Grating projections in FDTD overview
The near to far Grating Projections (GP) calculate the far-field profile from a periodic grating structure. The near field data is typically obtained from Lumerical''s FDTD. The far-field is then ca...
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FDTD analysis of nonlinear Bragg grating based optical devices
Alternatively, the Finite-Difference-Time-Domain (FDTD) method has been proven to be one of the most powerful numeri-cal techniques that usefully applied to a wide range of optical devices either through
Finite-difference Time-domain (FDTD) Optical Simulations: A Primer
By slicing open specimens and using SEM, scientists identified a range of internal microstructures; next, they used FDTD simulations to help identify that flat, ordered gratings are
Grating Coupler Simulations | gcharalampous/lumerical-py-scripts
The grating coupler simulation system is organized into two primary modules: FDTD/grating_coupler_2D/ and FDTD/grating_coupler_rectangular_3D/. Both modules utilize a
BOR-FDTD analysis of nonlinear Fiber Bragg grating and distributed
In this paper, a FDTD technique, developed for nonlinear structures, is used to analyze a nonlinear waveguide and periodic nonlinear structures that exhibit attractive properties that make
Grating coupler – Ansys Optics
High efficiency grating couplers : Couplers with an efficiency higher than 90% over a large bandwidth have been designed with FDTD using more sophisticated
Performance analysis of the FDTD method applied to
Abstract The finite-difference time-domain method (FDTD) allows electromagnetic field distribution analysis as a function of time and space. The method is applied to analyze holographic
Numerical Examination of Fiber Bragg Grating by FDTD
Fiber Bragg Grating (FBG) is one of components involved in optical telecommunication technology. The existence of FBG is needed when an optical fiber amplifier and filter are used.
Broadband grating coupler (2D)
This 2D FDTD example shows how to obtain broadband characteristics of a grating coupler and compares the results to experimental data. Furthermore, this
FDTD Software | Start a 30-Day Free Evaluation | Optiwave
Optiwave''s FDTD software enables you to design, analyze, and test modern passive and nonlinear photonic components with ease. Try our software free for 30 days.
A Finite-Difference Time-Domain Analysis of Fiber Bragg Gratings
Abstract: An analytical formulation and modeling of an optical fiber Bragg gratings has been developed and is reported in this paper.
Fiber Bragg gratings
In this topic, we demonstrate how to simulate fiber Bragg grating (FBGs) using MODE'' eigenmode expansion (EME) solver. Simulation setup The FBG is constructed with an effective index of 1.5, and
Bragg grating initial design with FDTD
In this example, we will use 3D FDTD simulations to access how the performance of the Bragg grating is affected by geometric parameters such as the corrugation depth and misalignment. Background...
Chirped and duty-cycle-apodized hybrid plasmonic grating coupler
Mode-field and wavevector mismatch between standard single-mode fibers and subwavelength plasmonic waveguides severely limit both coupling efficiency and bandwidth in photonic integrated
The study of 3D FDTD modelling of large-scale Bragg gratings
Abstract This study discusses the importance of accurately calculating the optical response of Bragg gratings and the challenges associated with the 3D finite-difference time-domain
BOR-FDTD analysis of nonlinear Fiber Bragg grating and distributed
Recently, monodimentional periodic structures of optical fiber that is known as fiber Bragg grating (FBG) received a great deal of attention for both sensing and communication applications.
Finite-Difference Time-Domain (FDTD) Simulation Approach
The numerical demonstration of a unique partial-width entrenched-core (PWEC) waveguide grating utilizing the finite-difference time-domain (FDTD) simulation approach is shown in
Finite-Difference Time-Domain Simulations of Surface Bragg Gratings
Abstract—Bragg gratings are an essential component of semi-conductor lasers. One of the most precise methods to calculate an optical response of such a component is the 3D FDTD method. However,
Numerical Examination of Fiber Bragg Grating by FDTD
Abstract Optical fiber has made a big revolution in telecommunication systems. This optical technology involving lots of components has to be working together. Fiber Bragg Grating (FBG) is one of
A Finite-Difference Time-Domain Analysis of Fiber Bragg Gratings
An analytical formulation and modeling of an optical fiber Bragg gratings has been developed and is reported in this paper. Supported by the Finite-Difference Time-Domain (FDTD) method, it was
Curved waveguide taper (varFDTD and FDTD)
The figure below compares the results between 2.5D FDTD and 3D FDTD (using taperFDTD.fsp), and you can see that the results are almost identical to 3D FDTD. See also Grating Coupler Design and
Grating coupler – Ansys Optics
Design a grating coupler connecting a single-mode fiber on the surface of a photonic chip to an integrated waveguide. The built-in particle swarm optimization tool is used to maximize the coupl...
Finite-Difference Time-Domain Simulations of Surface Bragg Gratings
Here, we investigate the performance of 2D and 3D Finite-Difference Time-Domain (FDTD) methods for Bragg grating simulations. We demonstrate, that the 2D FDTD method can be used for grating
Optical Grating Simulation and Design | Software
Get a quick overview of our powerful OptiGrating software below and learn the ins and outs through our detailed tutorials. Follow our interactive walkthrough of the
Investigations on highly sensitive fiber Bragg gratings with different
The Fiber Brag Grating (FBG) optical sensor is investigated with uniform fiber grating (UFBG), superstructure fiber Bragg grating (SFBG) and tilted fiber Bragg grating (TFBG) using Finite
FDTD analysis of diffraction efficiency in a hologram for application
However recently FDTD (Finite Difference time domain) technique has emerged as a powerful technique to analyse the behaviour of electromagnetic field in different structures. For