File:Incandescent lamp spectra.png

Summary
This image was taken from the Optical Spectrum Analyzer (OSA) from a ~20microwatt Halogen light source coupled from a fiber bundle, at the Vasilyev Lab, at University of Texas, at Arlington, by the author. The light source spreads over a larger wavelength range, even if the spectra over the Infrared (IR) region is only shown by the instrument resolution.