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Which outcome occurs when injecting incoherent light into hollow-core fiber?

A)Reduced modal noise throughout transmission
B)Increased Brillouin backscattering signal
C)Limited stimulated Raman scattering efficiency
D)Enhanced nonlinear spectral broadening

💡 Explanation

Enhanced nonlinear spectral broadening occurs because self-phase modulation becomes ineffective without temporal or spatial coherence in the beam. Therefore, spectral broadening is limited, rather than higher-order nonlinear processes because coherence is required for accumulation.

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