Principle
The difference between spontaneous and stimulated emission of light is demonstrated. The beam propagation within the resonator cavity of a He- Ne laser and its divergence are determined, its stability criterion is checked and the relative output power of the laser i ...
The visible light of a semiconductor diode laser is used to excite the neodymium atoms within a Nd-YAG (NeodymiumYttrium Aluminium Garnet) rod. The power output of the semiconductor diode laser is first recorded as a function of the injection current. The fluorescen ...
The rate equation model for an optically pumped four-level laser system is determined. As lasing medium, a Nd:YAG (Neodymium-Yttrium Aluminium Garnet) rod has been selected which is pumped by means of a semiconductor diode laser. The IR-power output of the Nd:YAG la ...
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