An Overview on Several Types of the Optical Interferometers

A common research instrument in many branches of science and engineering is the interferometer. Because they can identify and analyse interference patterns caused by the combination of light sources, these mid- to late-19th-century technologies are known as interferometers. The tool used for this process is called a "interferometer" or "interfere-meter." Interferometers are remarkably versatile devices that enable the development of highly accurate optical sensors for a wide range of applications. This article discussed the principles of interferometry as well as three different interferometer configurations. The chosen configuration will be influenced by the machinery, mechanical stability, laser coherence, and particular goals. Interferometers are widely used in lab-on-a-chip systems for non-invasive biomolecule research, astronomy, and gravitational wave detection.