OptiSystem Applications

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…

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).

SER & BER Analysis of QAM-PSK-PAM Systems

Demonstrates how to perform symbol error rate (SER) or bit error rate (BER) testing for higher order modulation systems.

Photodiode Sensitivity Modelling

One of the main working parts of any optical receiver is the photodetector (which converts optical power to an electric current). Either a PIN or APD (avalanche photodiode) photodetector can be used depending on the system performance objectives.

Fiber Optic Gyroscope (FOG) Systems Design

Fiber optic gyroscopes, using the Sagnac effect, can rapidly and accurately sense changes in orientation (angular velocity) from interferometric measurements. Two open loop detection techniques, DC and phase modulation, are demonstrated using OptiSystem.

OptiSystem C++ Component

OptiSystem’s Cpp Component, similar in operation to the MATLAB Component, allows users to create their own custom components. These are written in C++ and loaded into OptiSystem via dynamic link libraries (DLLs). The user has access to OptiSystem’s signal classes and an extensive library of convenience functions. Users can also create their own graphs and…

Matlab Binary Switch

Matlab Binary Switch

These video tutorials will explain the protocol for setting up the MATLAB component in OptiSystem, by demonstrating a simple binary switch.

Optical Transmitters

The role of the optical transmitter is to: convert the electrical signal into optical form, and launch the resulting optical signal into the optical fiber. The optical transmitter consists of the following components: optical source electrical pulse generator optical modulator (see Figure 1). The launched power is an important design parameter, as indicates how much…

LED Modulation Response

The frequency response of an LED is determined by the carrier dynamics (and therefore is limited by the carrier lifetime Tn) and the parasitic capacitance of the LED (described by the RC constant TRC[2]. If a small, constant forward bias is applied, the influence of the parasitic capacitance of the LED can be neglected. The…