Welcome

The developed MATLAB application can be utilized to automatically tune and characterize phase-changing optical filters. The tuning is enabled by a pulsed laser, function generator, and oscilloscope that are automatically controlled through MATLAB. A bandpass linear variable filter (LVF) and infrared (IR) camera enable the characterization.The linear variable filter (LVF) enables compact, low-cost, and in situ measurement of the tunable filter’s bandpass center wavelength.

Getting started

Software and Packages

1. Download and install MATLAB.

2. Install the following toolboxes: Control Systems Toolbox, Image Processing Toolbox, Instrument Control Toolbox.

3. Download and install the FLIR File Reader SDK for MATLAB.

4. Download and install the LVF characterization MATLAB GUI by clicking lvf_characterization.mlappinstall.

Instrument Drivers

The required instrument drivers will vary depending on your instrument’s manufacturer and model. Any oscilloscope and function generator that utilizes an underlying IVI-C driver can be utilized with the developed GUI. Below are instructions for utilizing a Tekronix DPO-, MDO-, or MSO-class oscilloscope.

1. Download and install TekVISA.
2. Download and install the DPO2000, DPO3000, DPO4000 IVI Driver.

Hardware

Oscilloscope and Function Generator

Linear Variable Filter

FLIR SC8000 Series IR camera

GUI Overview

Support and Helpful Links

Forum for Tektronix hardware