Tag Archives: how a laser works

How does a laser work

One must have seen and if not seen then must have heard the term laser. But if you have seen the laser light emitting from a source, then there should be natural question how does a laser work? Therefore let … Continue reading

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Working of Helium Neon Laser

In the earlier articles, I have explained the construction of helium neon laser. Today let us discuss the working of helium neon laser: Pumping of He atoms: When electric discharge is passed through the gas mixture of He and Ne, … Continue reading

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Working of Nd YAG laser

In the last article, I have explained the construction of Nd:YAG laser. Today, I will explain the working of it: Nd:YAG is a four level laser system. The pumping of neodynium (Nd3+) ions to upper state (E4) is done using … Continue reading

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Working of Ruby laser

In the last article, I have discussed construction of ruby laser. In this article, I will discuss working of ruby laser. Ruby is a three level laser system. Suppose there are three levels E1, E2 and (E3 & E4). E1 … Continue reading

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