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← ScienceWhich consequence results when stimulated emission weakens laser coherence?
A)Reduced fringe visibility in interferometry✓
B)Increased chromatic aberration in lenses
C)Enhanced signal-to-noise ratio imaging
D)Better spectral resolution spectroscopy
💡 Explanation
Reduced spontaneous emission decreases laser coherence, causing less predictable phase relationships; because interferometry requires consistent phase over the wavefront, the fringes wash away. Therefore, visibility decreases, rather than resolution improving, because of signal overlap.
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