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← ScienceWhich consequence results when mode fluctuations distort laser pulses?
A)Increased pulse duration broadening occurs✓
B)Decreased spatial coherence is observed
C)Reduced laser threshold power results
D)Enhanced second harmonic generation occurs
💡 Explanation
Increased pulse duration broadening occurs via group velocity dispersion. This happens because mode fluctuations cause varying frequency components that propagate at slightly different group velocities through the gain medium; therefore, pulses stretch in time rather than maintain short duration.
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