Diode Laser

Along with the Co2 laser, the diode laser also shares status and the oldest lasers, because they were made in conjunction with the large gain medium of the Co2 laser. The diode laser is used in a variety of applications for reading messages. The laser can use the principle of reflection to fabricate the binary code used in music as well as data for computers. The laser can shine a continuous light onto a CD for example, and to the naked eye it can look as though the surface is smooth, it is not, but the speed at which the difference between a one and a zero occurs at radial speed of that row of measurements for the CD. Since the laser is simply reading, it can be enhanced by using a shorter wavelength laser, and adding more rows of data to the CD. This is the foundational theory behind the larger amounts of data that can be stored and read in the blue-ray CDs. They’re simply using an ultraviolet spectrum laser that looks blue, hence the name.

Diode lasers have been used for some time in the computational industry of physical hardware for computers. Laser pointers are made of these diode lasers. Due to the vast range, relative to the wavelengths of the nanometers of the laser beams, there are several different colors that these diodes can emit in laser pens, from blue down to orange and green all the way to red and beyond depending on the application and the customization that it has undergone. Fiber optic communication is base done these principles and much of the way that humans transfer knowledge in the modern age is premised on the work of these lasers.