Using Commonly Available Network Equipment for Laser Doppler Vibrometer Excitation and Calibration

Abstract

We have demonstrated that commonly available small form-factor pluggable (SFP) modules can be used for LDV excitation and calibration. While the expected intensity modulation at the photodiode inside the LDV interferometer is sinusoidal, the SFP module output is designed for and provides a rectangular modulation shape. The conducted experiments produced comparable results.