Application of Superluminescent Diode in White Light Interferometer
White light interferometry using superluminescent diode is a well-developed and very old technique for optical analysis. Combining it with modern electronics, computers, and software has resulted in extremely powerful measurement methods. Currently, the most popular light source for interferometry is a laser. The primary explanation for this is that laser light has a long coherence duration, making interference fringes simple to obtain, and interferometer path lengths do not need to be balanced as they do when using a white light source with a short coherence length. The principle of White Light Interferometer To be a true white light interferometer, a superluminescent diode interferometer must meet these two states. First, the zero-order interference fringe's position must be independent of wavelength. Next, the distance between interference fringes must not be related to wavelength. The inherent difference between the two beams is typically associated when light is split ...