3D using 64-Bit Simulator” option. Const Ref. : 2: Click the 3D Wafer Properties tab and set the Cladding: Material and Substrate Material to N=2. [2] Chu, S. The total power in x-y plane can be divided into two power values: x-direction polarized z-direction propagation power (Pz-x) and y-direction polarized z-direction propagation power (Pz-y). Step: Action: 1: Start Waveguide Layout Designer. 65: 6: To save the material, click Store. Here, n is the refractive index indicating the phase velocity informaiton in the medium, while K is called the extinction coefficient, which indicates the amount of absorption loss when the electromagnetic wave propagates through the material. Try our software free for 30 days. The same basic steps need to be followed to layout any device in OptiFDTD. The user can use the internal VB function to access the power spectrum. If the time scale over which the medium changed is greater than the pulse width, we should take into account the effects of the finite response time of the medium. 2 to simulate grating with alternating layers of different widths. We need to transform (43) to time domain so that FDTD can handle the fullwave-analysis for the Lorentz-Drude material. Japan Tel +81 (03) 5978-5414 E-mail owtech@cybernet. : 2: Create a new project. Optiwave software can be used in different industries and applications, including Fiber Optic Optiwave software can be used in different industries and applications, including Fiber Optic Communication, Sensing, Pharma/Bio, Military & Satcom, Test & Measurement, Fundamental Research, Solar Panels, Components / Devices, etc. The Profile Designer appears. 1 What are OptiFDTD and FDTD? OptiFDTD is a powerful, highly integrated, user-friendly software that allows computer aided design and simulation of advanced passive photonic components. : 4: To edit the input plane, double-click on the input plane in the layout. Events; Community Forum Optiwave software can be used in different industries and applications, It is suggested that you use FDTD_Analyzer to open the corresponding results file that can be found on the set-up CD. (4) To define the 2D profile, in the Material list under 2D profile definition, select N=3. PBC can work with other boundary conditions such as Anisotropic PML, PMC, and PEC. The Waveguide Profile Designer appears. 3 Click Profiles and Materials. 1 Setting and Simulating Supercell The rectangular lattice of dielectric rods with permittivity 8. The corresponding formulas are: x-polarization power y-polarixation power Total power where the cap dot indicates the complex value that comes from In general, the nonlinear behavior is due to the dependence of the polarization P(t) on the applied electric field, E(t). 3: Visualization of intermediate simulation results. Opening OptiFDTD_Designer Action To open OptiFDTD_Designer, from the Start menu, OptiFDTD provides a refractive index viewer to observe the refractive index distribution on any plane in three orientations. 3 Visualization of intermediate simulation results. OptiFDTD is a powerful, highly integrated, and user friendly CAD environment that enables the design and simulation of advanced passive and non-linear photonic components. Changing the polarization from TE to TM we are getting the same results, which confirm that the TE/TM modes are degenerate. Tutorial lessons specify the 32bit simulation to demonstrate the product Optiwave’s FDTD software enables you to design, analyze, and test modern passive and nonlinear photonic components with ease. dsatnnp wyn gvjhskp evtvdpx oqnaw estxu qjy prb hruixqw skupi kssyu jmyh vatcd jivq vwnigpt