Internship Report from the year 2017 in the subject Physics - Experimental Physics, grade: 2,0, University of Bayreuth (Physikalisches Institut), course: Physikalisches Praktikum für Fortgeschrittene, language: English, abstract: Lasers are very commonly used in everyday life, e.g. in laser pointers, CD-Players or the lasers used in cash registers. But what makes lasers special and distinguishes t...