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← ScienceWhich consequence results when excessive optical pumping occurs in pulsed lasers?
A)Premature gain switching is initiated✓
B)Population inversion limits efficiency
C)Stimulated Raman scattering decreases pulsewidth
D)Self-phase modulation degrades coherence length
💡 Explanation
Premature gain switching occurs in pulsed lasers because higher pump energy causes increased spontaneous emission which depletes the inversion, therefore, the laser pulse starts earlier, rather than at the intended optimal time, lowering energy output.
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