Science continues to develop this world and help humanity improve our technology using science. Optical fibers are no exception. They have been used for all kinds of things, including medical purposes, which is the main focus of this report. But also understand the advantages and disadvantages of optical fibers as well as compare them to determine whether optical fibers are essential for us humans or not. According to BBC Bitesize, optical fibers are a thin rod of high-quality glass. There is very little light absorbed by the glass but the light passing through the optical fiber undergoes total internal reflection; which is the complete reflection of a light ray greater than the limit of the critical angle (“The critical angle and optical fibers”). Say no to plagiarism. Get a tailor-made essay on “Why Violent Video Games Should Not Be Banned”? Get the original essay According to cyberphysics, optical fibers are used to transmit signals in the form of pulses of light at a distance greater than 50 km. It is thanks to their total internal reflection that they are able to guide light over long distances. Research in cyberphysics also indicates that optical fibers are capable of guiding light for a very long time because the walls of the fiber do not absorb any light as long as the incidence is greater than the angle of incidence. Science has enabled fiber optics to be 100% efficient due to total internal reflection which causes 100% reflection. For total internal reflection to occur, two conditions must be met. First, the refractive index of the first median is greater than the refractive index of the second median (“Optical fibers”). The second condition is that the angle of incidence must be greater than the critical angle (“Optical fibers”). As stated earlier, science developed this world to help humanity. Optical fibers have also helped us and it is thanks to their science that they are able to guide light and transmit signals over a very long distance. Optical fibers are responsible for the world's cable television and the world's high-speed Internet. There are more efficient cables than copper cables for telephone lines because they can carry more signals than copper cable telephone lines ("BBC - GCSE Bitesize Science - Other applications of light"). Carrying signals to and from locations is the job you would see using optical fibers. But optical fibers aren't just used for cable TV and high-speed Internet. According to BBC-GCSE Bitesize Science, optical fibers are used by endoscopes. Endoscopes are used to examine the inside of the body which uses a bundle of optical fibers to transmit the image around corners ("BBC-GCSE Bitesize Science - Other applications of light"). When doctors are exposed to such technology and are able to use it to their advantage; they are able to diagnose diseases like cancer or clearly see what they are doing during surgery. [image: ]In addition to the medical use of optical fibers; They have many advantages that make optical fibers very efficient to use. According to FS. COM, one of the advantages of optical fibers is that they are resistant to electromagnetic interference. This means that even though the environment may have problems with electricity, heating, ventilation or other industrial interference; Since optical fibers have a very low bit error, the fiber is.