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Which consequence manifests within a laser gain medium at high intensity?

A)Stimulated absorption rate increase
B)Increased spontaneous emission rate
C)Bleaching due to orbital saturation
D)Reduced two-photon absorption losses

💡 Explanation

Photon flux depletes the ground state through stimulated absorption; therefore, bleaching happens because orbital saturation reduces gain rather than increased absorption, which is a non-linear process at extreme intensity due to two-photon absorption.

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