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← ScienceWhich outcome occurs when a laser experiences mode competition?
A)Power concentrates into a single mode✓
B)Frequency stability bandwidth greatly decreases
C)Spatial transverse coherence significantly increases
D)Output efficiency reaches theoretical limit
💡 Explanation
Mode competition causes power oscillations because the gain medium can only support one dominant mode; therefore, energy transfers to one powerful mode, rather than distributed equally; coherence does not naturally rise.
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