VFEM Accuracy and Advantages

As optical systems move towards an integrated platform, the modelling of high refractive index contrast, sub-wavelength dimension…

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Plasmonic Array

Plasmonic Arrays

Plasmonic nano-hole arrays are an interesting avenue of research because of their highly sensitive transmission properties. Incorporating the already strong light-matter interaction of surface plasmons into a periodic structure allows…

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Channel Switching Circuit

Channel Switching Based on MEMS

Applications   Design and simulation of opto-electronic circuits at the transistor level Signal integrity analysis of opto-electronic circuits           Benefits   Offers greater ease of schematic capture, parameter specification, waveform probing and usage. State-of-the-art transient time domain, small-signal …

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Optical Fiber - Fiber Profile

Dispersion Shifted Fiber

In this example, we will show you how to simulate optical fiber that has a triangular with annular ring profile. In addition, we will show you how to optimize given fiber profile to have zero dispersion at 1550 nm by …

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Optical Grating - Apodization

Fiber Bragg Grating

  In the first lesson, you will learn how to design a Fiber Bragg Grating with chirp and apodization. Such a grating finds application in fiber dispersion compensation.  S.1 The first thing you will do is to open a new project. …

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BPM - Figure 1 This is Fig.2 of Reference 1, drawn upside down. This waveguide is a ‘Substrate-Removed’ design, so the cladding is BCB, a polymer used to glue the waveguide to another substrate, not shown. This mounting exposes the AlGaAs cladding layer to air, and the Backside electrode is evaporated there. All lengths are in microns.

Electro-Optic Modulator

  This lesson shows how to make a 3D simulation in a material modified by the linear electro-optic effect (Pockels Effect). The waveguide design of Reference [1] is shown in Figure 1 below. In this lesson, this waveguide is created, a …

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FTTH: OCDMA Network Layout

FTTH (Fiber To The Home)

A broadband access network offers various high-speed services to the end-user such as internet, multimedia, tele-medicine and distant learning…

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DWDM Layout

DWDM (Dense Wavelength Division Multiplexing)

Dense Wavelength Division Multiplexing (DWDM) is a technology that allows multiple information streams to be transmitted simultaneously over a single fiber…

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RF spectrum for the in-phase component

Coherent Optical OFDM

Orthogonal frequency division multiplexing (OFDM) is a multicarrier transmission technique where a data stream is carried with many lower-rate subcarrier tones…

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Constellation diagram (for polarization X)

100 Gbps DP-QPSK System with Digital Signal Processing

The combination of polarization-multiplexing and quadrature phase-shift-keying (PM-QPSK or DP-QPSK) is emerging as one the most promising solutions to reach bit rates of 100 Gbps and higher.

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Optical Coherent Receiver Sensitivity Analysis

Optical coherent receiver technology can provide theoretical sensitivity levels to the order of 10’s of photons/bit. This application note provides an overview of common coherent receiver architectures…


Grating Coupler Design based on SOI Technology

Grating couplers are widely used input/output devices that couple light between fiber (or free-space) and sub-micrometer waveguides. This application note…


Ring Resonator Fiber Optic Gyroscope

This application note demonstrates the shift in resonant frequency in an optical ring resonator due to Sagnac effect and how a closed loop feedback system can be used to calculate the angular…


Optical Phase Locked Loop for Analog Homodyne Detection

For coherent demodulation it is essential that the frequency and the phase of the local oscillator closely matches the carrier signal…


40 Gbps Silicon Depletion Mode TW Modulator

Traveling wave modulators are widely used for their low power consumption and high speeds. In this application note a transmission line model is combined with an optical…


Symmetric Lossless X Coupler

The X Coupler is a basic component used in many kinds of optical circuits. Here its properties are analysed by theoretical means, and also by detailed simulation of…


Silicon Nanotapers for Fiber-to-Waveguide Coupling

Two approaches for coupling light on a high-confinement chip with sub-micron waveguides are gratings or taper couplers. This application example…


Plasmonic Waveguide Filters with Nanodisk Resonators

Surface plasmon polaritons (SPPs) are waves trapped on the surfaces of metals owing to the interaction between the free electrons in a metal and…


BER Analysis of BPSK with RS Encoding

Demonstrates how to perform bit error rate (BER) testing for a binary phase-shift keyed (BPSK) optical system with Reed Solomon (RS) encoders and decoders.


LIDAR Systems Design

OptiSystem is an excellent tool for designing prototype designs of communications and sensor systems. The following application note demonstrates how OptiSystem can be used to design and simulate realistic models for light detection and ranging systems (LIDAR).

Webinar: Optical Sensor Design using OptiSystem

March 16, 2017

The theory and implementation of applications to LIDAR, fiber-optic gyroscopes and fiber…

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