In a three level system, the threshold power decreases inversely with the length of the fiber gain medium.

Name: In a three level system, the threshold power decreases inversely with the length of the fiber gain medium.
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Quizplus · Accepted Answer

In a three-level laser system, the threshold power typically increases with the length of the fiber gain medium because longer fibers require more pump power to achieve the population inversion necessary for lasing, due to increased absorption and scattering losses.

In a Three Level System, the Threshold Power Decreases Inversely