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← ScienceWhich consequence typically results from exceeding the gain medium's inversion threshold in a pulsed laser?
A)Premature saturation of optical amplification
B)Enhanced spatial mode coherence degradation
C)Increased probability of parasitic oscillations✓
D)Suppression of Q-switching performance
💡 Explanation
Parasitic oscillations increase because, when the gain medium's inversion threshold is greatly exceeded, spontaneous emission leads to lasing in unwanted directions. Therefore, parasitic oscillations increase, rather than suppressing intended Q-switching behavior, because photons prematurely deplete the gain medium faster.
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