Homogeneous Saturation

If a strong Light beam is amplified in a Gain medium, the gain can be saturated. This saturation is called homogeneous, IF the shape of the gain Spectrum is not modified. Homogeneous saturation usually occurs when the finite gain Bandwidth is caused by homogeneous broadening. However, quasi-homogeneous saturation is also sometimes observed despite Inhomogeneous Broadening in situations where many different Stark level transitions overlap.

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