Products

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).